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Plant function and evolutionary biology
RESEARCH ARTICLE

Can elevated CO2 combined with high temperature ameliorate the effect of terminal drought in wheat?

Eduardo Dias de Oliveira A B C , Helen Bramley B , Kadambot H. M. Siddique B , Samuel Henty A , Jens Berger A and Jairo A. Palta A C D
+ Author Affiliations
- Author Affiliations

A CSIRO Plant Industry, Private Bag No 5, Wembley, WA 6913, Australia.

B The UWA Institute of Agriculture (M082), The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia.

C School of Plant Biology, Faculty of Natural and Agricultural Sciences, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia.

D Corresponding author. Email: jairo.palta@csiro.au

Functional Plant Biology 40(2) 160-171 https://doi.org/10.1071/FP12206
Submitted: 24 April 2012  Accepted: 26 September 2012   Published: 23 November 2012

Abstract

Wheat (Triticum aestivum L.) production may be affected by the future climate, but the impact of the combined increases in atmospheric CO2 concentration, temperature and incidence of drought that are predicted has not been evaluated. The combined effect of elevated CO2, high temperature and terminal drought on biomass accumulation and grain yield was evaluated in vigorous (38–19) and nonvigorous (Janz) wheat genotypes grown under elevated CO2 (700 µL L–1) combined with temperatures 2°C, 4°C and 6°C above the current ambient temperature. Terminal drought was induced in all combinations at anthesis in a split-plot design to test whether the effect of elevated CO2 combined with high temperature ameliorates the negative effects of terminal drought on biomass accumulation and grain yield. Biomass and grain yield were enhanced under elevated CO2 with 2°C above the ambient temperature, regardless of the watering regimen. The combinations of elevated CO2 plus 4°C or 6°C above the ambient temperature did not enhance biomass and grain yield, but tended to decrease them. The reductions in biomass and grain yield (45–50%) caused by terminal drought were less severe (21–28%) under elevated CO2 with 2°C above the ambient temperature. The amelioration resulted from a 63% increase in the rate of leaf net photosynthesis in 38–19 and a 39% increase in tillering and leaf area in Janz. The contrasting responses and phenological development of these two genotypes to the combination of elevated CO2, temperature and terminal drought, and the possible influences on their source–sink relationships are discussed.

Additional keywords: climate change, genetic traits for vigorous growth, leaf photosynthesis, source–sink relationships, tillering, tunnel houses.


References

Australian Bureau of Agricultural Resources, Economics and Sciences (ABARES) (2012) Australian crop report, February 2012, No. 161. (ABARES: Canberra) Available at http://adl.brs.gov.au/data/warehouse/aucrpd9abcc003/aucrpd9abcc003201202/ACR12.1_Feb_rev1.0.0.pdf [Verified 30 October 2012].

Aranjuelo I, Cabrera-Bosquet L, Morcuende R, Avice JC, Nogues S, Araus JL, Martinez-Carrasco R, Perez P (2011) Does ear C sink strength contribute to overcoming photosynthetic acclimation of wheat plants exposed to elevated CO2? Journal of Experimental Botany 62, 3957–3969.
Does ear C sink strength contribute to overcoming photosynthetic acclimation of wheat plants exposed to elevated CO2?Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC3MXptFCqurw%3D&md5=6081a971b01e4dcea9932785d1fa4494CAS |

Asseng S, Foster I, Turner NC (2011) The impact of temperature variability on wheat yields. Global Change Biology 17, 997–1012.
The impact of temperature variability on wheat yields.Crossref | GoogleScholarGoogle Scholar |

Austin RB (1990) Prospects for genetically increasing the photosynthetic capacity of crops In ‘Perspectives in biochemical and genetic regulation of photosynthesis’. Vol. 1. (Ed. Y Zelith) pp. 395–409. (Alan R. Liss: New York)

Baker JT (2004) Yield responses of southern US rice cultivars to CO2 and temperature. Agricultural and Forest Meteorology 122, 129–137.
Yield responses of southern US rice cultivars to CO2 and temperature.Crossref | GoogleScholarGoogle Scholar |

Batts GR, Morison JKL, Ellis RH, Hadley P, Wheeler TR (1997) Effects of CO2 and temperature on growth and yield of crops of winter wheat over four seasons. In ‘Developments in crop science’. Vol. 25. (Eds MK van Ittersum, SC van de Geijn.) pp. 67–76. (Elsevier: Amsterdam)

