Correlation Analysis of Agronomic Traits and Yield of Rice Varieties Tested at Tieling in Middle Maturity Group of Liaoning Province in 2022
Fourteen rice varieties tested in Tieling(mid-maturing group regional trial)in 2022 were selected.By observing their plant height,total grains,panicle length,panicle number per hole,seed setting rate,1000-grain weight and yield,the relationship between agronomic characters and yield of the tested varieties was studied by means of correlation analysis and difference significance analysis.The results showed that the total number of grains per panicle was positively correlated with panicle length,the total number of grains per panicle was negatively correlated with panicle number per hole,and the yield was negatively correlated with 1000-grain weight.In Tieling area,selecting varieties with moderate tillers and more total grains per panicle with large panicle and small grains may be easier to produce high yield,but it is also easy to have poor grain filling and lower seed setting rate in secondary branches at the lower panicle.It is necessary to improve rice planting methods and techniques to improve seed setting rate,which can further improve rice yield.
RiceRegional test of middle ripening groupAgronomic traitsYieldCorrelation analysis
万方数据
维普
