Improving maize grain yield by formulating plant growth regulator strategies in North China

Plant growth regulators (PGRs) are artificially synthesized compounds that have become an important technical guarantee for agricultural production. EDAH (containing 27% ethephon and 3% DA-6) has been proven to inhibit stalk elongation, promote stalk bold and increase mechanical strength and number...

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Bibliographic Details
Published in:Journal of Integrative Agriculture 2021-02, Vol.20 (2), p.622-632
Main Authors: GONG, Li-sha, QU, Shu-jie, HUANG, Guan-min, GUO, Yu-ling, ZHANG, Ming-cai, LI, Zhao-hu, ZHOU, Yu-yi, DUAN, Liu-sheng
Format: Article
Language:English
Subjects:
canopy structure
lodging resistance
photosynthetic
plant grown regulators
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Summary:Plant growth regulators (PGRs) are artificially synthesized compounds that have become an important technical guarantee for agricultural production. EDAH (containing 27% ethephon and 3% DA-6) has been proven to inhibit stalk elongation, promote stalk bold and increase mechanical strength and number of vascular bundles. DA-6 could enhance plant photosynthetic capacity and promote cell division and growth. In our study, experiments were performed at summer maize growing season during 2018–2019. The result showed that plant height, ear height and center of gravity height of maize with EDAH+DA-6 treatment were decreased by 10.18, 16.77 and 13.21%, respectively; leaf area and leaf area index also significantly (P
ISSN:2095-3119
2352-3425
DOI:10.1016/S2095-3119(20)63453-0