Brennan PS, Martin DJ, Eisemann RL, Mason LR, Sheppard JA, Norris RG, Smith GD, The D, Keys PJ (1991) Register of Australian winter cereal cultivars: Triticum aestivum ssp. vulgare (bread wheat) cv. Janz. Australian Journal of Experimental Agriculture 31, 727
Register of Australian winter cereal cultivars: Triticum aestivum ssp. vulgare (bread wheat) cv. Janz.Crossref | GoogleScholarGoogle Scholar |

Batts GR, Ellis RH, Morison JIL, Nkemka PN, Gregory PJ, Hadley P (1998) Yield and partitioning in crops of contrasting cultivars of winter wheat in response to CO2 and temperature in field studies using temperature gradient tunnels. The Journal of Agricultural Science 130, 17–27.
Yield and partitioning in crops of contrasting cultivars of winter wheat in response to CO2 and temperature in field studies using temperature gradient tunnels.Crossref | GoogleScholarGoogle Scholar |

Bunce JA (1998) The temperature dependence of the stimulation of photosynthesis by elevated carbon dioxide in wheat and barley. Journal of Experimental Botany 49, 1555–1561.

Bunce JA (2000) Responses of stomatal conductance to light, humidity and temperature in winter wheat and barley grown at three concentrations of carbon dioxide in the field. Global Change Biology 6, 371–382.
Responses of stomatal conductance to light, humidity and temperature in winter wheat and barley grown at three concentrations of carbon dioxide in the field.Crossref | GoogleScholarGoogle Scholar |

Chaudhuri UN, Kirkham MB, Kanemasu ET (1990) Root growth of winter wheat under elevated carbon dioxide and drought. Crop Science 30, 853–857.
Root growth of winter wheat under elevated carbon dioxide and drought.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaK3cXls12ju7o%3D&md5=8ddc565033a0e4f79d05f1e4301ccbffCAS |

Drake BG, Gonzàlez-Meler MA, Long SP (1997) More efficient plants: a consequence of rising atmospheric CO2? Annual Review of Plant Physiology and Plant Molecular Biology 48, 609–639.
More efficient plants: a consequence of rising atmospheric CO2?Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaK2sXjs1eltbY%3D&md5=2e9c3e2906f00bad33e3227847d433beCAS |

Ehdaie B, Merhaut DJ, Ahmadian S, Hoops AC, Khuong T, Layne AP, Waines JG (2010) Root system size influences water-nutrient uptake and nitrate leaching potential in wheat. Journal of Agronomy and Crop Science 196, 455–466.
Root system size influences water-nutrient uptake and nitrate leaching potential in wheat.Crossref | GoogleScholarGoogle Scholar |

Evans LT (1978) The influence of irradiance before and after anthesis on grain yield and its components in microcrops of wheat grown in a constant daylength and temperature regime. Field Crops Research 1, 5–19.
The influence of irradiance before and after anthesis on grain yield and its components in microcrops of wheat grown in a constant daylength and temperature regime.Crossref | GoogleScholarGoogle Scholar |

Ewert F, Porter JR (2000) Ozone effects on wheat in relation to CO2: modelling short-term and long-term responses of leaf photosynthesis and leaf duration. Global Change Biology 6, 735–750.
Ozone effects on wheat in relation to CO2: modelling short-term and long-term responses of leaf photosynthesis and leaf duration.Crossref | GoogleScholarGoogle Scholar |

Ferris R, Ellis RH, Wheeler TR, Hadley P (1998) Effect of high temperature stress at anthesis on grain yield and biomass of field-grown crops of wheat. Annals of Botany 82, 631–639.
Effect of high temperature stress at anthesis on grain yield and biomass of field-grown crops of wheat.Crossref | GoogleScholarGoogle Scholar |

Fitzpatrick, EA (1970) The expectancy of deficient winter rainfall and the potential for severe drought in the southwest of Western Australia. In ‘Miscellaneous Publication’ Vol. 70/1. pp. 37. (The University of Western Australia, Institute of Agriculture, Agronomy Dept: Perth)

