数字农科院2.0

Transgenerational impact of climatic changes on cotton production

文献类型： 外文期刊

作者： Muhammad Awais Farooq;Waqas Shafqat Chattha;Muhammad Sohaib Shafique;Umer Karamat;Javaria Tabusam;Sumer Zulfiqar;Amir Shakeel

作者机构：

关键词： antioxidants;climate change;drought;Gossypium hirsutum L. (cotton);high temperature;reactive oxygen species (ROS)

期刊名称： Frontiers in Plant Science

ISSN： 1664-462X

年卷期： 2023 年 14 卷

页码：

收录情况： SCIE（2023版）

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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