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Heat stress tolerance indices for identification of the heat tolerant wheat genotypes
Heat stress is one of the major challenges in wheat cultivation because it coincides with the flowering period and limits the crop productivity. This study was conducted for evaluation of 50 wheat genotypes to identify the heat stress tolerant genotypes for improvement of stress tolerance. All genot...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10322891/ https://www.ncbi.nlm.nih.gov/pubmed/37407639 http://dx.doi.org/10.1038/s41598-023-37634-8 |
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author | Lamba, Kavita Kumar, Mukesh Singh, Vikram Chaudhary, Lakshmi Sharma, Rajat Yashveer, Shikha Dalal, M. S. |
author_facet | Lamba, Kavita Kumar, Mukesh Singh, Vikram Chaudhary, Lakshmi Sharma, Rajat Yashveer, Shikha Dalal, M. S. |
author_sort | Lamba, Kavita |
collection | PubMed |
description | Heat stress is one of the major challenges in wheat cultivation because it coincides with the flowering period and limits the crop productivity. This study was conducted for evaluation of 50 wheat genotypes to identify the heat stress tolerant genotypes for improvement of stress tolerance. All genotypes were cultivated for two consecutive years (2018–2020) under normal and late sown conditions. The results of the study revealed that the combined analysis of variance indicated significant variations among genotypes for all the studied stress indices. The reduction in mean grain yield of all genotypes under stress condition as compared to non-stress condition, indicating that the heat stress significantly affect the grain yield. The correlation analysis showed that the negative correlation of tolerance index and stress susceptibility percentage index with the grain yield of genotypes under heat stress condition (Ys) and a highly positive correlation of stress tolerance index, mean productivity, geometric mean, harmonic mean and mean relative performance with grain yield (Yp and Ys) under both conditions, helped accurately to identify the desirable genotypes. From the results obtained from principal component, biplot and cluster analysis, it was reported that HD 2967, WH 1249, HI 1617, WH 1202, WH 1021 and WH 1142 are suitable and good yielding genotypes under both conditions. Thus, above genotypes can be used for cultivation at high temperature or as genetic resources for introducing genetic variations in wheat genotypes to improve stress tolerance. |
format | Online Article Text |
id | pubmed-10322891 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-103228912023-07-07 Heat stress tolerance indices for identification of the heat tolerant wheat genotypes Lamba, Kavita Kumar, Mukesh Singh, Vikram Chaudhary, Lakshmi Sharma, Rajat Yashveer, Shikha Dalal, M. S. Sci Rep Article Heat stress is one of the major challenges in wheat cultivation because it coincides with the flowering period and limits the crop productivity. This study was conducted for evaluation of 50 wheat genotypes to identify the heat stress tolerant genotypes for improvement of stress tolerance. All genotypes were cultivated for two consecutive years (2018–2020) under normal and late sown conditions. The results of the study revealed that the combined analysis of variance indicated significant variations among genotypes for all the studied stress indices. The reduction in mean grain yield of all genotypes under stress condition as compared to non-stress condition, indicating that the heat stress significantly affect the grain yield. The correlation analysis showed that the negative correlation of tolerance index and stress susceptibility percentage index with the grain yield of genotypes under heat stress condition (Ys) and a highly positive correlation of stress tolerance index, mean productivity, geometric mean, harmonic mean and mean relative performance with grain yield (Yp and Ys) under both conditions, helped accurately to identify the desirable genotypes. From the results obtained from principal component, biplot and cluster analysis, it was reported that HD 2967, WH 1249, HI 1617, WH 1202, WH 1021 and WH 1142 are suitable and good yielding genotypes under both conditions. Thus, above genotypes can be used for cultivation at high temperature or as genetic resources for introducing genetic variations in wheat genotypes to improve stress tolerance. Nature Publishing Group UK 2023-07-05 /pmc/articles/PMC10322891/ /pubmed/37407639 http://dx.doi.org/10.1038/s41598-023-37634-8 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/ Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Lamba, Kavita Kumar, Mukesh Singh, Vikram Chaudhary, Lakshmi Sharma, Rajat Yashveer, Shikha Dalal, M. S. Heat stress tolerance indices for identification of the heat tolerant wheat genotypes |
title | Heat stress tolerance indices for identification of the heat tolerant wheat genotypes |
title_full | Heat stress tolerance indices for identification of the heat tolerant wheat genotypes |
title_fullStr | Heat stress tolerance indices for identification of the heat tolerant wheat genotypes |
title_full_unstemmed | Heat stress tolerance indices for identification of the heat tolerant wheat genotypes |
title_short | Heat stress tolerance indices for identification of the heat tolerant wheat genotypes |
title_sort | heat stress tolerance indices for identification of the heat tolerant wheat genotypes |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10322891/ https://www.ncbi.nlm.nih.gov/pubmed/37407639 http://dx.doi.org/10.1038/s41598-023-37634-8 |
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