Effects of sowing date on the numbers of branches and spikelets per panicle of machine-transplanted indica hybrid rice at different tiller positions

In order to explore the effects of sowing date on the numbers of branches and spikelets per panicle of machine-transplanted indica hybrid rice on the main stems（MS）, primary tillers（PT） and secondary tillers（ST）, a split plot field experiment was conducted with five sowing dates by using two indica...

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Bibliographic Details
Published inZuo wu xue bao Vol. 47; no. 10; p. 2012
Main Authors Zhong, Xiao-Yuan, Deng, Fei, Chen, Duo, Tian, Qing-Lan, Zhao, Min, Wang, Li, Tao, You-Feng, Ren, Wan-Jun
Format Journal Article
LanguageChinese
Published Beijing Chinese Academy of Agricultural Sciences (CAAS) 01.01.2021
Subjects
Correlation analysis
Correlation coefficient
Correlation coefficients
Crop yield
Rice
Tillers
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Summary:In order to explore the effects of sowing date on the numbers of branches and spikelets per panicle of machine-transplanted indica hybrid rice on the main stems（MS）, primary tillers（PT） and secondary tillers（ST）, a split plot field experiment was conducted with five sowing dates by using two indica hybrid rice varieties（F you 498 and Yixiangyou 2115） as materials. The results were as follows:（1） The numbers of spikelets on the primary branches and secondary branches, and the numbers of secondary branches on different tiller positions ranked: MS>PT>ST; the numbers of spikelets on the primary branches and secondary branches, and the numbers of secondary branches on the MS and PT, as well as the whole hill, were increased with delaying sowing date. These contributed to the increase in the numbers of total branches and spikelets per panicle on the MS, PT, and averaged over all panicles in a hill with delaying sowing date.（2） The correlation analysis showed that the numbers of total branches and spikelets per pani
ISSN:0496-3490