Effects of Spraying Different Biochemical Regulators in Different Periods on Yield and Lodging Resistance of High-Quality Rice
Received date: 2021-07-07
Online published: 2021-09-20
The effects of spraying different biochemical regulators at different periods on the yield and lodging resistance of high-quality hybrid rice Longjingyou 570 were studied under field cultivation conditions. The results showed that spraying paclobutrazol, calcium diclofenac and other biochemical regulators compounds at the jointing stage or at the jointing stage and the heading stage significantly shortened the base internode length of Longjingyou 570, enhanced the ability to resist lodging, and significantly increased the yield. The treatment of spraying biochemical regulators only at the heading stage had a certain effect on lodging resistance and yield compared with the sprayed water treatment, but the difference was not significant.
Key words： high-quality hybrid rice; biochemical regulator; lodging resistance; yield
Fangbo CAO, Tao LEI, Yu LIU, Jialin CAO, Jiana CHEN, Min HUANG, Yingbin ZOU . Effects of Spraying Different Biochemical Regulators in Different Periods on Yield and Lodging Resistance of High-Quality Rice[J]. China Rice, 2021 , 27(5) : 76 -78 . DOI: 10.3969/j.issn.1006-8082.2021.05.016
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