Superior leaf physiological performance contributes to sustaining the final yield of cotton (Gossypium hirsutum L.) genotypes under terminal heat stress
Article
Article Title | Superior leaf physiological performance contributes to sustaining the final yield of cotton (Gossypium hirsutum L.) genotypes under terminal heat stress |
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ERA Journal ID | 213953 |
Article Category | Article |
Authors | Sarwar, Muhammad, Saleem, Muhammad Farrukh, Ullah, Najeeb, Ali, Asjad, Collins, Brian, Shahid, Muhammad, Munir, Muhammad Kashif, Chung, Sang-Min and Kumar, Manu |
Journal Title | Physiology and Molecular Biology of Plants |
Journal Citation | 29 (5), pp. 739-753 |
Number of Pages | 15 |
Year | 2023 |
Publisher | Springer |
Place of Publication | India |
ISSN | 0971-5894 |
0974-0430 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s12298-023-01322-8 |
Web Address (URL) | https://link.springer.com/article/10.1007/s12298-023-01322-8 |
Abstract | This study aimed to optimize methods for identifying heat-tolerant and heat-susceptible cotton plants by examining the relationship between leaf physiology and cotton yield. Cotton accessions were exposed to elevated temperatures through staggered sowing and controlled growth conditions in a glasshouse. Based on their yield performance, leaf physiology, cell biochemistry, and pollen germination, the accessions were categorized as heat-tolerant, moderately tolerant, or susceptible. High temperatures had a significant impact on various leaf physiological and biochemical factors, such as cell injury, photosynthetic rate, stomatal conductance, transpiration rate, leaf temperature, chlorophyll fluorescence, and enzyme activities. The germination of flower pollen and seed cotton yield was also affected. The study demonstrated that there was a genetic variability for heat tolerance among the tested cotton accessions, as indicated by the interaction between accession and environment. Leaf gas exchange, cell biochemistry, pollen germination, and cotton yield were strongly associated with heat-sensitive accessions, but this association was negligible in tolerant accessions. Principal component analysis was used to classify the accessions based on their performance under heat stress conditions. The findings suggest that leaf physiological traits, cell biochemistry, pollen germination, and cotton yield can be effective indicators for selecting heat-tolerant cotton lines. Future research could explore additional genetic traits for improved selection and development of heat-tolerant accessions. |
Keywords | Cotton; Temperature extreme; Cell injury; Genetic variability; PS-II ; Yield |
Article Publishing Charge (APC) Funding | Other |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 310806. Plant physiology |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Agriculture Faisalabad, Pakistan |
Qatar University, Qatar | |
Department of Agriculture and Fisheries, Queensland | |
James Cook University | |
Agronomic Research Station, Pakistan | |
Ayub Agricultural Research Institute (AARI), Pakistan | |
Dongguk University, Korea |
https://research.usq.edu.au/item/z53yx/superior-leaf-physiological-performance-contributes-to-sustaining-the-final-yield-of-cotton-gossypium-hirsutum-l-genotypes-under-terminal-heat-stress
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