文献类型： 外文期刊
作者： Farooq, Muhammad Awais 1 ; Chattha, Waqas Shafqat 1 ; Shafique, Muhammad Sohaib 1 ; Karamat, Umer 1 ; Tabusam, Javaria 1 ; Zulfiqar, Sumer 1 ; Shakeel, Amir 1 ;
作者机构： 1.Univ Agr Faisalabad, Dept Plant Breeding & Genet, Faisalabad, Pakistan
2.Natl Inst Biotechnol & Genet Engn, Mol Virol Lab, Faisalabad, Pakistan
3.Hebei Agr Univ, Coll Hort, Collaborat Innovat Ctr Vegetable Ind Hebei, State Key Lab North China Crop Improvement & Regul, Beijing, Peoples R China
4.Chinese Acad Agr Sci, Inst Crop Sci, Beijing, Peoples R China
关键词： Gossypium hirsutum L; (cotton); climate change; high temperature; drought; antioxidants; reactive oxygen species (ROS)
期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：5.6； 五年影响因子：6.8 ）
ISSN： 1664-462X
年卷期： 2023 年 14 卷
页码：
收录情况： SCI
摘要： Changing climatic conditions are an increasing threat to cotton production worldwide. There is a need to develop multiple stress-tolerant cotton germplasms that can adapt to a wide range of environments. For this purpose, 30 cotton genotypes were evaluated for two years under drought (D), heat (H), and drought + heat stresses (DH) under field conditions. Results indicated that plant height, number of bolls, boll weight, seed cotton yield, fiber fineness, fiber strength, fiber length, K+, K+/Na+, relative water contents (RWC), chlorophyll a and b, carotenoids, and total soluble proteins got reduced under D and H and were lowest under DH, whereas superoxidase dismutase (SOD), H2O2, Na+, GOT%, total phenolic contents, ascorbate, and flavonoids got increased for consecutive years. Correlation studies indicated that there was a positive correlation between most of the traits, but a negative correlation with H2O2 and Na+ ions. PCA and clustering analysis indicated that MNH-786, KAHKSHAN, CEMB-33, MS-71, FH-142, NIAB-820, CRS-2007, and FH-312 consistently performed better than other genotypes for most traits under stress conditions. Identified genotypes can be utilized in the future cotton breeding program to develop high-yielding, climate change-resilient cotton.
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