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

Genotypic and seasonal variation in root depth development during establishment of C4 perennial grass ecotypes

Chanthy Huot https://orcid.org/0000-0003-1557-9070 A B , Joshua N. M. Philp https://orcid.org/0000-0002-5839-540X A , Yi Zhou https://orcid.org/0000-0002-7119-7408 A * and Matthew D. Denton https://orcid.org/0000-0002-2804-0384 A
+ Author Affiliations
- Author Affiliations

A School of Agriculture Food and Wine, The University of Adelaide, Waite Campus, Urrbrae, SA 5064, Australia.

B Centre for Livestock Development Studies, Royal University of Agriculture, Phnom Penh 12401, Cambodia.

* Correspondence to: yi.zhou@adelaide.edu.au

Handling Editor: Mary-Jane Rogers

Crop & Pasture Science 72(11) 913-925 https://doi.org/10.1071/CP21258
Submitted: 12 April 2021  Accepted: 20 July 2021   Published: 15 November 2021

© 2021 The Author(s) (or their employer(s)). Published by CSIRO Publishing

Abstract

Context: Perennial forage grass species are often grown with limited water following establishment and rely on accessing water deep in the soil profile to survive.

Aim: This study aimed to characterise bermudagrass (Cynodon spp.) genotypes with rapid vertical root growth associated with post-establishment survival.

Methods: Twelve bermudagrasses representing genotypes from diverse climate zones in Australia were established in rhizotrons to analyse the stability in genotypic variation in root and shoot growth in winter and summer experiments. Genotypic rank of root length, leaf area, and root dry weight were consistent in both seasons.

Key results: Bermudagrass genotypes exhibited different traits correlated with root vertical growth rate and inconsistency of genotypic rank of shoot growth. During winter establishment, the rate of root depth development (RRDD) (r = −0.64) was correlated with the proportion of root length that became inactive, that was likely due to seasonal root death in winter conditions; during summer establishment, RRDD was correlated with tiller appearance rate (r = 0.45) and root distribution to 10 cm depth (r = −0.62). Shoot dry weight was correlated with photosynthesis (r = 0.85) and transpiration (r = 0.79) in summer, but not in winter. RRDD (r = 0.75, winter and r = 0.77, summer) was correlated with drought resistance index, previously analysed under field conditions.

Conclusions and implications: Genotypes from the Mediterranean climates in Australia showed rapid growth of roots and shoots in both seasons and have the greatest potential for broader application for forage production in variable environments.

Keywords: arid pastures, Bermuda grass, drought resistance, forage management, root depth development, seasonal growth, turfgrass, winter dormancy.


References

Acuña CA, Sinclair TR, Mackowiak CL, Blount AR, Quesenberry KH, Hanna WW (2010) Potential root depth development and nitrogen uptake by tetraploid bahiagrass hybrids. Plant and Soil 334, 491–499.
Potential root depth development and nitrogen uptake by tetraploid bahiagrass hybrids.Crossref | GoogleScholarGoogle Scholar |

Ahring RM, Taliaferro CM, Richardson WL (1982) Single-cross bermudagrass seed production under different management. Agronomy Journal 74, 445–446.
Single-cross bermudagrass seed production under different management.Crossref | GoogleScholarGoogle Scholar |

Anderson WF, Maas A, Ozias-Akins P (2009) Genetic variability of a forage bermudagrass core collection. Crop Science 49, 1347–1358.
Genetic variability of a forage bermudagrass core collection.Crossref | GoogleScholarGoogle Scholar |

Baseggio M, Newman YC, Sollenberger LE, Fraisse C, Obreza T (2015) Stolon planting rate effects on Tifton 85 bermudagrass establishment. Agronomy Journal 107, 1287–1294.
Stolon planting rate effects on Tifton 85 bermudagrass establishment.Crossref | GoogleScholarGoogle Scholar |

Bodner G, Nakhforoosh A, Kaul HP (2015) Management of crop water under drought: a review. Agronomy for Sustainable Development 35, 401–442.
Management of crop water under drought: a review.Crossref | GoogleScholarGoogle Scholar |

Boeri PA, Unruh JB, Kenworthy KE, Trenholm LE, Rios EF (2020) Aboveground and belowground traits of turf-type bahiagrass (Paspalum notatum Flügge) genotypes under simulated drought. International Turfgrass Society Research Journal
Aboveground and belowground traits of turf-type bahiagrass (Paspalum notatum Flügge) genotypes under simulated drought.Crossref | GoogleScholarGoogle Scholar |

