High dosage of mepiquat chloride delays defoliation of harvest aids in cotton

Ling, Meng; Yu, Keke; Wei, Zexin; Li, Kexin; Dai, Jianlong; Li, Fang; Qi, Hongyan; Sun, Lixin; Zhang, Lizhen; Dong, Hezhong; Lu, Zhengying; Xu, Dongdong; Zhang, Mingcai; Du, Mingliang; Tian, Xiaoli; Li, Zhaohu

doi:10.1016/j.indcrop.2023.116998

Cited by 3 publications

(3 citation statements)

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“…GA content inhibits cell elongation, which restricts the stem’s vertical growth [ 81 ]. MC impacts cotton plants in ways such as decreasing the stem and leaf growth but increasing the maturity [ 21 ]. The MC treatment balances vegetative and reproductive development in cotton, improving the fiber quality and yield [ 82 ].…”

Section: Role Of MC and Mt In Plant Growth Biochemistry And Yield Und...mentioning

confidence: 99%

“…MC treatment affects the physiological activity of cotton leaves [ 83 ]. Cotton plants had enhanced net photosynthetic activity by producing thicker weight leaves with higher chlorophyll activity [ 21 ]. The most crucial metabolic activity influencing plant growth and yield is photosynthesis.…”

Section: Role Of MC and Mt In Plant Growth Biochemistry And Yield Und...mentioning

confidence: 99%

“…In cotton, MC increased the number of photoassimilates produced by the leaves, altered the source–sink relationship, decreased ribulose 1,5-bisphosphate carboxylase/oxygenase (RuBisCO) activity, and increased stomatal conductivity [ 20 ]. MC application has been shown to increase the functional stage of cotton leaves by expanding the content of active cytokinin (CK) in the middle and final phases of leaf growth, decreasing GA synthesis, delaying the peak time of abscisic acid (ABA) and ethylene (ET), and delaying leaf senescence [ 21 ]. However, the role of MC in these morpho-physiological activities of cotton during abiotic stress remains unknown.…”

Section: Introductionmentioning

confidence: 99%

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The Roles of Mepiquate Chloride and Melatonin in the Morpho-Physiological Activity of Cotton under Abiotic Stress

Wu,

Liu,

et al. 2023

IJMS

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Cotton growth and yield are severely affected by abiotic stress worldwide. Mepiquate chloride (MC) and melatonin (MT) enhance crop growth and yield by reducing the negative effects of abiotic stress on various crops. Numerous studies have shown the pivotal role of MC and MT in regulating agricultural growth and yield. Nevertheless, an in-depth review of the prominent performance of these two hormones in controlling plant morpho-physiological activity and yield in cotton under abiotic stress still needs to be documented. This review highlights the effects of MC and MT on cotton morpho-physiological and biochemical activities; their biosynthetic, signaling, and transduction pathways; and yield under abiotic stress. Furthermore, we also describe some genes whose expressions are affected by these hormones when cotton plants are exposed to abiotic stress. The present review demonstrates that MC and MT alleviate the negative effects of abiotic stress in cotton and increase yield by improving its morpho-physiological and biochemical activities, such as cell enlargement; net photosynthesis activity; cytokinin contents; and the expression of antioxidant enzymes such as catalase, peroxidase, and superoxide dismutase. MT delays the expression of NCED1 and NCED2 genes involved in leaf senescence by decreasing the expression of ABA-biosynthesis genes and increasing the expression of the GhYUC5, GhGA3ox2, and GhIPT2 genes involved in indole-3-acetic acid, gibberellin, and cytokinin biosynthesis. Likewise, MC promotes lateral root formation by activating GA20x genes involved in gibberellin catabolism. Overall, MC and MT improve cotton’s physiological activity and antioxidant capacity and, as a result, improve the ability of the plant to resist abiotic stress. The main purpose of this review is to present an in-depth analysis of the performance of MC and MT under abiotic stress, which might help to better understand how these two hormones regulate cotton growth and productivity.

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Section: Role Of MC and Mt In Plant Growth Biochemistry And Yield Und...mentioning

confidence: 99%

Section: Role Of MC and Mt In Plant Growth Biochemistry And Yield Und...mentioning

confidence: 99%