Register      Login
Crop and Pasture Science Crop and Pasture Science Society
Plant sciences, sustainable farming systems and food quality
REVIEW

Can wheat varietal mixtures buffer the impacts of water deficit?

Paul Adu-Gyamfi A B , Tariq Mahmood A and Richard Trethowan A
+ Author Affiliations
- Author Affiliations

A Plant Breeding Institute, Faculty of Agriculture & Environment University of Sydney, Cobbitty, NSW 2570, Australia.

B Corresponding author. Email: paul.adu-gyamfi@sydney.edu.au

Crop and Pasture Science 66(8) 757-769 https://doi.org/10.1071/CP14177
Submitted: 30 June 2014  Accepted: 12 March 2015   Published: 16 July 2015

Abstract

Moisture stress limits the yield and productivity of wheat, a staple food for 35% of the world’s population. The reproductive stage is the most vulnerable to moisture deficit, and genetic variation for tolerance to stress has been identified in the wheat gene pool. Introducing this complex variation into new, pure-line cultivars is difficult and time consuming. However, varietal mixtures can be an effective alternative to traditional gene pyramiding. Varietal mixtures lessen the impacts of abiotic and biotic stresses in two ways. First, they buffer yield through more efficient resource use, including soil moisture, particularly evident when mixtures comprise complementary physiological traits that influence water-use efficiency. Second, they improve resistance to root diseases and pests that limit root growth and subsequent access to, and absorption of, water from deeper in the soil profile. This review evaluates the concept of varietal mixtures and assesses their impact on crop productivity and environmental buffering. The potential of physiological and root disease resistance trait mixtures to stabilise yield is also explored. Avenues for developing compatible mixtures based on physiological traits that increase yield in water-limited environments are evaluated.

Additional keywords: buffering, drought, mixture components, physiological traits, root diseases, water-use efficiency.


References

Akinsanmi OA, Mitter V, Simpfendorfer S, Backhouse D, Chakraborty S (2004) Identity and pathogenicity of Fusarium spp. isolated from wheat fields in Queensland and northern New South Wales. Australian Journal of Agricultural Research 55, 97–107.
Identity and pathogenicity of Fusarium spp. isolated from wheat fields in Queensland and northern New South Wales.Crossref | GoogleScholarGoogle Scholar |

Allan R, Line RF, Peterson CJ, Rubenthaler GL, Morrison KJ, Rohde CR (1983) Crew, a multiline wheat cultivar. Crop Science 23, 1015–1016.
Crew, a multiline wheat cultivar.Crossref | GoogleScholarGoogle Scholar |

Ashizawa T, Koizumi S, Sasahara M, Ohba A, Hori T, Ishikawa K, Sasaki Y, Kuroda T, Harasawa R, Zenbayashi-Sawata K (2007) Lesion-based analysis of leaf blast suppression in mixture of rice cultivar and a resistant near-isogenic line. Journal of General Plant Pathology 73, 15–21.
Lesion-based analysis of leaf blast suppression in mixture of rice cultivar and a resistant near-isogenic line.Crossref | GoogleScholarGoogle Scholar |

Ashraf M (2010) Inducing drought tolerance in plants: Recent advances. Biotechnology Advances 28, 169–183.
Inducing drought tolerance in plants: Recent advances.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD1MXhsFGrtL3K&md5=befb029b225ca3d3b07ea8047077670bCAS | 19914371PubMed |

Baldwin J, Tinker P, Nye P (1972) Uptake of solutes by multiple root systems from soil. Plant and Soil 36, 693–708.
Uptake of solutes by multiple root systems from soil.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaE38XltFaqu78%3D&md5=49ad6ee97f1f33e1bd82ef759158fbb2CAS |

Barnabás B, Jäger K, Fehér A (2008) The effect of drought and heat stress on reproductive processes in cereals. Plant, Cell & Environment 31, 11–38.

Barraclough P, Kuhlmann H, Weir A (1989) The effects of prolonged drought and nitrogen fertilizer on root and shoot growth and water uptake by winter wheat. Journal of Agronomy & Crop Science 163, 352–360.
The effects of prolonged drought and nitrogen fertilizer on root and shoot growth and water uptake by winter wheat.Crossref | GoogleScholarGoogle Scholar |

Bean MM, Huang DS, Miller RE (1990) Some wheat and flour properties of Klasic—A hard white wheat. Cereal Chemistry 67, 307–309.

Bolnick DI, Vasseur DA, Amarasekare P, Araújo MS, Bürger R, Levine JM, Novak M, Rudolf VHW, Schreiber SJ, Urban MC (2011) Why intraspecific trait variation matters in community ecology. Trends in Ecology & Evolution 26, 183–192.
Why intraspecific trait variation matters in community ecology.Crossref | GoogleScholarGoogle Scholar |

Borlaug NE (2000) Ending world hunger. The promise of biotechnology and the threat of antiscience zealotry. Plant Physiology 124, 487–490.
Ending world hunger. The promise of biotechnology and the threat of antiscience zealotry.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD3cXnsF2rsrg%3D&md5=c5ee74c90e49b0b5f32e7e7c5580198aCAS | 11027697PubMed |

Borrell AK, Hammer GL (2000) Nitrogen dynamics and the physiological basis of stay-green in sorghum. Crop Science 40, 1295–1307.
Nitrogen dynamics and the physiological basis of stay-green in sorghum.Crossref | GoogleScholarGoogle Scholar |

Borrell AK, Hammer GL, Henzell RG (2000) Does maintaining green leaf area in sorghum improve yield under drought? II. Dry matter production and yield. Crop Science 40, 1037–1048.
Does maintaining green leaf area in sorghum improve yield under drought? II. Dry matter production and yield.Crossref | GoogleScholarGoogle Scholar |

Bovill WD, Ma W, Ritter K, Collard BCY, Davis M, Wildermuth GB, Sutherland MW (2006) Identification of novel QTL for resistance to crown rot in the doubled haploid wheat population ‘W21MMT70’  × ‘Mendos’. Plant Breeding 125, 538–543.
Identification of novel QTL for resistance to crown rot in the doubled haploid wheat population ‘W21MMT70’  × ‘Mendos’.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2sXpslSqsA%3D%3D&md5=123d4f1c7209e0cf391385678e0575a3CAS |

Bowden R, Shoyer J, Roozeboom K, Claasen M, Evans P, Heer B, Janssen K, Long J, Martin J, Schlegel R, Sears MW (2001a) Performance of wheat variety blends in Kansas. Agriculture Extension Bulletin No. 128, Kansas State University. Manhattan, KS, USA.

Bowden R, Shroyer J, Roozeboom K, Claassen M, Evans P, Gordon B, Heer B, Janssen K, Long J, Martin J (2001b) Performance of wheat variety blends in Kansas. Agriculture Extension Bulletin No. 128, Kansas State University, Manhattan, KS, USA.

Browning JA, Frey KJ (1969) Multiline cultivars as a means of disease control. Annual Review of Phytopathology 7, 355–382.
Multiline cultivars as a means of disease control.Crossref | GoogleScholarGoogle Scholar |

Browning J, Frey K (1981) Multiline concept in theory and practice. In ‘Strategies for the control of cereal disease’. (Eds JF Jenkyn, RT Plumb) (Federation of British Plant Pathologists)

Brush SB (1991) A farmer-based approach to conserving crop germplasm. Economic Botany 45, 153–165.
A farmer-based approach to conserving crop germplasm.Crossref | GoogleScholarGoogle Scholar |

Brush StB, Meng E (1998) Farmers’ valuation and conservation of crop genetic resources. Genetic Resources and Crop Evolution 45, 139–150.
Farmers’ valuation and conservation of crop genetic resources.Crossref | GoogleScholarGoogle Scholar |

Burgess LW, Backhouse D, Swan LJ, Esdaile RJ (1996) Control of Fusarium crown rot of wheat by late stubble burning and rotation with sorghum. Australasian Plant Pathology 25, 229–233.
Control of Fusarium crown rot of wheat by late stubble burning and rotation with sorghum.Crossref | GoogleScholarGoogle Scholar |

Cadet P, Berry S, Leslie G, Spaull V (2007) Management of nematodes and a stalk borer by increasing within‐field sugarcane cultivar diversity. Plant pathology 56, 526–535.