Forster P, Ramaswamy V, Artaxo P, Berntsen T, Betts R, Fahey DW, Haywood J, Lean J, Lowe DC, Myhre G, Nganga J, Prinn R, Raga G, Schulz M, Van Dorland R (2007) ‘Changes in atmospheric constituents and in radiative forcing.’ (Cambridge University Press: New York)

Garcia RL, Long SP, Wall GW, Osborne CP, Kimball BA, Nie GY, Pinter PJ, LaMorte R, Wechsung F (1998) Photosynthesis and conductance of spring-wheat leaves: field response to continuous free-air atmospheric CO2 enrichment. Plant, Cell & Environment 21, 659–669.
Photosynthesis and conductance of spring-wheat leaves: field response to continuous free-air atmospheric CO2 enrichment.Crossref | GoogleScholarGoogle Scholar |

Gifford RM, Lambers H, Morison JIL (1985) Respiration of crop species under CO2 enrichment. Physiologia Plantarum 63, 351–356.
Respiration of crop species under CO2 enrichment.Crossref | GoogleScholarGoogle Scholar |

Gutiérrez D, Gutiérrez E, Pérez P, Morcuende R, Verdejo AL, Martinez-Carrasco R (2009) Acclimation to future atmospheric CO2 levels increases photochemical efficiency and mitigates photochemistry inhibition by warm temperatures in wheat under field chambers. Physiologia Plantarum 137, 86–100.
Acclimation to future atmospheric CO2 levels increases photochemical efficiency and mitigates photochemistry inhibition by warm temperatures in wheat under field chambers.Crossref | GoogleScholarGoogle Scholar |

Hanft JM, Wych RD (1982) Visual indicators of physiological maturity of hard red spring wheat. Crop Science 22, 584–588.

Henson IE, Jensen CR, Turner NC (1990) Influence of leaf age and light environment on the gas exchange of lupins and wheat. Physiologia Plantarum 79, 15–22.
Influence of leaf age and light environment on the gas exchange of lupins and wheat.Crossref | GoogleScholarGoogle Scholar |

Hobbs PR, Sayre KD (2001) Managing experimental breeding trials. In ‘Application of physiology in wheat breeding’. (Eds MP Reynolds, JI Ortiz-Monasterio, A McNab.) pp. 52–58. (International Maize and Wheat Improvement Center, CIMMYT: El Batan, Mexico)

Högy P, Fangmeier A (2008) Effects of elevated atmospheric CO2 on grain quality of wheat. Journal of Cereal Science 48, 580–591.
Effects of elevated atmospheric CO2 on grain quality of wheat.Crossref | GoogleScholarGoogle Scholar |

Högy P, Wieser H, Köhler P, Schwadorf K, Breuer J, Erbs M, Weber S, Fangmeier A (2009a) Does elevated atmospheric CO2 allow for sufficient wheat grain quality in the future? Journal of Applied Botany and Food Quality – Angewandte Botanik 82, 114–121.

Högy P, Wieser H, Kohler P, Schwadorf K, Breuer J, Franzaring J, Muntifering R, Fangmeier A (2009b) Effects of elevated CO2 on grain yield and quality of wheat: results from a 3-year free-air CO2 enrichment experiment. Plant Biology 11, 60–69.
Effects of elevated CO2 on grain yield and quality of wheat: results from a 3-year free-air CO2 enrichment experiment.Crossref | GoogleScholarGoogle Scholar |

Hunsaker DJ, Kimball BA, Pinter PJ, Wall GW, LaMorte RL, Adamsen FJ, Leavitt SW, Thompson TL, Matthias AD, Brooks TJ (2000) CO2 enrichment and soil nitrogen effects on wheat evapotranspiration and water use efficiency. Agricultural and Forest Meteorology 104, 85–105.
CO2 enrichment and soil nitrogen effects on wheat evapotranspiration and water use efficiency.Crossref | GoogleScholarGoogle Scholar |

Inoue T, Inanaga S, Sugimoto Y, An P, Eneji AE (2004) Effect of drought on ear and flag leaf photosynthesis of two wheat cultivars differing in drought resistance. Photosynthetica 42, 559–565.
Effect of drought on ear and flag leaf photosynthesis of two wheat cultivars differing in drought resistance.Crossref | GoogleScholarGoogle Scholar |

Jitla DS, Rogers GS, Seneweera SP, Basra AS, Oldfield RI, Conroy JP (1997) Accelerated early growth of rice at elevated CO2: is it related to developmental changes in the shoot apex? Plant Physiology 11, 15–22.

