PJB-2018-522
Comparative performance of CGR3 and CGR3-1 on photosynthetic characteristics and yield of mung bean (Phaseolus radiata)
Guanqiang Zuo, Guangrong Cai , Qi Yu, Dianfeng Zheng and Naijie Feng
Abstract
The effects of methyl 1-(3, 3-dimenthyl-2-oxobutyl)-1H-1, 2, 4-triazole-3-carboxylate (CGR3) and 1-(3,3-dimethyl-2-oxobutyl)-1H-1, 2, 4-triazole-3-carboxylic acid (CGR3-1), as two new plant growth regulators, on photosynthetic characteristics and mung bean yield were investigated in this study. Both regulators improved the net photosynthetic rate (PN), stomatal conductance (gs), intercellular CO2 concentration (Ci) and transpiration rate (E); CGR3-1 had a larger impact than CGR3. In terms of photosynthetic efficiency, CGR3-1 showed higher effectiveness. Considering photosynthetic pigments, the two regulators enhanced the contents of chlorophyll a, chlorophyll b, chlorophyll (a+b) and carotenoid. The application of CGR3-1 (CGR3) significantly increased (decreased) the contents of soluble sugar and starch. The results indicated that CGR3-1 was more effective in improving the photosynthetic characteristics and yield of mung bean and can be a widely adopted strategy for producers
To Cite this article:
Zuo, G., G. Cai , Qi Yu, D. Zheng and N. Feng. 2020. Comparative performance of CGR3 and CGR3-1 on photosynthetic characteristics and yield of mung bean (Phaseolus radiata). Pak. J. Bot., 52(1): DOI: http://dx.doi.org/10.30848/PJB2020-1(38)
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