Callaway RM (1995) Positive interactions among plants. Botanical Review 61, 306–349.
Positive interactions among plants.Crossref | GoogleScholarGoogle Scholar |

Castillo P, Vovlas N (2007) ‘Pratylenchus (Nematoda: Pratylenchidae): diagnosis, biology, pathogenicity and management.’ (Brill: Leiden, The Netherlands)

Castro A (2001) Cultivar mixtures. The Plant Health Instructor. Available at: 10.1094/PHI-A-2001-1230-01

Cattivelli L, Rizza F, Badeck F-W, Mazzucotelli E, Mastrangelo AM, Francia E, Mare C, Tondelli A, Stanca AM (2008) Drought tolerance improvement in crop plants: an integrated view from breeding to genomics. Field Crops Research 105, 1–14.
Drought tolerance improvement in crop plants: an integrated view from breeding to genomics.Crossref | GoogleScholarGoogle Scholar |

Chakraborty S, Simpfendorfer S, Liu CJ, Mitter V, Scott JB, Akinsanmi OA, Ali S, Dill-Macky R, Nicol J, Backhouse D (2006) Pathogen population structure and epidemiology are keys to wheat crown rot and Fusarium head blight management. Australasian Plant Pathology 35, 643–655.
Pathogen population structure and epidemiology are keys to wheat crown rot and Fusarium head blight management.Crossref | GoogleScholarGoogle Scholar |

Champion GT, Froud-Williams RJ, Holland JM (1998) Interactions between wheat (Triticum aestivum L.) cultivar, row spacing and density and the effect on weed suppression and crop yield. Annals of Applied Biology 133, 443–453.
Interactions between wheat (Triticum aestivum L.) cultivar, row spacing and density and the effect on weed suppression and crop yield.Crossref | GoogleScholarGoogle Scholar |

Chin K, Husin AN (1982) ‘Rice variety mixtures in disease control. In ‘Proceedings International Conference on Plant Protection in the Tropics’. (Malaysian Plant Protection Society: Kuala Lumpur)

Ciha A (1984) Advantages of planting mixed wheat varieties. Agricultural Research 32, 14–15.

Coleman RD, Gill GS, Rebetzke GJ (2001) Identification of quantitative trait loci for traits conferring weed competitiveness in wheat (Triticum aestivum L.). Australian Journal of Agricultural Research 52, 1235–1246.
Identification of quantitative trait loci for traits conferring weed competitiveness in wheat (Triticum aestivum L.).Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD38XltlOnuw%3D%3D&md5=76c98590dc06af969c712b09acda48dcCAS |

Collard BCY, Grams RA, Bovill WD, Percy CD, Jolley R, Lehmensiek A, Wildermuth G, Sutherland MW (2005) Development of molecular markers for crown rot resistance in wheat: mapping of QTLs for seedling resistance in a ‘2-49’ × ‘Janz’ population. Plant Breeding 124, 532–537.
Development of molecular markers for crown rot resistance in wheat: mapping of QTLs for seedling resistance in a ‘2-49’ × ‘Janz’ population.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD28Xjs1arsg%3D%3D&md5=fe27f59f0507fb2dfb86b05283afa0a0CAS |

Condon A, Richards R, Farquhar G (1992) The effect of variation in soil water availability, vapour pressure deficit and nitrogen nutrition on carbon isotope discrimination in wheat. Crop & Pasture Science 43, 935–947.
The effect of variation in soil water availability, vapour pressure deficit and nitrogen nutrition on carbon isotope discrimination in wheat.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaK38XkvVOjsbY%3D&md5=88794521995624a03372256e16346d20CAS |

Cosser ND, Gooding MJ, Thompson AJ, Froud-Williams RJ (1997) Competitive ability and tolerance of organically grown wheat cultivars to natural weed infestations. Annals of Applied Biology 130, 523–535.
Competitive ability and tolerance of organically grown wheat cultivars to natural weed infestations.Crossref | GoogleScholarGoogle Scholar |

Cowger C, Weisz R (2008) Winter wheat blends (mixtures) produce a yield advantage in North Carolina. Agronomy Journal 100, 169–177.
Winter wheat blends (mixtures) produce a yield advantage in North Carolina.Crossref | GoogleScholarGoogle Scholar |

Cox CM, Garrett KA, Bowden RL, Fritz AK, Dendy SP, Heer WF (2004) Cultivar mixtures for the simultaneous management of multiple diseases: tan spot and leaf rust of wheat. Phytopathology 94, 961–969.
Cultivar mixtures for the simultaneous management of multiple diseases: tan spot and leaf rust of wheat.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BD1cjks1SmtQ%3D%3D&md5=c752872790409ee2fc4f8ab0d5e38754CAS | 18943072PubMed |

Crutsinger GM, Collins MD, Fordyce JA, Gompert Z, Nice CC, Sanders NJ (2006) Plant genotypic diversity predicts community structure and governs an ecosystem process. Science 313, 966–968.
Plant genotypic diversity predicts community structure and governs an ecosystem process.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD28XotFCitLY%3D&md5=399cba3bfb89f6e6c58fccc9b224e4f6CAS | 16917062PubMed |

Dai J, Wiersma J, Holen D (2012) Performance of hard red spring wheat cultivar mixtures. Agronomy Journal 104, 17–21.
Performance of hard red spring wheat cultivar mixtures.Crossref | GoogleScholarGoogle Scholar |

Daoura BG, Chen L, Hu Y-G (2013) Agronomic traits affected by dwarfing gene Rht-5 in common wheat (Triticum aestivum L.). Australian Journal of Crop Science 7, 1270–1276.

Dawson TE (1993) Hydraulic lift and water use by plants: Implications for water balance, performance and plant–plant interactions. Oecologia 95, 565–574.
Hydraulic lift and water use by plants: Implications for water balance, performance and plant–plant interactions.Crossref | GoogleScholarGoogle Scholar |

Didelot F, Brun L, Parisi L (2007) Effects of cultivar mixtures on scab control in apple orchards. Plant Pathology 56, 1014–1022.
Effects of cultivar mixtures on scab control in apple orchards.Crossref | GoogleScholarGoogle Scholar |

Dixon RK, Winjum JK, Andrasko KJ, Lee JJ, Schroeder PE (1994) Integrated land-use systems: Assessment of promising agroforest and alternative land-use practices to enhance carbon conservation and sequestration. Climatic Change 27, 71–92.
Integrated land-use systems: Assessment of promising agroforest and alternative land-use practices to enhance carbon conservation and sequestration.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaK2cXmvVGmsLw%3D&md5=fa733738897b50c565bdc1c3965c36e2CAS |

Dorion S, Lalonde S (1996) Induction of male sterility in wheat by meiotic-stage water deficit is preceded by a decline in invertase activity and changes in carbohydrate metabolism in anthers. Plant Physiology 111, 137–145.

