Analysis of High Yield,Stable Yield and Adaptability of A New Early and Medium Mature Cotton Vari-ety,Liaomian 19
In order to comprehensively understand the production characteristics of Liaomian19 variety and clarify the relationship be-tween yield and constituent factors.The summary data from 2016 to 2018 about regional and production trials of medium maturity cot-ton in Shandong province.Through indicators such as yield increase rate,coefficient of variation,high stability coefficient,fitness,and path coefficient,the high-yield,stability,and adaptability of Liaomian 19 were analyzed.The results showed that the yield of Liaomian 19 increased by 12.3%compared to the control,and the yield increase rate ranked 1.7th.The coefficient of variation of yield was 18.4%,lower than the control(22.3%).The high stability coefficient was 83.9%,higher than the control(70.8%).The fitness was 79.2%,higher than the control by 8.3%.It had seen that this variety had good high and stable yield,and wide adaptability.Correlation analysis showed that the lint yield was positively correlated with the number of bolls per plant,lint percentage,and single boll weight,while single boll weight was negatively correlated with the number of bolls per plant and lint percentage.Path analysis could effectively display the comprehensive effects of different traits on lint yield.Among them,the number of bolls per plant,single boll weight,and lint percentage had a significant positive effect on yield.By increasing the values of these three traits,lint yield could be effectively improved.
万方数据
维普