Kimball BA, Pinter PJ, Garcia RL, LaMorte RL, Wall GW, Hunsaker DJ, Wechsung G, Wechsung F, Kartschalls T (1995) Productivity and water use of wheat under free-air CO2 enrichment. Global Change Biology 1, 429–442.
Productivity and water use of wheat under free-air CO2 enrichment.Crossref | GoogleScholarGoogle Scholar |

Kimball BA, Morris CF, Pinter PJ, Wall GW, Hunsaker DJ, Adamsen FJ, LaMorte RL, Leavitt SW, Thompson TL, Matthias AD, Brooks TJ (2001) Elevated CO2, drought and soil nitrogen effects on wheat grain quality. New Phytologist 150, 295–303.
Elevated CO2, drought and soil nitrogen effects on wheat grain quality.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD3MXjvVegsro%3D&md5=daa068f9c23c21cb98a26c75760131e6CAS |

Kobata T, Palta JA, Turner NC (1992) Rate of development of postanthesis water deficits and grain filling of spring wheat. Crop Science 32, 1238–1242.
Rate of development of postanthesis water deficits and grain filling of spring wheat.Crossref | GoogleScholarGoogle Scholar |

Lawlor DW, Mitchell RAC (2000) Crop ecosystem responses to climatic change: wheat. In ‘Climate change and global crop productivity’. (Eds KR Reddy, HF Hodges.) pp. 57–80. (CAB International: Wallingford)

Long SP, Ainsworth EA, Rogers A, Ort DR (2004) Rising atmospheric carbon dioxide: plants FACE the future. Annual Review of Plant Biology 55, 591–628.
Rising atmospheric carbon dioxide: plants FACE the future.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2cXlvFeisb8%3D&md5=338f9ad4fc253a7de16b3b2d3450ebf5CAS |

Manderscheid R, Weigel HJ (2007) Drought stress effects on wheat are mitigated by atmospheric CO2 enrichment. Agronomy for Sustainable Development 27, 79–87.
Drought stress effects on wheat are mitigated by atmospheric CO2 enrichment.Crossref | GoogleScholarGoogle Scholar |

Manderscheid R, Burkart S, Bramm A, Weigel H-J (2003) Effect of CO2 enrichment on growth and daily radiation use efficiency of wheat in relation to temperature and growth stage. European Journal of Agronomy 19, 411–425.
Effect of CO2 enrichment on growth and daily radiation use efficiency of wheat in relation to temperature and growth stage.Crossref | GoogleScholarGoogle Scholar |

Martínez-Carrasco R, Pérez P, Morcuende R (2005) Interactive effects of elevated CO2, temperature and nitrogen on photosynthesis of wheat grown under temperature gradient tunnels. Environmental and Experimental Botany 54, 49–59.
Interactive effects of elevated CO2, temperature and nitrogen on photosynthesis of wheat grown under temperature gradient tunnels.Crossref | GoogleScholarGoogle Scholar |

McArthur WH, Bettenay E (1960) ‘Development and distribution of soils on the Swan Coastal Plain, Western Australia.’ (CSIRO: Melbourne)

Miglietta F, Giuntoli A, Bindi M (1996) The effect of free air carbon dioxide enrichment (FACE) and soil nitrogen availability on the photosynthetic capacity of wheat. Photosynthesis Research 47, 281–290.

Musgrave ME, Strain BR (1988) Response of two wheat cultivars to CO2 enrichment under subambient oxygen conditions. Plant Physiology 87, 346–350.
Response of two wheat cultivars to CO2 enrichment under subambient oxygen conditions.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaL1cXkslSmsb0%3D&md5=609367ce7280d4417c64eef7653c559fCAS |

Ottman MJ, Kimball BA, White JW, Wall GW (2012) Wheat growth response to increased temperature from varied planting dates and supplemental infrared heating. Agronomy Journal 104, 7–16.
Wheat growth response to increased temperature from varied planting dates and supplemental infrared heating.Crossref | GoogleScholarGoogle Scholar |

Palta JA (1996) Role of calcium in plant responses to stresses: linking basic research to the solution of practical problems. HortScience 31, 51–57.