Doyle A, McLeod R, Wong P, Hetherington S, Southwell R (1987) Evidence for the involvement of the root lesion nematode Pratylenchus thornei in wheat yield decline in northern New South Wales. Animal Production Science 27, 563–570.
Evidence for the involvement of the root lesion nematode Pratylenchus thornei in wheat yield decline in northern New South Wales.Crossref | GoogleScholarGoogle Scholar |

Ellis MH, Rebetzke GJ, Chandler P, Bonnett D, Spielmeyer W, Richards RA (2004) The effect of different height reducing genes on the early growth of wheat. Functional Plant Biology 31, 583–589.
The effect of different height reducing genes on the early growth of wheat.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2cXmvVWqt70%3D&md5=f52e3f46d3b217c78065b2e1590fe33dCAS |

Essah SYC, Stoskopf NC (2002) Mixture performance of phenotypically contrasting barley cultivars. Canadian Journal of Plant Science 82, 1–6.
Mixture performance of phenotypically contrasting barley cultivars.Crossref | GoogleScholarGoogle Scholar |

Fang Y, Xu B, Liu L, Gu Y, Liu Q, Turner NC, Li FM (2014) Does a mixture of old and modern winter wheat cultivars increase yield and water use efficiency in water-limited environments? Field Crops Research 156, 12–21.
Does a mixture of old and modern winter wheat cultivars increase yield and water use efficiency in water-limited environments?Crossref | GoogleScholarGoogle Scholar |

Faraji J (2011) Wheat cultivar blends: A step forward to sustainable agriculture. African Journal of Agricultural Research 6, 6780–6789.

Farooq M, Flower KC, Jabran K, Wahid A, Siddique KHM (2011) Crop yield and weed management in rainfed conservation agriculture. Soil & Tillage Research 117, 172–183.
Crop yield and weed management in rainfed conservation agriculture.Crossref | GoogleScholarGoogle Scholar |

Fereres E, Goldhamer DA, Parsons LR (2003) Irrigation water management of horticultural crops. HortScience 38, 1036–1042.

Finckh MR, Mundt CC (1992) Plant competition and disease in genetically diverse wheat populations. Oecologia 91, 82–92.
Plant competition and disease in genetically diverse wheat populations.Crossref | GoogleScholarGoogle Scholar |

Finckh MR, Mundt CC (1996) Temporal dynamics of plant competition in genetically diverse wheat populations in the presence and absence of stripe rust. Journal of Applied Ecology 33, 1041–1052.
Temporal dynamics of plant competition in genetically diverse wheat populations in the presence and absence of stripe rust.Crossref | GoogleScholarGoogle Scholar |

Finckh MR, de Vallavieille-Pope C, Wolfe MS, Gacek ES, Goyeau H, Lannou C, Merz U, Mundt CC, Munk L, Nadziak J, Newton AC (2000) Cereal variety and species mixtures in practice, with emphasis on disease resistance. Agronomie 20, 813–837.
Cereal variety and species mixtures in practice, with emphasis on disease resistance.Crossref | GoogleScholarGoogle Scholar |

Fleury D, Jefferies S, Kuchel H, Langridge P (2010) Genetic and genomic tools to improve drought tolerance in wheat. Journal of Experimental Botany 61, 3211–3222.
Genetic and genomic tools to improve drought tolerance in wheat.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC3cXptVymsLc%3D&md5=a4fdef0252b26f9da794d601a61d6c38CAS | 20525798PubMed |

French RJ, Schultz JE (1984) Water use efficiency of wheat in a Mediterranean-type environment. II. Some limitations to efficiency. Australian Journal of Agricultural Research 35, 765
Water use efficiency of wheat in a Mediterranean-type environment. II. Some limitations to efficiency.Crossref | GoogleScholarGoogle Scholar |

Frey KJ, Maldonado U (1967) Relative productivity of homogeneous and heterogeneous oat cultivars in optimum and suboptimum environments. Crop Science 7, 532–535.
Relative productivity of homogeneous and heterogeneous oat cultivars in optimum and suboptimum environments.Crossref | GoogleScholarGoogle Scholar |

Fu J, Huang B (2001) Involvement of antioxidants and lipid peroxidation in the adaptation of two cool-season grasses to localized drought stress. Environmental and Experimental Botany 45, 105–114.
Involvement of antioxidants and lipid peroxidation in the adaptation of two cool-season grasses to localized drought stress.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD3MXitF2msrg%3D&md5=ef90b3dfd2ec7533ac2e0ffea6089750CAS | 11275219PubMed |

Fukai S, Trenbath BR (1993) Processes determining intercrop productivity and yields of component crops. Field Crops Research 34, 247–271.

Gallandt ER, Dofing SM, Reisenauer PE, Donaldson E (2001) Diallel analysis of cultivar mixtures in winter wheat. Crop Science 41, 792–796.
Diallel analysis of cultivar mixtures in winter wheat.Crossref | GoogleScholarGoogle Scholar |

Garcia-Barrios L (2003) Plant–plant interactions in tropical agriculture. Tropical Agroecosystems 11–58.

Garrett KA, Mundt CC (1999) Epidemiology in mixed host populations. Phytopathology 89, 984–990.
Epidemiology in mixed host populations.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BD1cjjsl2nuw%3D%3D&md5=42ce1437fca2adbbfb5786289c223959CAS | 18944652PubMed |

Gasperini D, Greenland A, Hedden P, Dreos R, Harwood W, Griffiths S (2012) Genetic and physiological analysis of Rht8 in bread wheat: an alternative source of semi-dwarfism with a reduced sensitivity to brassinosteroids. Journal of Experimental Botany 63, 4419–4436.

Gómez JAA, Bellon MR, Smale M (2000) A regional analysis of maize biological diversity in Southeastern Guanajuato, Mexico. Economic Botany 54, 60–72.
A regional analysis of maize biological diversity in Southeastern Guanajuato, Mexico.Crossref | GoogleScholarGoogle Scholar |

Gomez-Macpherson H, Richards R (1995) Effect of sowing time on yield and agronomic characteristics of wheat in south-eastern Australia. Crop & Pasture Science 46, 1381–1399.
Effect of sowing time on yield and agronomic characteristics of wheat in south-eastern Australia.Crossref | GoogleScholarGoogle Scholar |

Gowda VRP, Henry A, Yamauchi A, Shashidhar HE, Serraj R (2011) Root biology and genetic improvement for drought avoidance in rice. Field Crops Research 122, 1–13.
Root biology and genetic improvement for drought avoidance in rice.Crossref | GoogleScholarGoogle Scholar |

Gupta AK, Virk DS (1984) Intergenotypic competition in mechanical mixtures of bread wheat. Crop Improvement 11, 25–29.

Hajjar R, Jarvis DI, Gemmill-Herren B (2008) The utility of crop genetic diversity in maintaining ecosystem services. Agriculture, Ecosystems & Environment 123, 261–270.
The utility of crop genetic diversity in maintaining ecosystem services.Crossref | GoogleScholarGoogle Scholar |

Hariri D, Fouchard M, Prud’homme H (2001) Incidence of soil-borne wheat mosaic virus in mixtures of susceptible and resistant wheat cultivars. European Journal of Plant Pathology 107, 625–631.
Incidence of soil-borne wheat mosaic virus in mixtures of susceptible and resistant wheat cultivars.Crossref | GoogleScholarGoogle Scholar |

Harris PM (1990) Potato crop radiation use: A justification for intercropping. Field Crops Research 25, 25–39.
Potato crop radiation use: A justification for intercropping.Crossref | GoogleScholarGoogle Scholar |

Huang C, Sun ZY, Wang HG, Luo Y, Ma ZH (2012) Effects of wheat cultivar mixtures on stripe rust: A meta-analysis on field trials. Crop Protection 33, 52–58.
Effects of wheat cultivar mixtures on stripe rust: A meta-analysis on field trials.Crossref | GoogleScholarGoogle Scholar |

Hucl P (1998) Response to weed control by four spring wheat genotypes differing in competitive ability. Canadian Journal of Plant Science 78, 171–173.
Response to weed control by four spring wheat genotypes differing in competitive ability.Crossref | GoogleScholarGoogle Scholar |