Burton GW, Gates RN, Hill GM (1993) Registration of ‘Tifton 85’ bermudagrass. Crop Science 33, 644–645.
Registration of ‘Tifton 85’ bermudagrass.Crossref | GoogleScholarGoogle Scholar |

Carnevalli RA, de Souza Congio GF, Sbrissia AF, Da Silva SC (2021) Growth of Megathyrsus maximus cv. Mombaça as affected by grazing strategies and environmental seasonality. II. Dynamics of herbage accumulation. Crop & Pasture Science 72, 66–74.
Growth of Megathyrsus maximus cv. Mombaça as affected by grazing strategies and environmental seasonality. II. Dynamics of herbage accumulation.Crossref | GoogleScholarGoogle Scholar |

Christensen CT, Zhang J, Kenworthy KE, Erickson J, Kruse J, Schwartz B (2017) Classification of zoysiagrass genotypes on rooting capacity and associated performance during drought. International Turfgrass Society Research Journal 13, 410–420.
Classification of zoysiagrass genotypes on rooting capacity and associated performance during drought.Crossref | GoogleScholarGoogle Scholar |

Comas LH, Eissenstat DM, Lakso AN (2000) Assessing root death and root system dynamics in a study of grape canopy pruning. New Phytologist 147, 171–178.
Assessing root death and root system dynamics in a study of grape canopy pruning.Crossref | GoogleScholarGoogle Scholar |

Conaghan P, Casler MD, McGilloway DA, O’Kiely P, Dowley LJ (2008) Genotype × environment interactions for herbage yield of perennial ryegrass sward plots in Ireland. Grass and Forage Science 63, 107–120.
Genotype × environment interactions for herbage yield of perennial ryegrass sward plots in Ireland.Crossref | GoogleScholarGoogle Scholar |

Cook BG, Pengelly BC, Brown SD, Donnelly JL, Eagles DA, Franco MA, Hanson J, Mullen BF, Partridge IJ, Peters M, Schultze-Kraft R (2005) ‘Tropical forages: an interactive selection tool’, 2005 edn. (CSIRO, DPI & F (Qld), CIAT and ILRI: Brisbane, Qld, Australia) Available at http://www.tropicalforages.info [Accessed 7 January 2021].

Côté B, Hendershot WH, Fyles JW, Roy AG, Bradley R, Biron PM, Courchesne F (1998) The phenology of fine root growth in a maple-dominated ecosystem: relationships with some soil properties. Plant and Soil 201, 59–69.
The phenology of fine root growth in a maple-dominated ecosystem: relationships with some soil properties.Crossref | GoogleScholarGoogle Scholar |

Crossa J (2012) From genotype × environment interaction to gene × environment interaction. Current Genomics 13, 225–244.
From genotype × environment interaction to gene × environment interaction.Crossref | GoogleScholarGoogle Scholar | 23115524PubMed |

da Pontes LS, Maire V, Schellberg J, Louault F (2015) Grass strategies and grassland community responses to environmental drivers: a review. Agronomy for Sustainable Development 35, 1297–1318.
Grass strategies and grassland community responses to environmental drivers: a review.Crossref | GoogleScholarGoogle Scholar |

da Silva SC, Sbrissia AF, Pereira LET (2015) Ecophysiology of C4 forage grasses – understanding plant growth for optimising their use and management. Agriculture 5, 598–625.
Ecophysiology of C4 forage grasses – understanding plant growth for optimising their use and management.Crossref | GoogleScholarGoogle Scholar |

da Silva SC, Uebele MC, de Souza Congio GF, Carnevalli RA, Sbrissia AF (2021) Growth of Megathyrsus maximus cv. Mombaça as affected by grazing strategies and environmental seasonality. I. Tillering dynamics and population stability. Crop & Pasture Science 72, 55–65.
Growth of Megathyrsus maximus cv. Mombaça as affected by grazing strategies and environmental seasonality. I. Tillering dynamics and population stability.Crossref | GoogleScholarGoogle Scholar |

Esmaili S, Salehi H (2012) Effects of temperature and photoperiod on postponing bermudagrass (Cynodon dactylon [L.] Pers.) turf dormancy. Journal of Plant Physiology 169, 851–858.
Effects of temperature and photoperiod on postponing bermudagrass (Cynodon dactylon [L.] Pers.) turf dormancy.Crossref | GoogleScholarGoogle Scholar | 22465814PubMed |