Palta JA, Ludwig C (1997) Pod set and seed yield as affected by cytokinin application and terminal drought in narrow-leafed lupin. Australian Journal of Agricultural Research 48, 81–90.
Pod set and seed yield as affected by cytokinin application and terminal drought in narrow-leafed lupin.Crossref | GoogleScholarGoogle Scholar |

Palta JA, Watt M (2009) Crop roots systems form and function: improving the capture of water and nutrients with vigorous root systems. In ‘Crop physiology: applications for genetic improvement and agronomy’. (Ed. DC V Sadras.) pp. 309–325. (Academic Press: San Diego)

Palta JA, Asseng S, Milroy SP, Ludwig C (2009) ‘Elevated CO2 will affect water use efficiency of wheat cultivars differently.’ (Department of Agriculture and Food of Western Australia: Perth)

Palta JA, Chen X, Milroy SP, Rebetzke GJ, Dreccer F, Watt M (2011) Large root systems: are they useful in adapting wheat to dry environments? Functional Plant Biology 38, 347–354.
Large root systems: are they useful in adapting wheat to dry environments?Crossref | GoogleScholarGoogle Scholar |

Passioura JB (1983) Roots and drought resistance. Agricultural Water Management 7, 265–280.
Roots and drought resistance.Crossref | GoogleScholarGoogle Scholar |

Passioura JBR, Fischer (Ed.) (2004) ‘Increasing crop productivity when water is scarce – from breeding to field management, 4th International Crop Science Congress, June 2010’, Brisbane, Australia.

Peng S, Huang J, Sheehy JE, Laza RC, Visperas RM, Zhong X, Centeno GS, Khush GS, Cassman KG (2004) Rice yields decline with higher night temperature from global warming. Proceedings of the National Academy of Sciences of the United States of America 101, 9971–9975.
Rice yields decline with higher night temperature from global warming.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2cXlvFOiu78%3D&md5=72f0a90ba4207a5c5bede25c5b704cc3CAS |

Ragab R, Prudhomme C (2002) SW – Soil and water: climate change and water resources management in arid and semi-arid regions: prospective and challenges for the 21st century. Biosystems Engineering 81, 3–34.
SW – Soil and water: climate change and water resources management in arid and semi-arid regions: prospective and challenges for the 21st century.Crossref | GoogleScholarGoogle Scholar |

Rawson HM (1986) High-temperature-tolerant wheat: a description of variation and a search for some limitations to productivity. Field Crops Research 14, 197–212.
High-temperature-tolerant wheat: a description of variation and a search for some limitations to productivity.Crossref | GoogleScholarGoogle Scholar |

Rawson HM (1995) Yield responses of two wheat genotypes to carbon dioxide and temperature in field studies using temperature gradient tunnels. Australian Journal of Plant Physiology 22, 23–32.
Yield responses of two wheat genotypes to carbon dioxide and temperature in field studies using temperature gradient tunnels.Crossref | GoogleScholarGoogle Scholar |

Rogers H, Prior H, Runion G, Mitchell R (1996) Carbon allocation mechanisms and controls: root to shoot ratio of crops as influenced by CO2. Plant and Soil 187, 229–248.
Carbon allocation mechanisms and controls: root to shoot ratio of crops as influenced by CO2.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaK2sXjtlSjs78%3D&md5=82c5d6980813b56e0805562d878756ffCAS |

Schütz M, Fangmeier A (2001) Growth and yield responses of spring wheat (Triticum aestivum L. cv Minaret) to elevated CO2 and water limitation. Environmental Pollution 114, 187–194.
Growth and yield responses of spring wheat (Triticum aestivum L. cv Minaret) to elevated CO2 and water limitation.Crossref | GoogleScholarGoogle Scholar |

Sengupta UK (1988) Effect of increasing CO2 concentration on photosynthesis and photorespiration in wheat leaf. Current Science 57, 145–146.