Huel DG, Hucl P (1996) Genotypic variation for competitive ability in spring wheat. Plant Breeding 115, 325–329.
Genotypic variation for competitive ability in spring wheat.Crossref | GoogleScholarGoogle Scholar |

Hughes AR, John JS (2004) Genetic diversity enhances the resistance of a seagrass ecosystem to disturbance. Proceedings of the National Academy of Sciences of the United States of America 101, 8998–9002.
Genetic diversity enhances the resistance of a seagrass ecosystem to disturbance.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2cXltlWqs7Y%3D&md5=ffbe61c9c1355498b75d880d2529dae7CAS | 15184681PubMed |

Hughes AR, Inouye BD, Johnson MT, Underwood N, Vellend M (2008) Ecological consequences of genetic diversity. Ecology Letters 11, 609–623.
Ecological consequences of genetic diversity.Crossref | GoogleScholarGoogle Scholar | 18400018PubMed |

Idziak R, Michalski T, Osiecka B (2007) Zachwaszczenie i plonowanie mieszanek jeczmienia jarego z owsem w warunkach zroznicowanej ochrony chemicznej. Zeszyty Problemowe Postępów Nauk Rolniczych 516, 55–63.

Jackson LF, Wennig RW (1997) Use of wheat cultivar blends to improve grain yield and quality and reduce disease and lodging. Field Crops Research 52, 261–269.
Use of wheat cultivar blends to improve grain yield and quality and reduce disease and lodging.Crossref | GoogleScholarGoogle Scholar |

James C (2009) ‘Brief 41: Global status of commercialized biotech/GM crops: 2009.’ (International Service for the Acquisition of Agri-biotech Applications: Ithaca, NY, USA)

James Cook R (2003) Take-all of wheat. Physiological and Molecular Plant Pathology 62, 73–86.
Take-all of wheat.Crossref | GoogleScholarGoogle Scholar |

Jedel PE, Helm JH, Burnett PA (1998) Yield, quality and stress tolerance of barley mixtures in central Alberta. Canadian Journal of Plant Science 78, 429–436.
Yield, quality and stress tolerance of barley mixtures in central Alberta.Crossref | GoogleScholarGoogle Scholar |

Ji XM, Shiran B, Wan JL, Lewis DC, Jenkins CLD, Condon AG, Richards RA, Dolferus R (2010) Importance of pre-anthesis anther sink strength for maintenance of grain number during reproductive stage water stress in wheat. Plant, Cell & Environment 33, 926–942.
Importance of pre-anthesis anther sink strength for maintenance of grain number during reproductive stage water stress in wheat.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC3cXnvVagsb4%3D&md5=7149ccfbec04b94f6c3be0472bd77bbbCAS |

Johns T, Sthapit BR (2004) Biocultural diversity in the sustainability of developing-country food systems. Food and Nutrition Bulletin 25, 143–155.

Johnson DJ (2001) Reduction of yield losses from Rhizoctonia crown and root rot by use of mixtures of resistant and susceptible sugarbeet varieties. In ‘31st Biennial Meeting (Agriculture) of the American Society of Sugar Beet Technologists’. 28 February–3 March 2001, Vancouver, BC, Canada. (American Society of Sugar Beet Technologists: Denver, CO, USA)

Kalinina O, Zeller SL, Schmid B (2011) Competitive performance of transgenic wheat resistant to powdery mildew. PLoS One 6, e28091
Competitive performance of transgenic wheat resistant to powdery mildew.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC3MXhs1ensL3M&md5=183943ab6596e742d94fa15b92e0035dCAS | 22132219PubMed |

Kaut E, Mason E, Navabi A, O’Donovan T, Spaner D (2008) Organic and conventional management of mixtures of wheat and spring cereals. Agronomy for Sustainable Development 28, 363–371.
Organic and conventional management of mixtures of wheat and spring cereals.Crossref | GoogleScholarGoogle Scholar |

Kaut AHEE, Mason HE, Navabi A, O’Donovan JT, Spaner D (2009) Performance and stability of performance of spring wheat variety mixtures in organic and conventional management systems in western Canada. The Journal of Agricultural Science 147, 141
Performance and stability of performance of spring wheat variety mixtures in organic and conventional management systems in western Canada.Crossref | GoogleScholarGoogle Scholar |

Keesing F, Holt RD, Ostfeld RS (2006) Effects of species diversity on disease risk. Ecology Letters 9, 485–498.
Effects of species diversity on disease risk.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BD283jsFKmtA%3D%3D&md5=39d69d46a515f735303d922a98abde18CAS | 16623733PubMed |

Khalifa M, Qualset C (1974) Intergenotypic competition between tall and dwarf wheats. I. In mechanical mixtures. Crop Science 14, 795–799.
Intergenotypic competition between tall and dwarf wheats. I. In mechanical mixtures.Crossref | GoogleScholarGoogle Scholar |

Khoramivafa M, Faraji J (2012) Evaluation of wheat cultivars blends under rainfed condition. American Journal of Scientific Research 47–55.

Kiær LP, Skovgaard IM, Østergård H (2009) Grain yield increase in cereal variety mixtures: A meta-analysis of field trials. Field Crops Research 114, 361–373.
Grain yield increase in cereal variety mixtures: A meta-analysis of field trials.Crossref | GoogleScholarGoogle Scholar |

Kiær LP, Skovgaard IM, Østergård H (2012) Effects of inter-varietal diversity, biotic stresses and environmental productivity on grain yield of spring barley variety mixtures. Euphytica 185, 123–138.
Effects of inter-varietal diversity, biotic stresses and environmental productivity on grain yield of spring barley variety mixtures.Crossref | GoogleScholarGoogle Scholar |

Kimber RWL (1967) Phytotoxicity from plant residues. I. The influence of rotted wheat straw on seedling growth. Australian Journal of Agricultural Research 18, 361
Phytotoxicity from plant residues. I. The influence of rotted wheat straw on seedling growth.Crossref | GoogleScholarGoogle Scholar |

Kirkegaard JA, Simpfendorfer S, Holland J, Bambach R, Moore KJ, Rebetzke GJ (2004) Effect of previous crops on crown rot and yield of durum and bread wheat in northern NSW. Australian Journal of Agricultural Research 55, 321–334.
Effect of previous crops on crown rot and yield of durum and bread wheat in northern NSW.Crossref | GoogleScholarGoogle Scholar |

Klein TA, Burgess LW, Ellison FW (1991) The Incidence and spatial patterns of wheat plants infected by Fusarium graminearum group-1 and the effect of crown rot on yield. Australian Journal of Agricultural Research 42, 399–407.
The Incidence and spatial patterns of wheat plants infected by Fusarium graminearum group-1 and the effect of crown rot on yield.Crossref | GoogleScholarGoogle Scholar |

Knauft DA, Gorbet DW (1991) Agromonic performance and genetic shifts of genotype mixtures in peanut. Euphytica 52, 85–90.

Koizumi S (2001) Rice blast control with multilines in Japan. In ‘Exploiting biodiversity for sustainable pest management’. (Eds TW Mew, E Borrmeo, B Hardy) pp. 143–157. (International Rice Research Institute: Manila)

Kølster P, Munk L, Stølen O, Løhde J (1986) Near-isogenic barley lines with genes for resistance to powdery mildew. Crop Science 26, 903–907.