Fagerness MJ, Yelverton FH, Livingston III DP, Rufty TW (2002) Temperature and trinexapac-ethyl effects on bermudagrass growth, dormancy, and freezing tolerance. Crop Science 42, 853–858.
Temperature and trinexapac-ethyl effects on bermudagrass growth, dormancy, and freezing tolerance.Crossref | GoogleScholarGoogle Scholar |

Fuentealba MP, Zhang J, Kenworthy KE, Erickson JE, Kruse J, Trenholm LE (2015) Root development and profile characteristics of bermudagrass and zoysiagrass. HortScience 50, 1429–1434.
Root development and profile characteristics of bermudagrass and zoysiagrass.Crossref | GoogleScholarGoogle Scholar |

Gomes VC, Vendramini JMB, da Silva HMS (2019) Herbage accumulation and nutritive value of seeded bermudagrass cultivars. Crop, Forage & Turfgrass Management 5, 190063
Herbage accumulation and nutritive value of seeded bermudagrass cultivars.Crossref | GoogleScholarGoogle Scholar |

Guenni O, Marín D, Baruch Z (2002) Responses to drought of five Brachiaria species. I. Biomass production, leaf growth, root distribution, water use and forage quality. Plant and Soil 243, 229–241.
Responses to drought of five Brachiaria species. I. Biomass production, leaf growth, root distribution, water use and forage quality.Crossref | GoogleScholarGoogle Scholar |

Guyonnet JP, Cantarel AA, Simon L, Haichar FZ (2018) Root exudation rate as functional trait involved in plant nutrient-use strategy classification. Ecology and Evolution 8, 8573–8581.
Root exudation rate as functional trait involved in plant nutrient-use strategy classification.Crossref | GoogleScholarGoogle Scholar | 30250724PubMed |

Hacker A, Puachuay M, Shelton HM, Dalzell S, Al Dabbagh H, Jewell M, Van Tran T, Zhou Y, Halliday M, Giles H (2013) Potential of Australian bermudagrasses (Cynodon spp.) for pasture in subtropical Australia. Tropical Grasslands-Forrajes Tropicales 1, 81–83.
Potential of Australian bermudagrasses (Cynodon spp.) for pasture in subtropical Australia.Crossref | GoogleScholarGoogle Scholar |

Hanna W, Raymer P, Schwartz B (2013) Warm-season grasses: biology and breeding. In ‘Turfgrass: biology, use, and management’. Vol. 56. (Eds JC Stier, BP Horgan, SA Bonos) pp. 543–590. (American Society of Agronomy Soil Science Society of America Crop Science Society of America: Madison, WI, USA)

Harlan JR, De Wet J (1969) Sources of variation in Cynodon dactylon (L). Pers. 1. Crop Science 9, 774–778.
Sources of variation in Cynodon dactylon (L). Pers. 1.Crossref | GoogleScholarGoogle Scholar |

Hill GM, Gates RN, West JW (2001) Advances in bermudagrass research involving new cultivars for beef and dairy production. Journal of Animal Science 79, E48–E58.
Advances in bermudagrass research involving new cultivars for beef and dairy production.Crossref | GoogleScholarGoogle Scholar |

Huot C, Zhou Y, Philp JNM, Denton MD (2020) Root depth development in tropical perennial forage grasses is associated with root angle, root diameter and leaf area. Plant and Soil 456, 145–158.
Root depth development in tropical perennial forage grasses is associated with root angle, root diameter and leaf area.Crossref | GoogleScholarGoogle Scholar |

Jewell M, Frère CH, Harris-Shultz K, Anderson WF, Godwin ID, Lambrides CJ (2012a) Phylogenetic analysis reveals multiple introductions of Cynodon species in Australia. Molecular Phylogenetics and Evolution 65, 390–396.
Phylogenetic analysis reveals multiple introductions of Cynodon species in Australia.Crossref | GoogleScholarGoogle Scholar | 22797088PubMed |

Jewell MC, Zhou Y, Loch DS, Godwin ID, Lambrides CJ (2012b) Maximizing genetic, morphological, and geographic diversity in a core collection of Australian bermudagrass. Crop Science 52, 879–889.
Maximizing genetic, morphological, and geographic diversity in a core collection of Australian bermudagrass.Crossref | GoogleScholarGoogle Scholar |

