Analysis of High-yielding Cultivation Approach for Yongyou 1540 Planted as Double-cropping Late Rice
To explore the high-yielding cultivation technology for Yongyou 1540 planted as double-cropping late rice,the data on effective panicle number,the number of total spikelets per panicle,seed setting rate,the number of filled grains per panicle,1 000-grain weight and yield were collected and analyzed from 69 groups of Yongyou 1540 grown as double-cropping late rice in different regions of Zhejiang Province from 2016 to 2021,and the yield and its components at different yield levels of Yongyou 1540 were compared.The results showed that the high-yielding cultivation approach for Yongyou 1540 was to pay high attention to increase of effective panicle number and the number of filled grains per panicle,strive for the balance between panicle and grain number,coordinate panicle and grain structure and improve the seed setting rate,and on this basis,play the role of yield increasing effect of 1 000-grain weight,so as to build the overall coordinated yield structure and achieve high yield.
hybrid riceYongyou 1540double-cropping late ricehigh-yielding cultivation
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万方数据