Kotowska AM, Cahill JF, Keddie BA (2010) Plant genetic diversity yields increased plant productivity and herbivore performance. Journal of Ecology 98, 237–245.
Plant genetic diversity yields increased plant productivity and herbivore performance.Crossref | GoogleScholarGoogle Scholar |

Kumar J, Schäfer P, Hückelhoven R, Langen G, Baltruschat H, Stein E, Nagarajan S, Kogel KH (2002) Bipolaris sorokiniana, a cereal pathogen of global concern: cytological and molecular approaches towards better control. Molecular Plant Pathology 3, 185–195.
Bipolaris sorokiniana, a cereal pathogen of global concern: cytological and molecular approaches towards better control.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD38XmvFChsrg%3D&md5=b9e4f701431f46bbd58c315b192da7bdCAS | 20569326PubMed |

Lemerle D, Verbeek B, Cousens RD, Coombes NE (1996) The potential for selecting wheat varieties strongly competitive against weeds. Weed Research 36, 505–513.
The potential for selecting wheat varieties strongly competitive against weeds.Crossref | GoogleScholarGoogle Scholar |

Liste H-H, White JC (2008) Plant hydraulic lift of soil water—implications for crop production and land restoration. Plant and Soil 313, 1–17.
Plant hydraulic lift of soil water—implications for crop production and land restoration.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD1cXhtlyjsLbM&md5=4b4afb690994faadadbebaf79c6c6409CAS |

Lopes MS, Reynolds MP (2012) Stay-green in spring wheat can be determined by spectral reflectance measurements (normalized difference vegetation index) independently from phenology. Journal of Experimental Botany 63, 3789–3798.
Stay-green in spring wheat can be determined by spectral reflectance measurements (normalized difference vegetation index) independently from phenology.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC38XhtVSht7jI&md5=99eb9014f3bd7fca727f3dbfd6ae6a4dCAS | 22412185PubMed |

Machado S, Petrie S, Rhinhart K, Qu A (2007) Long-term continuous cropping in the Pacific Northwest: Tillage and fertilizer effects on winter wheat, spring wheat, and spring barley production. Soil & Tillage Research 94, 473–481.
Long-term continuous cropping in the Pacific Northwest: Tillage and fertilizer effects on winter wheat, spring wheat, and spring barley production.Crossref | GoogleScholarGoogle Scholar |

Mahajan S, Tuteja N (2005) Cold, salinity and drought stresses: an overview. Archives of Biochemistry and Biophysics 444, 139–158.
Cold, salinity and drought stresses: an overview.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2MXht1Olt7fI&md5=2e5fe925924e3e037d86fbdf9d2411a0CAS | 16309626PubMed |

Manthey R, Fehrmann H (1993) Effect of cultivar mixtures in wheat on fungal diseases, yield and profitability. Crop Protection 12, 63–68.
Effect of cultivar mixtures in wheat on fungal diseases, yield and profitability.Crossref | GoogleScholarGoogle Scholar |

Mason H, Goonewardene L, Spaner D (2008) Competitive traits and the stability of wheat cultivars in differing natural weed environments on the northern Canadian Prairies. The Journal of Agricultural Science 146, 21–33.
Competitive traits and the stability of wheat cultivars in differing natural weed environments on the northern Canadian Prairies.Crossref | GoogleScholarGoogle Scholar |

Mengistu N, Baenziger PS, Nelson LA, Eskridge KM, Klein RN, Baltensperger DD, Elmore RW (2010) Grain yield performance and stability of cultivar blends vs. component cultivars of hard winter wheat in Nebraska. Crop Science 50, 617–623.
Grain yield performance and stability of cultivar blends vs. component cultivars of hard winter wheat in Nebraska.Crossref | GoogleScholarGoogle Scholar |

Merz U, Valenghi D (1997) Extenso production and cereal mixtures in Switzerland. Variety Mixtures in theory and practice. In ‘European Union Variety and Species Mixtures Working Group of COST Action’. (Ed. MS Wolfe) 817.

Mille B, Fraj MB, Monod H, de Vallavieille-Pope C (2006) Assessing four-way mixtures of winter wheat cultivars from the performances of their two-way and individual components. European Journal of Plant Pathology 114, 163–173.
Assessing four-way mixtures of winter wheat cultivars from the performances of their two-way and individual components.Crossref | GoogleScholarGoogle Scholar |

Misra S, Randive R, Rao V, Sheshshayee M, Serraj R, Monneveux P (2006) Relationship between carbon isotope discrimination, ash content and grain yield in wheat in the Peninsular Zone of India. Journal of Agronomy & Crop Science 192, 352–362.
Relationship between carbon isotope discrimination, ash content and grain yield in wheat in the Peninsular Zone of India.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD28XhtFOrsbzN&md5=bb4ac5446cff6c164bc3ed15407d5629CAS |

Mitter V, Zhang MC, Liu CJ, Ghosh R, Ghosh M, Chakraborty S (2006) A high‐throughput glasshouse bioassay to detect crown rot resistance in wheat germplasm. Plant Pathology 55, 433–441.
A high‐throughput glasshouse bioassay to detect crown rot resistance in wheat germplasm.Crossref | GoogleScholarGoogle Scholar |

Monneveux P, Reynolds MP, Trethowan R, González-Santoyo H, Peña RJ, Zapata F (2005) Relationship between grain yield and carbon isotope discrimination in bread wheat under four water regimes. European Journal of Agronomy 22, 231–242.
Relationship between grain yield and carbon isotope discrimination in bread wheat under four water regimes.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2MXmtlGgtQ%3D%3D&md5=12f78af252fbfd292e5a39f0ff6392c0CAS |

Moreno LL, Tuxill J, Moo EY, Reyes LA, Alejo JC, Jarvis DI (2006) Traditional maize storage methods of Mayan farmers in Yucatan, Mexico: implications for seed selection and crop diversity. Biodiversity and Conservation 15, 1771–1795.
Traditional maize storage methods of Mayan farmers in Yucatan, Mexico: implications for seed selection and crop diversity.Crossref | GoogleScholarGoogle Scholar |

Moreno-Ruiz G (1990) ‘The variety Colombia: A variety of coffee with resistance to rust (Hemileia vastatrix Berk. & Br.).’ (Centro Nacional de Investigaciones de Cafe: Brazil)

Mundt C (1994) Use of host genetic diversity to control cereal diseases: implications for rice blast. In ‘Rice blast disease’. (Eds RS Ziegler, SA Leong, PS Teng) pp. 293–307. (CAB International: Wallingford, UK)

Mundt CC (2002) Use of multiline cultivars and cultivar mixtures for disease management. Annual Review of Phytopathology 40, 381–410.
Use of multiline cultivars and cultivar mixtures for disease management.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD38Xos1Cltbk%3D&md5=776af953976f8d1b488325a44d441c3dCAS | 12147765PubMed |

Mundt CC, Brophy LS, Schmitt MS (1995) Choosing crop cultivars and cultivar mixtures under low versus high disease pressure: A case study with wheat. Crop Protection 14, 509–515.
Choosing crop cultivars and cultivar mixtures under low versus high disease pressure: A case study with wheat.Crossref | GoogleScholarGoogle Scholar |

Munk L, Cooke BM (Eds) (1998) Variety mixtures: 19 years of experience in Denmark. In ‘Airborne pathogens on cereals: population studies of airborne pathogens on cereals as a means of improving strategies for disease control’. 18421, 19–20.

Murray GM, Brennan JP (2009) Estimating disease losses to the Australian wheat industry. Australasian Plant Pathology 38, 558–570.
Estimating disease losses to the Australian wheat industry.Crossref | GoogleScholarGoogle Scholar |

NASS (2008) Wheat varieties. National Agriculture Statistics Service. United States Department of Agriculture. Available at: www.nass.usda.gov/Statistics_by_Subject/index.php?sector=CROPS

Naudin C, Corre-Hellou G, Pineau S, Crozat Y, Jeuffroy MH (2011) The effect of various dynamics of N availability on winter pea-wheat intercrops: Crop growth, N partitioning and symbiotic N2 fixation (vol 119, pg 2, 2010). Field Crops Research 120, 201–202.
The effect of various dynamics of N availability on winter pea-wheat intercrops: Crop growth, N partitioning and symbiotic N2 fixation (vol 119, pg 2, 2010).Crossref | GoogleScholarGoogle Scholar |

Newton A, Thomas W (1991) The effect of specific and non-specific resistance in mixtures of barley or genotypes on infection by mildew (Erysiphe graminis f. sp. hordei) and on yield. Euphytica 59, 73–81.

