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Performance of Spring and Summer-Sown Maize under Different Irrigation Strategies in Pakistan
Article

Effects of Heat Stress on Growth, Physiology of Plants, Yield and Grain Quality of Different Spring Wheat (Triticum aestivum L.) Genotypes

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School of Agronomy, Anhui Agricultural University, Hefei 230036, China
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Key Laboratory of Wheat Biology and Genetic Improvement on South Yellow & Huai River Valley, Ministry of Agriculture, Hefei 230036, China
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National United Engineering Laboratory for Crop Stress Resistance Breeding, Hefei 230036, China
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Maize and Millets Research Institute, Yusafwala-Sahiwal 57001, Pakistan
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Department of Botany, Mir Chakar Khan Rind University, Sibi 82000, Pakistan
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The National Engineering Laboratory of Crop Stress Breeding, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
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Anhui Key Laboratory of Crop Biology, Hefei 230036, China
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Authors to whom correspondence should be addressed.
Academic Editor: Azhar Abbas
Sustainability 2021, 13(5), 2972; https://doi.org/10.3390/su13052972
Received: 30 January 2021 / Revised: 3 March 2021 / Accepted: 4 March 2021 / Published: 9 March 2021
Heat stress is one of the major threats to wheat production in many wheat-growing areas of the world as it causes severe yield loss at the reproductive stage. In the current study, 28 crosses were developed using 11 parental lines, including 7 female lines and 4 male testers following line × tester matting design in 2018–2019. Twenty-eight crosses along with their 11 parental lines were sown in a randomized complete block design in triplicate under optimal and heat stress conditions. Fifteen different morpho-physiological and grain quality parameters were recorded at different growth stages. Analysis of variance illustrated the presence of highly significant differences among wheat genotypes for all traits under both optimal and heat stress conditions. The results of combining ability unveiled the predominant role of non-additive gene action in the inheritance of almost all the studied traits under both conditions. Among parents, 3 parental lines WL-27, WT-39, and WL-57 showed good combining ability under both normal and heat stress conditions. Among crosses, WL-8 × WT-17, WL-37 × WT-17, WL-7 × WT-39, and WL-37 × WT-39 portrayed the highest specific combining ability effects for grain yield and its related traits under optimal as well as heat stress conditions. Biplot and cluster analysis confirmed the results of general and specific combining ability by showing that these wheat crosses belonged to a highly productive and heat tolerant cluster. Correlation analysis revealed a significantly positive correlation of grain yield with net photosynthetic rate, thousand-grain rate, and the number of grains per spike. The designated parental lines and their crosses were selected for future breeding programs in the development of heat resilient, climate-smart wheat genotypes. View Full-Text
Keywords: heat resilient; non-additive gene action; line × tester analysis; specific combining ability heat resilient; non-additive gene action; line × tester analysis; specific combining ability
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MDPI and ACS Style

Riaz, M.W.; Yang, L.; Yousaf, M.I.; Sami, A.; Mei, X.D.; Shah, L.; Rehman, S.; Xue, L.; Si, H.; Ma, C. Effects of Heat Stress on Growth, Physiology of Plants, Yield and Grain Quality of Different Spring Wheat (Triticum aestivum L.) Genotypes. Sustainability 2021, 13, 2972. https://doi.org/10.3390/su13052972

AMA Style

Riaz MW, Yang L, Yousaf MI, Sami A, Mei XD, Shah L, Rehman S, Xue L, Si H, Ma C. Effects of Heat Stress on Growth, Physiology of Plants, Yield and Grain Quality of Different Spring Wheat (Triticum aestivum L.) Genotypes. Sustainability. 2021; 13(5):2972. https://doi.org/10.3390/su13052972

Chicago/Turabian Style

Riaz, Muhammad W., Liu Yang, Muhammad I. Yousaf, Abdul Sami, Xu D. Mei, Liaqat Shah, Shamsur Rehman, Liu Xue, Hongqi Si, and Chuanxi Ma. 2021. "Effects of Heat Stress on Growth, Physiology of Plants, Yield and Grain Quality of Different Spring Wheat (Triticum aestivum L.) Genotypes" Sustainability 13, no. 5: 2972. https://doi.org/10.3390/su13052972

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