A growing degree day model determines the effect of temperature stress on diverse chickpea genotypes
Chickpeas are a globally crucial agricultural product, currently at risk due to human-induced climate change. There has been little research into the impact of heat stress on chickpea compared to other crops, but it is known that heat stress can cause up to 100% yield loss. This study measures Growi...
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Frontiers Media S.A.
2025-02-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2024.1496629/full |
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| author | Cara Jeffrey Cara Jeffrey Cara Jeffrey Laura Ziems Laura Ziems Brent Kaiser Brent Kaiser Richard Trethowan Richard Trethowan |
| author_facet | Cara Jeffrey Cara Jeffrey Cara Jeffrey Laura Ziems Laura Ziems Brent Kaiser Brent Kaiser Richard Trethowan Richard Trethowan |
| author_sort | Cara Jeffrey |
| collection | DOAJ |
| description | Chickpeas are a globally crucial agricultural product, currently at risk due to human-induced climate change. There has been little research into the impact of heat stress on chickpea compared to other crops, but it is known that heat stress can cause up to 100% yield loss. This study measures Growing Degree Days (GDD) in chickpeas, utilizing an existing calculation. This formula has been expanded for heat stress, titled Stress Degree Days (SDD), to examine the effects of high temperature stress on commercially important traits such as yield and seed size. Using a multi-environment trial, traits such as time to flowering, and seed size were observed in 148 chickpea cultivars across two sowing times in two different Australian locations (Narrabri in New South Wales, and Kununurra in Western Australia). It was determined that there is a significant correlation between yield, GDD, and SDD at all locations, sowing times, and life stages of the crop. These metrics allowed greater differentiation between environments when compared to a count of the number of calendar days required for each cultivar to reach a set life stage (flowering and maturation), allowing more accurate investigation the impacts of high temperature stress. It was also determined that loss of yield and a decrease in seed size was significantly correlated with high GDD and SDD, though seed size had less environmental plasticity (variability) compared to yield, and therefore higher stability under stress. GDD and SDD were shown to be useful for predicting genotype adaptation to locations and seasons thus providing a basis for varietal recommendations. This information could also be used to breed environment specific cultivars and to understand trait plasticity. |
| format | Article |
| id | doaj-art-9170990823fa4a609ae7df5d59c991f0 |
| institution | Kabale University |
| issn | 1664-462X |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj-art-9170990823fa4a609ae7df5d59c991f02025-02-12T07:25:33ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2025-02-011510.3389/fpls.2024.14966291496629A growing degree day model determines the effect of temperature stress on diverse chickpea genotypesCara Jeffrey0Cara Jeffrey1Cara Jeffrey2Laura Ziems3Laura Ziems4Brent Kaiser5Brent Kaiser6Richard Trethowan7Richard Trethowan8School of Life and Environmental Sciences, The University of Sydney, Sydney, NSW, AustraliaThe Plant Breeding Institute, The University of Sydney, Sydney, NSW, AustraliaThe Sydney Institute of Agriculture, The University of Sydney, Sydney, NSW, AustraliaSchool of Life and Environmental Sciences, The University of Sydney, Sydney, NSW, AustraliaThe Plant Breeding Institute, The University of Sydney, Sydney, NSW, AustraliaSchool of Life and Environmental Sciences, The University of Sydney, Sydney, NSW, AustraliaThe Sydney Institute of Agriculture, The University of Sydney, Sydney, NSW, AustraliaSchool of Life and Environmental Sciences, The University of Sydney, Sydney, NSW, AustraliaThe Plant Breeding Institute, The University of Sydney, Sydney, NSW, AustraliaChickpeas are a globally crucial agricultural product, currently at risk due to human-induced climate change. There has been little research into the impact of heat stress on chickpea compared to other crops, but it is known that heat stress can cause up to 100% yield loss. This study measures Growing Degree Days (GDD) in chickpeas, utilizing an existing calculation. This formula has been expanded for heat stress, titled Stress Degree Days (SDD), to examine the effects of high temperature stress on commercially important traits such as yield and seed size. Using a multi-environment trial, traits such as time to flowering, and seed size were observed in 148 chickpea cultivars across two sowing times in two different Australian locations (Narrabri in New South Wales, and Kununurra in Western Australia). It was determined that there is a significant correlation between yield, GDD, and SDD at all locations, sowing times, and life stages of the crop. These metrics allowed greater differentiation between environments when compared to a count of the number of calendar days required for each cultivar to reach a set life stage (flowering and maturation), allowing more accurate investigation the impacts of high temperature stress. It was also determined that loss of yield and a decrease in seed size was significantly correlated with high GDD and SDD, though seed size had less environmental plasticity (variability) compared to yield, and therefore higher stability under stress. GDD and SDD were shown to be useful for predicting genotype adaptation to locations and seasons thus providing a basis for varietal recommendations. This information could also be used to breed environment specific cultivars and to understand trait plasticity.https://www.frontiersin.org/articles/10.3389/fpls.2024.1496629/fullchickpeasabiotic stressheatyielddegree daysbreeding |
| spellingShingle | Cara Jeffrey Cara Jeffrey Cara Jeffrey Laura Ziems Laura Ziems Brent Kaiser Brent Kaiser Richard Trethowan Richard Trethowan A growing degree day model determines the effect of temperature stress on diverse chickpea genotypes Frontiers in Plant Science chickpeas abiotic stress heat yield degree days breeding |
| title | A growing degree day model determines the effect of temperature stress on diverse chickpea genotypes |
| title_full | A growing degree day model determines the effect of temperature stress on diverse chickpea genotypes |
| title_fullStr | A growing degree day model determines the effect of temperature stress on diverse chickpea genotypes |
| title_full_unstemmed | A growing degree day model determines the effect of temperature stress on diverse chickpea genotypes |
| title_short | A growing degree day model determines the effect of temperature stress on diverse chickpea genotypes |
| title_sort | growing degree day model determines the effect of temperature stress on diverse chickpea genotypes |
| topic | chickpeas abiotic stress heat yield degree days breeding |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2024.1496629/full |
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