Johnson LC, Matchett JR (2001) Fire and grazing regulate belowground processes in tallgrass prairie. Ecology 82, 3377–3389.
Fire and grazing regulate belowground processes in tallgrass prairie.Crossref | GoogleScholarGoogle Scholar |

Jones MB, Finnan J, Hodkinson TR (2015) Morphological and physiological traits for higher biomass production in perennial rhizomatous grasses grown on marginal land. GCB Bioenergy 7, 375–385.
Morphological and physiological traits for higher biomass production in perennial rhizomatous grasses grown on marginal land.Crossref | GoogleScholarGoogle Scholar |

Joslin JD, Wolfe MH, Hanson PJ (2001) Factors controlling the timing of root elongation intensity in a mature upland oak stand. Plant and Soil 228, 201–212.
Factors controlling the timing of root elongation intensity in a mature upland oak stand.Crossref | GoogleScholarGoogle Scholar |

Kaufmann JE (1994) Principles of turfgrass growth and development. In ‘Handbook of integrated pest management for turf and ornamentals’. (Ed. AR Lesley) pp. 63–79. (Lewis Publishers: Washington, DC, USA)

Kearns R, Zhou Y, Shu F, Ye C, Loch D, Godwin I, Holton T, Innes D, Stirling H, Cao N (2009) Eco-turf: water use efficient turfgrasses from Australian biodiversity. Acta Horticulturae 113–118.
Eco-turf: water use efficient turfgrasses from Australian biodiversity.Crossref | GoogleScholarGoogle Scholar |

Kulmatiski A, Beard KH (2013) Root niche partitioning among grasses, saplings, and trees measured using a tracer technique. Oecologia 171, 25–37.
Root niche partitioning among grasses, saplings, and trees measured using a tracer technique.Crossref | GoogleScholarGoogle Scholar | 22752210PubMed |

Lambrides CJ, Zhou Y, Fukai S, Jewell M, Loch D, Godwin I, Holton T, Innes D, Frere C, Hanna W (2013) Ecoturf – a case study on genetic variation and agronomic potential of bermudagrass (Cynodon spp.) germplasm collected from Australian biodiversity. International Turfgrass Society Research Journal 12, 263–266.

Minitab Inc. (2010) Minitab 15 [window software]. Minitab, Inc., State College, PA, USA. www.minitab.com

Ott JP, Hartnett DC (2012) Contrasting bud bank dynamics of two co-occurring grasses in tallgrass prairie: implications for grassland dynamics. Plant Ecology 213, 1437–1448.
Contrasting bud bank dynamics of two co-occurring grasses in tallgrass prairie: implications for grassland dynamics.Crossref | GoogleScholarGoogle Scholar |

Pandeya VC, Ahirwalb J (2020) Bermuda grass – its role in ecological restoration and biomass production. Phytoremediation Potential of Perennial Grasses 227–244.
Bermuda grass – its role in ecological restoration and biomass production.Crossref | GoogleScholarGoogle Scholar |

Paula S, Pausas JG (2006) Leaf traits and resprouting ability in the Mediterranean basin. Functional Ecology 20, 941–947.
Leaf traits and resprouting ability in the Mediterranean basin.Crossref | GoogleScholarGoogle Scholar |

Peek M, S (2007) Explaining variation in fine root life span. In ‘Progress in botany 68’. (Eds K Esser, U Lüttge, W Beyschlag, J Murata) pp. 382–398. (Springer: Berlin/Heidelberg, Germany)

Pequeno DNL, Pedreira CGS, Sollenberger LE, de Faria AFG, Silva LS (2015) Forage accumulation and nutritive value of brachiariagrasses and tifton 85 bermudagrass as affected by harvest frequency and irrigation. Agronomy Journal 107, 1741–1749.
Forage accumulation and nutritive value of brachiariagrasses and tifton 85 bermudagrass as affected by harvest frequency and irrigation.Crossref | GoogleScholarGoogle Scholar |

Philp JNM, Vance W, Bell RW, Chhay T, Boyd D, Phimphachanhvongsod V, Denton MD (2019) Forage options to sustainably intensify smallholder farming systems on tropical sandy soils. A review. Agronomy for Sustainable Development 39, 30
Forage options to sustainably intensify smallholder farming systems on tropical sandy soils. A review.Crossref | GoogleScholarGoogle Scholar |

Philp JNM, Cornish PS, Te KSH, Bell RW, Vance W, Lim V, Li X, Kamphayae S, Denton MD (2021) Insufficient potassium and sulfur supply threaten the productivity of perennial forage grasses in smallholder farms on tropical sandy soils. Plant and Soil 461, 617–630.
Insufficient potassium and sulfur supply threaten the productivity of perennial forage grasses in smallholder farms on tropical sandy soils.Crossref | GoogleScholarGoogle Scholar |

Rasband WS (1997) ImageJ [software]. National Institutes of Health, Bethesda, MD, USA.