Newton AC, Ellis RP, Hackett CA, Guy DC (1997) The effect of component number on Rhynchosporium secalis infection and yield in mixtures of winter barley cultivars. Plant Pathology 46, 930–938.
The effect of component number on Rhynchosporium secalis infection and yield in mixtures of winter barley cultivars.Crossref | GoogleScholarGoogle Scholar |

Newton AC, Swanston JS, Guy DC, Ellis RP (1998) The effect of cultivar mixtures on malting quality in winter barley. Journal of the Institute of Brewing 104, 41–45.

Newton AC, Guy DC, Nadzik J, Gacek ES (2002) The effect of inoculums pressure, germplasm selection and environment on spring barley cultivar mixtures efficiency. Euphytica 125, 325–335.
The effect of inoculums pressure, germplasm selection and environment on spring barley cultivar mixtures efficiency.Crossref | GoogleScholarGoogle Scholar |

Nicol JM, Ortiz-Monasterio I (2004) Effects of the root-lesion nematode, Pratylenchus thornei, on wheat yields in Mexico. Nematology 6, 485–493.
Effects of the root-lesion nematode, Pratylenchus thornei, on wheat yields in Mexico.Crossref | GoogleScholarGoogle Scholar |

Nitzsche W, Hesselbach J (1983) Sortenmischungen statt Viellinien-Sorten 1. Sommergerste. Journal of Plant Breeding (Z. Pflanzenzuecht) 90, 68–74.

Okonya JS, Maass BL (2014) Potential of cowpea variety mixtures to increase yield stability in subsistence agriculture: Preliminary results. International Journal of Agronomy 2014, 515629
Potential of cowpea variety mixtures to increase yield stability in subsistence agriculture: Preliminary results.Crossref | GoogleScholarGoogle Scholar |

Østergård H, Backes G (2006) Changes in variety composition in spring barley mixtures over years. In ‘Workshop on Cereal crop diversity: Implications for production and products’. p. 69.

Passioura JB (2006) The perils of pot experiments. Functional Plant Biology 33, 1075–1079.
The perils of pot experiments.Crossref | GoogleScholarGoogle Scholar |

Peltonensainio P, Karjalainen R (1991) Agronomic evaluation of oat cultivar mixtures under various stress conditions in Finland. Acta Agricuturae Scandinavica 41, 47–53.
Agronomic evaluation of oat cultivar mixtures under various stress conditions in Finland.Crossref | GoogleScholarGoogle Scholar |

Peltonensainio P, Makela P (1995) Comparison of the physiological methods to assess drought tolerance in oats. Acta Agriculturae Scandinavica Section B—Soil and Plant Science 45, 32–38.

Quénéhervé P, Tixier P, Barrière V, Salmon F, Houdin F, Achard R, Gertrude J-C, Marie-Luce S, Chabrier C, Duyck P-F (2011) Effect of banana crop mixtures on the plant-feeding nematode community. Applied Soil Ecology 49, 40–45.
Effect of banana crop mixtures on the plant-feeding nematode community.Crossref | GoogleScholarGoogle Scholar |

Raboin LM, Ramanantsoanirina A, Dusserre J, Razasolofonanahary F, Tharreau D, Lannou C, Sester M (2012) Two-component cultivar mixtures reduce rice blast epidemics in an upland agrosystem. Plant Pathology 61, 1103–1111.
Two-component cultivar mixtures reduce rice blast epidemics in an upland agrosystem.Crossref | GoogleScholarGoogle Scholar |

Rajaram S (2001) Prospects and promise of wheat breeding in the 21st century. In ‘Wheat in a global environment’. pp. 37–52. (Springer: Berlin, Heidelberg)

Raper CD, Barber SA (1970) Rooting systems of soybeans. 1. Differences in root morphology among cultivars. Agronomy Journal 62, 581–584.
Rooting systems of soybeans. 1. Differences in root morphology among cultivars.Crossref | GoogleScholarGoogle Scholar |

Rebetzke G, Condon A, Richards R, Farquhar G (2002) Selection for reduced carbon isotope discrimination increases aerial biomass and grain yield of rainfed bread wheat. Crop Science 42, 739–745.
Selection for reduced carbon isotope discrimination increases aerial biomass and grain yield of rainfed bread wheat.Crossref | GoogleScholarGoogle Scholar |

Reusch TBH, Ehlers A, Hämmerli A, Worm B (2005) Ecosystem recovery after climatic extremes enhanced by genotypic diversity. Proceedings of the National Academy of Sciences of the United States of America 102, 2826–2831.
Ecosystem recovery after climatic extremes enhanced by genotypic diversity.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2MXitVSksLY%3D&md5=8d9c6d497d8886b646341f233d42904cCAS |

Revilla-Molina IM (2009) ‘Genetic diversity for sustainable rice blast management in China: adoption and impact.’ (Wageningen University: Wageningen, The Netherlands)

Revilla-Molina IM, Bastiaans L, Van Keulen H, Kropff MJ, Hui F, Castilla NP, Mew TW, Zhu YY, Leung H (2009) Does resource complementarity or prevention of lodging contribute to the increased productivity of rice varietal mixtures in Yunnan, China? Field Crops Research 111, 303–307.
Does resource complementarity or prevention of lodging contribute to the increased productivity of rice varietal mixtures in Yunnan, China?Crossref | GoogleScholarGoogle Scholar |

Reynolds M, Manes Y, Izanloo A, Langridge P (2009) Phenotyping approaches for physiological breeding and gene discovery in wheat. Annals of Applied Biology 155, 309–320.
Phenotyping approaches for physiological breeding and gene discovery in wheat.Crossref | GoogleScholarGoogle Scholar |

Richards RA (2006) Physiological traits used in the breeding of new cultivars for water-scarce environments. Agricultural Water Management 80, 197–211.
Physiological traits used in the breeding of new cultivars for water-scarce environments.Crossref | GoogleScholarGoogle Scholar |

Richards JH, Caldwell MM (1987) Hydraulic lift: substantial nocturnal water transport between soil layers by Artemisia tridentata roots. Oecologia 73, 486–489.
Hydraulic lift: substantial nocturnal water transport between soil layers by Artemisia tridentata roots.Crossref | GoogleScholarGoogle Scholar |

Richards R, Passioura J (1989) A breeding program to reduce the diameter of the major xylem vessel in the seminal roots of wheat and its effect on grain yield in rain-fed environments. Crop & Pasture Science 40, 943–950.
A breeding program to reduce the diameter of the major xylem vessel in the seminal roots of wheat and its effect on grain yield in rain-fed environments.Crossref | GoogleScholarGoogle Scholar |

Richards M, Whytock G (1993) Varietal competitiveness with weeds. Aspects of Applied Biology, physiology of varieties 34, 345–354.

Richards RA, Rebetzke GJ, Condon AG, van Herwaarden AF (2002) Breeding opportunities for increasing the efficiency of water use and crop yield in temperate cereals. Crop Science 42, 111–121.
Breeding opportunities for increasing the efficiency of water use and crop yield in temperate cereals.Crossref | GoogleScholarGoogle Scholar | 11756261PubMed |

Rickman R, Klepper B, Belford R (1985) Developmental relationships among roots, leaves and tillers in winter wheat. In ‘Wheat growth and modelling’. pp. 83–98. (Springer: Berlin, Heidelberg)

Rodríguez EE (2006) Effect of cultivar mixture on the competitive ability of barley against weeds. MSc Thesis, Institutionen för vaxtproduktionsekologi Sveriges Lantbruksuniversitet, Uppsala, Sweden.

