A review of succession studies on japonica rice varieties in Zhejiang Province
The research on the breeding of new rice varieties was carried out earlier in Zhejiang Province,a relatively economically developed region in China.The varieties planted in Zhejiang Province basically include various rice types,among which japonica rice is the main planting type,especially late japonica rice.Although the proportion of conventional rice area has been decreasing since the emergence of hybrid rice,it still has an irreplaceable position in production due to the balance between yield and quality of late japonica rice.Based on the analysis of the four factors that had the greatest impact on the yield of late japonica rice,it was found that the yield could be improved by increasing the number of grains per spike,the number of effective panicles and the 1000-grain weight.In addition to the improvement of yield,rice quality has also become the main goal of late japonica rice breeding,so rice quality has been regarded as an important breeding goal in the current breeding work.In this paper,we analyzed the growth period,yield,quality and disease resistance of late japonica rice varieties approved in Zhejiang Province in the past 20 years,and summarized the changes of traits of japonica rice varieties in Zhejiang Province,in order to provide a reference for the breeding work in Zhejiang Province.
NETL
NSTL
万方数据
维普