Razar RM, Missaoui A (2018) Phenotyping winter dormancy in switchgrass to extend the growing season and improve biomass yield. Journal of Sustainable Bioenergy Systems 8, 1
Phenotyping winter dormancy in switchgrass to extend the growing season and improve biomass yield.Crossref | GoogleScholarGoogle Scholar |

Reasor EH, Brosnan JT, Kerns JP, Hutchens WJ, Taylor DR, McCurdy JD, Soldat DJ, Kreuser WC (2018) Growing degree day models for plant growth regulator applications on ultradwarf hybrid bermudagrass putting greens. Crop Science 58, 1801–1807.
Growing degree day models for plant growth regulator applications on ultradwarf hybrid bermudagrass putting greens.Crossref | GoogleScholarGoogle Scholar |

Regent Instruments Inc. (2019) ‘WinRHIZO, image analysis for plant science [software]’, (Regent Instruments: Québec, QC, Canada)

Reich PB (2014) The world-wide ‘fast–slow’ plant economics spectrum: a traits manifesto. Ecology 102, 275–301.
The world-wide ‘fast–slow’ plant economics spectrum: a traits manifesto.Crossref | GoogleScholarGoogle Scholar |

Robins JG, Rigby CW, Jensen KB (2020) Genotype × environment interaction patterns in rangeland variety trials of cool-season grasses in the Western United States. Agronomy 10, 623
Genotype × environment interaction patterns in rangeland variety trials of cool-season grasses in the Western United States.Crossref | GoogleScholarGoogle Scholar |

Stier JC, Horgan BP, Bonos SA (Eds) (2013) ‘Turfgrass: biology, use, and management’, (American Society of Agronomy, Crop Science Society of America, Soil Science Society of America: Madison, WI, USA)

Systat Software Inc. (2017) SigmaPlot 14.0 [software]. Systat, San Jose, CA, USA.

Taliaferro CM, Rouquette Jr FM, Mislevy P (2004) Bermudagrass and Stargrass. In ‘Warm‐season (C4) grasses’. (Eds LE Moser, BL Burson, LE Sollenberger) pp. 417–475.
| Crossref |

Tan C, Wu Y, Taliaferro CM, Bell GE, Martin DL, Smith MW, Moss JQ (2014) Selfing and outcrossing fertility in common bermudagrass under open-pollinating conditions examined by SSR markers. Crop Science 54, 1832–1837.
Selfing and outcrossing fertility in common bermudagrass under open-pollinating conditions examined by SSR markers.Crossref | GoogleScholarGoogle Scholar |

Van Tran T, Fukai S, Giles HE, Lambrides CJ (2018) Salinity tolerance among a large range of bermudagrasses (Cynodon spp.) relative to other halophytic and non-halophytic perennial C4 grasses. Environmental and Experimental Botany 145, 121–129.
Salinity tolerance among a large range of bermudagrasses (Cynodon spp.) relative to other halophytic and non-halophytic perennial C4 grasses.Crossref | GoogleScholarGoogle Scholar |

Van Tran T, Fukai S, van Herwaarden AF, Lambrides CJ (2017) Physiological basis of sprouting potential in bermudagrass. Agronomy Journal 109, 1734–1742.
Physiological basis of sprouting potential in bermudagrass.Crossref | GoogleScholarGoogle Scholar |

Vogel KP, Reece PE, Nichols JT (1993) Genotype and genotype × environment interaction effects on forage yield and quality of intermediate wheatgrass in swards. Crop Science 33, 37–41.
Genotype and genotype × environment interaction effects on forage yield and quality of intermediate wheatgrass in swards.Crossref | GoogleScholarGoogle Scholar |

VSN International (2019) ‘Genstat for Windows.’ 18th edn [software]. (VSN International: Hemel Hempstead, UK)