Rosenow DT, Quisenberry JE, Wendt CW, Clark LE (1983) Drought tolerant sorghum and cotton germplasm. Agricultural Water Management 7, 207–222.
Drought tolerant sorghum and cotton germplasm.Crossref | GoogleScholarGoogle Scholar |

Saini HS, Westgate ME (2000) ‘Reproductive development in grain crops during drought.’ Vol. 68. pp. 59–96. (Elsevier Academic Press Inc.: San Diego, CA, USA)

Sarandon SJ, Sarandon R (1995) Mixture of cultivars: pilot field trial of an ecological alternative to improve production or quality of wheat (Triticum aestivum). Journal of Applied Ecology 32, 288–294.
Mixture of cultivars: pilot field trial of an ecological alternative to improve production or quality of wheat (Triticum aestivum).Crossref | GoogleScholarGoogle Scholar |

Shaalan MI, Heyne EG, Lofgren JR (1966) Mixtures of hard red winter wheat cultivars 1. Agronomy Journal 58, 89–91.
Mixtures of hard red winter wheat cultivars 1.Crossref | GoogleScholarGoogle Scholar |

Shoffner AV, Tooker JF (2013) The potential of genotypically diverse cultivar mixtures to moderate aphid populations in wheat (Triticum aestivum L.). Arthropod-Plant Interactions 7, 33–43.
The potential of genotypically diverse cultivar mixtures to moderate aphid populations in wheat (Triticum aestivum L.).Crossref | GoogleScholarGoogle Scholar |

Singh S, Gupta AK, Kaur N (2012) Differential responses of antioxidative defence system to long-term field drought in wheat (Triticum aestivum L.) genotypes differing in drought tolerance. Journal of Agronomy & Crop Science 198, 185–195.
Differential responses of antioxidative defence system to long-term field drought in wheat (Triticum aestivum L.) genotypes differing in drought tolerance.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC38XhtVGgs77O&md5=99e9fa57a09dba3fc17aa4644bdb5d42CAS |

Smale M, Bellon MR, Jarvis D, Sthapit B (2004) Economic concepts for designing policies to conserve crop genetic resources on farms. Genetic Resources and Crop Evolution 51, 121–135.
Economic concepts for designing policies to conserve crop genetic resources on farms.Crossref | GoogleScholarGoogle Scholar |

Smiley RW (2009) Root-lesion nematodes reduce yield of intolerant wheat and barley. Agronomy Journal 101, 1322–1335.
Root-lesion nematodes reduce yield of intolerant wheat and barley.Crossref | GoogleScholarGoogle Scholar |

Smithson JB, Lenne JM (1996) Varietal mixtures: A viable strategy for sustainable productivity in subsistence agriculture. Annals of Applied Biology 128, 127–158.
Varietal mixtures: A viable strategy for sustainable productivity in subsistence agriculture.Crossref | GoogleScholarGoogle Scholar |

Somerville C, Briscoe J (2001) Genetic engineering and water. Science 292, 2217
Genetic engineering and water.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD3MXks1ylsb0%3D&md5=4b586ab9a9e52077fdbfb279fc5a68efCAS | 11423621PubMed |

Spano G, Di Fonzo N, Perrotta C, Platani C, Ronga G, Lawlor DW, Napier JA, Shewry PR (2003) Physiological characterization of ‘stay green’ mutants in durum wheat. Journal of Experimental Botany 54, 1415–1420.
Physiological characterization of ‘stay green’ mutants in durum wheat.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD3sXjt1OgsLo%3D&md5=dc31d66884acad4a1801d817f778520aCAS | 12709488PubMed |

Steffenson B, Hayes P, Kleinhofs A (1996) Genetics of seedling and adult plant resistance to net blotch (Pyrenophora teres f. teres) and spot blotch (Cochliobolus sativus) in barley. Theoretical and Applied Genetics 92, 552–558.
Genetics of seedling and adult plant resistance to net blotch (Pyrenophora teres f. teres) and spot blotch (Cochliobolus sativus) in barley.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaK28XltFOjsbg%3D&md5=8204e1c9b5b1c7e42fa0508f7010fc04CAS | 24166322PubMed |

Stephens AE, Gardiner DM, White RG, Munn AL, Manners JM (2008) Phases of infection and gene expression of Fusarium graminearum during crown rot disease of wheat. Molecular Plant-Microbe Interactions: MPMI 21, 1571–1581.
Phases of infection and gene expression of Fusarium graminearum during crown rot disease of wheat.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD1cXhsVaru7fN&md5=f3bc71c83be0bbca718fabd8ccc2d368CAS | 18986253PubMed |

Sthapit B, Rana R, Eyzaguirre P, Jarvis D (2008) The value of plant genetic diversity to resource-poor farmers in Nepal and Vietnam. International Journal of Agricultural Sustainability 6, 148–166.
The value of plant genetic diversity to resource-poor farmers in Nepal and Vietnam.Crossref | GoogleScholarGoogle Scholar |

Stuke F, Fehrmann H (1987) Sortenmischungen im Weizenanbau. Plant Protection (Nachrchtenbl. Dtsch. Pflanzenschutzdienst) 39, 53–57.

Stützel H, Aufhammer W (1989) Effects of winter barley cultivar mixtures on lodging. The Journal of Agricultural Science 112, 47–55.
Effects of winter barley cultivar mixtures on lodging.Crossref | GoogleScholarGoogle Scholar |

Stützel H, Aufhammer W (1990) The physiological causes of mixing effects in cultivar mixtures: A general hypothesis. Agricultural Systems 32, 41–53.
The physiological causes of mixing effects in cultivar mixtures: A general hypothesis.Crossref | GoogleScholarGoogle Scholar |

Swanston JS, Newton AC, Guy DC, Gacek ES (2000) Malting performance of barley cultivar mixtures from the UK and Poland. Journal of the Institute of Brewing 106, 239–244.
Malting performance of barley cultivar mixtures from the UK and Poland.Crossref | GoogleScholarGoogle Scholar |

Sylwia K, Kinga M, Kazimierz A (2013) Cereal mixtures—An effective weed management tool. Journal of Plant Protection Research 53, 364–374.

Thompson JP, Mackenzie J, Amos R (1995) Root-lesion nematode (Pratylenchus thornei) limits response of wheat but not barley to stored soil moisture in the Hermitage long-term tillage experiment. Australian Journal of Experimental Agriculture 35, 1049–1055.
Root-lesion nematode (Pratylenchus thornei) limits response of wheat but not barley to stored soil moisture in the Hermitage long-term tillage experiment.Crossref | GoogleScholarGoogle Scholar |

Thompson JP, Brennan PS, Clewett TG, Sheedy JG, Seymour NP (1999) Progress in breeding wheat for tolerance and resistance to root-lesion nematode. Australasian Plant Pathology 28, 45–52.
Progress in breeding wheat for tolerance and resistance to root-lesion nematode.Crossref | GoogleScholarGoogle Scholar |

Thompson JP, Zwart RS, Butler D (2012) Inheritance of resistance to root-lesion nematodes (Pratylenchus thornei and P. neglectus) in five doubled-haploid populations of wheat. Euphytica 188, 209–219.
Inheritance of resistance to root-lesion nematodes (Pratylenchus thornei and P. neglectus) in five doubled-haploid populations of wheat.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC38Xhs1Gqsr%2FN&md5=a03c45a7a57b3a582f3863d638047cbeCAS |

Tilahun A (1995) Yield gain and risk minimization in maize (Zea mays) through cultivar mixtures in semi-arid zones of the Rift Valley in Ethiopia. Experimental Agriculture 31, 161–168.
Yield gain and risk minimization in maize (Zea mays) through cultivar mixtures in semi-arid zones of the Rift Valley in Ethiopia.Crossref | GoogleScholarGoogle Scholar |

Tobias DJ, Stack RW, Puri KD, Riveland N, Zhong S (2009) Reactions of hard red spring wheat to common root rot under field conditions of Northern United States of America. Euphytica 167, 165–172.
Reactions of hard red spring wheat to common root rot under field conditions of Northern United States of America.Crossref | GoogleScholarGoogle Scholar |

Tooker JF, Frank SD, Steffan-Dewenter I (2012) Genotypically diverse cultivar mixtures for insect pest management and increased crop yields. Journal of Applied Ecology 49, 974–985.
Genotypically diverse cultivar mixtures for insect pest management and increased crop yields.Crossref | GoogleScholarGoogle Scholar |

Tratwal A, Law J, Philpott H, Horwell A, Garner J (2007) The possibilities of reduction of winter barley chemical protection by growing variety mixtures. Part I. Effect on powdery mildew level. Journal of Plant Protection Research 47, 65–77.