Slafer GA, Rawson HM (1995) Base and optimum temperatures vary with genotype and stage of development in wheat. Plant, Cell & Environment 18, 671–679.
Base and optimum temperatures vary with genotype and stage of development in wheat.Crossref | GoogleScholarGoogle Scholar |

Takami S, Kobata T, Van Bavel CHM (1990) Quantitative method for analysis of grain yield in rice. Agronomy Journal 82, 1149–1153.
Quantitative method for analysis of grain yield in rice.Crossref | GoogleScholarGoogle Scholar |

Tubiello FN, Soussana J-F, Howden SM (2007) Crop and pasture response to climate change. Proceedings of the National Academy of Sciences of the United States of America 104, 19 686–19 690.
Crop and pasture response to climate change.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD1cXitFSlsQ%3D%3D&md5=75cc163b4a2c2c04cc7d3c0dee876f3dCAS |

Turner NC (1988) Measurement of plant water status by the pressure chamber technique. Irrigation Science 9, 289–308.
Measurement of plant water status by the pressure chamber technique.Crossref | GoogleScholarGoogle Scholar |

van Ittersum MK, Howden MS, Asseng S (2003) Sensitivity of productivity and deep drainage of wheat cropping systems in a Mediterranean environment to changes in CO2, temperature and precipitation. Agriculture Ecosystems & Environment 97, 255–273.
Sensitivity of productivity and deep drainage of wheat cropping systems in a Mediterranean environment to changes in CO2, temperature and precipitation.Crossref | GoogleScholarGoogle Scholar |

van Oijen M, Ewert F (1999) The effects of climatic variation in Europe on the yield response of spring wheat cv. Minaret to elevated CO2 and O3: an analysis of open-top chamber experiments by means of two crop growth simulation models. European Journal of Agronomy 10, 249–264.
The effects of climatic variation in Europe on the yield response of spring wheat cv. Minaret to elevated CO2 and O3: an analysis of open-top chamber experiments by means of two crop growth simulation models.Crossref | GoogleScholarGoogle Scholar |

Wall GW, Kimball BA, White JW, Ottman MJ (2011) Gas exchange and water relations of spring wheat under full-season infrared warming. Global Change Biology 17, 2113–2133.
Gas exchange and water relations of spring wheat under full-season infrared warming.Crossref | GoogleScholarGoogle Scholar |

Wardlaw IF, Moncur L (1995) The response of wheat to high temperature following anthesis. I The rate and duration of kernel filling. Australian Journal of Plant Physiology 22, 391–397.
The response of wheat to high temperature following anthesis. I The rate and duration of kernel filling.Crossref | GoogleScholarGoogle Scholar |

Wheeler TR, Hong TH, Ellis RH, Batts GR, Morison JIL, Hadley P (1996) The duration and rate of grain growth, and harvest index, of wheat (Triticum aestivum L.) in response to temperature and CO2. Journal of Experimental Botany 47, 623–630.
The duration and rate of grain growth, and harvest index, of wheat (Triticum aestivum L.) in response to temperature and CO2.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaK28XjsFynu7s%3D&md5=9e81410ba792bfd9ed82cb396923117cCAS |

Yang J, Zhang J, Wang Z, Zhu Q, Wang W (2001) Remobilization of carbon reserves in response to water deficit during grain filling of rice. Field Crops Research 71, 47–55.
Remobilization of carbon reserves in response to water deficit during grain filling of rice.Crossref | GoogleScholarGoogle Scholar |

Zadoks JC, Chang TT, Konzak CF (1974) A decimal code for the growth stages of the cereals. Weed Research 14, 415–421.
A decimal code for the growth stages of the cereals.Crossref | GoogleScholarGoogle Scholar |

Zahedi M, Jenner CF (2003) Analysis of effects in wheat of high temperature on grain filling attributes estimated from mathematical models of grain filling. The Journal of Agricultural Science 141, 203–212.
Analysis of effects in wheat of high temperature on grain filling attributes estimated from mathematical models of grain filling.Crossref | GoogleScholarGoogle Scholar |

Zhu JG, Zhu CW, Zeng Q, Liu G, Xie ZB, Tang HY, Cao JL, Zhao XZ (2009) Elevated CO2 accelerates flag leaf senescence in wheat due to ear photosynthesis which causes greater ear nitrogen sink capacity and ear carbon sink limitation. Functional Plant Biology 36, 291–299.
Elevated CO2 accelerates flag leaf senescence in wheat due to ear photosynthesis which causes greater ear nitrogen sink capacity and ear carbon sink limitation.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD1MXjvVantrk%3D&md5=ad39e774dc89875d675ee3dc320701ffCAS |