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Effects of Different Salt Stress on Physiological Growth and Yield of Drip Irrigation Cotton (Gossypium hirsutum L.)

Jiangchun Chen1, Zhenhua Wang1,2,*, Jinzhu Zhang1, Weibin Cao1

1 Shihezi University, Shihezi, 832000, China
2 Key Laboratory of Modern Water-Saving Irrigation of Xinjiang Production and Construction Corps, Shihezi University, Shihezi, 832000, China

* Corresponding Author: Zhenhua Wang. Email: email

Intelligent Automation & Soft Computing 2020, 26(5), 949-959. https://doi.org/10.32604/iasc.2020.010127

Abstract

This study adopted the method of barrel planting to artificially set the salt content of six different soils (CK:1.5 g kg-1 , T1:3.0 g kg-1 , T2:4.0 g kg-1 , T3:5.3 g kg-1 , T4:6.2 g kg-1 , T5:7.3 g kg-1 ) to study the effects of different degrees of mild salt stress on photosynthetic physiology, growth index and yield of cotton under drip irrigation. The results showed that with the increasing salt stress and the prolongation of stress time, the photosynthetic physiological indexes of cotton showed a downward trend (P < 0.01), and the plant height and leaf area were significantly affected by salt stress in the early growth stage. Furthermore, the comprehensive analysis showed that compared with moderate and severe salt stress, stomatal limitation was the cause of photosynthetic rate decline in cotton under mild salt stress at early growth stage, while non-stomatal limitation was at late growth stage. Photosynthetic parameters were closely related to the degree of salt stress, and cotton yield showed a good correlation with photosynthetic indicators. This experiment could provide a theoretical basis for the cultivation and management of cotton in mild saline-alkali land in Xinjiang.

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APA Style
Chen, J., Wang, Z., Zhang, J., Cao, W. (2020). Effects of different salt stress on physiological growth and yield of drip irrigation cotton (gossypium hirsutum L.). Intelligent Automation & Soft Computing, 26(5), 949-959. https://doi.org/10.32604/iasc.2020.010127
Vancouver Style
Chen J, Wang Z, Zhang J, Cao W. Effects of different salt stress on physiological growth and yield of drip irrigation cotton (gossypium hirsutum L.). Intell Automat Soft Comput . 2020;26(5):949-959 https://doi.org/10.32604/iasc.2020.010127
IEEE Style
J. Chen, Z. Wang, J. Zhang, and W. Cao "Effects of Different Salt Stress on Physiological Growth and Yield of Drip Irrigation Cotton (Gossypium hirsutum L.)," Intell. Automat. Soft Comput. , vol. 26, no. 5, pp. 949-959. 2020. https://doi.org/10.32604/iasc.2020.010127



cc Copyright © 2020 The Author(s). Published by Tech Science Press.
This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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