Wahl S, Ryser P (2000) Root tissue structure is linked to ecological strategies of grasses. New Phytologist 148, 459–471.
Root tissue structure is linked to ecological strategies of grasses.Crossref | GoogleScholarGoogle Scholar |

Wells CE, Eissenstat DM (2001) Marked differences in survivorship among apple roots of different diameters. Ecology 82, 882–892.
Marked differences in survivorship among apple roots of different diameters.Crossref | GoogleScholarGoogle Scholar |

West JB, Espeleta JF, Donovan LA (2003) Root longevity and phenology differences between two co-occurring savanna bunchgrasses with different leaf habits. Functional Ecology 17, 20–28.
Root longevity and phenology differences between two co-occurring savanna bunchgrasses with different leaf habits.Crossref | GoogleScholarGoogle Scholar |

White RH, Schmidt RE (1990) Fall performance and post-dormancy growth of ‘Midiron’ bermudagrass in response to nitrogen, iron, and benzyladenine. Journal of the American Society for Horticultural Science 115, 57–61.
Fall performance and post-dormancy growth of ‘Midiron’ bermudagrass in response to nitrogen, iron, and benzyladenine.Crossref | GoogleScholarGoogle Scholar |

Woo HR, Kim HJ, Nam HG, Lim PO (2013) Plant leaf senescence and death – regulation by multiple layers of control and implications for aging in general. Journal of Cell Science 126, 4823–4833.
Plant leaf senescence and death – regulation by multiple layers of control and implications for aging in general.Crossref | GoogleScholarGoogle Scholar | 24144694PubMed |

Wright IJ, Reich PB, Westoby M, Ackerly DD, Baruch Z, Bongers F, Cavender-Bares J, Chapin T, Cornelissen JHC, Diemer M, Flexas J, Garnier E, Groom PK, Gulias J, Hikosaka K, Lamont BB, Lee T, Lee W, Lusk C, Midgley JJ, Navas M-L, Niinemets Ü, Oleksyn J, Osada N, Poorter H, Poot P, Prior L, Pyankov VI, Roumet C, Thomas SC, Tjoelker MG, Veneklaas EJ, Villar R (2004) The worldwide leaf economics spectrum. Nature 428, 821–827.
The worldwide leaf economics spectrum.Crossref | GoogleScholarGoogle Scholar | 15103368PubMed |

Wu Y (2011) Cynodon. In ‘Wild crop relatives: genomic and breeding resources: millets and grasses.’ (Ed. C Kole) pp. 53–71. (Springer: Berlin, Heidelberg)

Zhang J, Wang M, Guo Z, Guan Y, Liu J, Yan X, Guo Y (2019) Genetic diversity and population structure of bermudagrass [Cynodon dactylon (L.) Pers.] along latitudinal gradients and the relationship with polyploidy level. Diversity 11, 135
Genetic diversity and population structure of bermudagrass [Cynodon dactylon (L.) Pers.] along latitudinal gradients and the relationship with polyploidy level.Crossref | GoogleScholarGoogle Scholar |

Zhang Y, Yin Y, Amombo E, Li X, Fu J (2020) Different mowing frequencies affect nutritive value and recovery potential of forage bermudagrass. Crop & Pasture Science 71, 610–619.
Different mowing frequencies affect nutritive value and recovery potential of forage bermudagrass.Crossref | GoogleScholarGoogle Scholar |

Zhou Y, Lambrides CJ, Fukai S (2013) Drought resistance of bermudagrass (Cynodon spp.) ecotypes collected from different climatic zones. Environmental and Experimental Botany 85, 22–29.
Drought resistance of bermudagrass (Cynodon spp.) ecotypes collected from different climatic zones.Crossref | GoogleScholarGoogle Scholar |

Zhou Y, Lambrides CJ, Fukai S (2014) Drought resistance and soil water extraction of a perennial C4 grass: contributions of root and rhizome traits. Functional Plant Biology 41, 505–519.
Drought resistance and soil water extraction of a perennial C4 grass: contributions of root and rhizome traits.Crossref | GoogleScholarGoogle Scholar | 32481009PubMed |

Zhou Y, Lambrides CJ, Fukai S (2015) Associations between drought resistance, regrowth and quality in a perennial C4 grass. European Journal of Agronomy 65, 1–9.
Associations between drought resistance, regrowth and quality in a perennial C4 grass.Crossref | GoogleScholarGoogle Scholar |