Triboï E, Martre P, Triboï-Blondel AM (2003) Environmentally-induced changes in protein composition in developing grains of wheat are related to changes in total protein content. Journal of Experimental Botany 54, 1731–1742.
Environmentally-induced changes in protein composition in developing grains of wheat are related to changes in total protein content.Crossref | GoogleScholarGoogle Scholar | 12773520PubMed |

Tuberosa R, Salvi S (2006) Genomics-based approaches to improve drought tolerance of crops. Trends in Plant Science 11, 405–412.
Genomics-based approaches to improve drought tolerance of crops.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD28Xns1KjurY%3D&md5=4e9771ef5e89af1f789c175facbac4afCAS | 16843036PubMed |

Umezawa T, Fujita M, Fujita Y, Yamaguchi-Shinozaki K, Shinozaki K (2006) Engineering drought tolerance in plants: discovering and tailoring genes to unlock the future. Current Opinion in Biotechnology 17, 113–122.
Engineering drought tolerance in plants: discovering and tailoring genes to unlock the future.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD28Xjs1yit70%3D&md5=975b3b420418e3200ca2b1fb445e81beCAS | 16495045PubMed |

Vilich V (1993) Crop rotation with pure stands and mixtures of barley and wheat to control stem and root rot diseases. Crop Protection 12, 373–379.
Crop rotation with pure stands and mixtures of barley and wheat to control stem and root rot diseases.Crossref | GoogleScholarGoogle Scholar |

Vilich-Meller V (1992) Pseudocercosporella herpotrichoides, Fusarium spp. and Rhizoctonia cerealis stem rot in pure stands and interspecific mixtures of cereals. Crop Protection 11, 45–50.
Pseudocercosporella herpotrichoides, Fusarium spp. and Rhizoctonia cerealis stem rot in pure stands and interspecific mixtures of cereals.Crossref | GoogleScholarGoogle Scholar |

Wardlaw IF, Willenbrink J (2000) Mobilization of fructan reserves and changes in enzyme activities in wheat stems correlate with water stress during kernel filling. New Phytologist 148, 413–422.
Mobilization of fructan reserves and changes in enzyme activities in wheat stems correlate with water stress during kernel filling.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD3MXpvVaksQ%3D%3D&md5=8bf1410613d52354a22877710557a791CAS |

Whitmore AP, Whalley WR (2009) Physical effects of soil drying on roots and crop growth. Journal of Experimental Botany 60, 2845–2857.
Physical effects of soil drying on roots and crop growth.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD1MXosFWjtb8%3D&md5=2af99222fa33bffeac8dc26c0b3b9368CAS | 19584120PubMed |

Wicks G, Ramsel R, Nordquist P, Schmidt J (1986) Impact of wheat cultivars on establishment and suppression of summer annual weeds. Agronomy Journal 78, 59–62.

Wildermuth GB (1986) Geographic distribution of common root rot and Bipolaris sorokiniana in Queensland wheat soils. Australian Journal of Experimental Agriculture 26, 601
Geographic distribution of common root rot and Bipolaris sorokiniana in Queensland wheat soils.Crossref | GoogleScholarGoogle Scholar |

Wildermuth G, McNamara R (1991) Effect of cropping history on soil populations of Bipolaris sorokiniana and common root rot of wheat. Crop & Pasture Science 42, 779–790.
Effect of cropping history on soil populations of Bipolaris sorokiniana and common root rot of wheat.Crossref | GoogleScholarGoogle Scholar |

Wildermuth GB, Tinline RD, McNamara RB (1992) Assessment of yield loss caused by common root-rot in wheat cultivars in Queensland. Australian Journal of Agricultural Research 43, 43–58.
Assessment of yield loss caused by common root-rot in wheat cultivars in Queensland.Crossref | GoogleScholarGoogle Scholar |

Willey RW (1979) ‘Intercropping: Its importance and research needs. Part 1. Competition and yield advantages.’ (Commonwealth Agricultural Bureaux: Wallingford, UK)

Wolfe M (1985) The current status and prospects of multiline cultivars and variety mixtures for disease resistance. Annual Review of Phytopathology 23, 251–273.
The current status and prospects of multiline cultivars and variety mixtures for disease resistance.Crossref | GoogleScholarGoogle Scholar |

Wolfe MS (2000) Crop strength through diversity. Nature 406, 681–682.
Crop strength through diversity.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD3cXmt1Chtrg%3D&md5=d9b84c3331562f3d2327a5bf7647857aCAS | 10963576PubMed |

Wolfe M, Baresel J, Desclaux D, Goldringer I, Hoad S, Kovacs G, Löschenberger F, Miedaner T, Østergård H, Van Bueren EL (2008) Developments in breeding cereals for organic agriculture. Euphytica 163, 323–346.
Developments in breeding cereals for organic agriculture.Crossref | GoogleScholarGoogle Scholar |

Woolhouse ME, Taylor LH, Haydon DT (2001) Population biology of multihost pathogens. Science 292, 1109–1112.
Population biology of multihost pathogens.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD3MXjs1Chtb4%3D&md5=d10e952c3962f7b003aabd9dc67ec03aCAS | 11352066PubMed |

Zeller SL, Kalinina O, Flynn DFB, Schmid B (2012) Mixtures of genetically modified wheat lines outperform monocultures. Ecological Applications 22, 1817–1826.
Mixtures of genetically modified wheat lines outperform monocultures.Crossref | GoogleScholarGoogle Scholar | 23092018PubMed |

Zhou K, Wang G, Li Y, Liu X, Herbert S, Hashemi M (2014a) Assessing variety mixture of continuous spring wheat (Triticum aestivum L.) on grain yield and flour quality in Northeast China. International Journal of Plant Production 8, 91–105.

Zhou KQ, Wang GD, Li YH, Liu XB, Herbert SJ, Hashemi M (2014b) Assessing variety mixture of continuous spring wheat (Triticum aestivum L.) on grain yield and flour quality in Northeast China. International Journal of Plant Plant Production 8, 91–105.

Zhou KQ, Wang GD, Li YH, Liu XB, Herbert SJ, Hashemi M (2014c) Assessing variety mixture of continuous spring wheat (Triticum aestivum L.) on grain yield and flour quality in Northeast China. International Journal of Plant Production 8, 91–105.

Zhu Y, Mew TW, Teng PS, Wang Z, Mundt CC, Chen H, Fan J, Wang Y, Li Y, Chen J, Yang S, Hu L, Leung H (2000) Genetic diversity and disease control in rice. Nature 406, 718–722.
Genetic diversity and disease control in rice.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD3cXmt1Cgt7o%3D&md5=9464622036e81dd6e1192c3e79928559CAS | 10963595PubMed |