Correlation Analysis of Wheat Yield Components in Regional Trial of Southern Xinjiang
In order to gain a deeper understanding of the innovation status and future development direction of wheat breeding in the southern Xinjiang,18 experimental varieties (lines) of winter wheat in the southern Xinjiang from 2021—2022 were used as research materials to conduct genetic variation,correlation regression and path analysis between yield characteristics and yield. The aim is to explore the interrelationship between the three factors of wheat yield composition and yield in southern Xinjiang. The results show that the variation coefficient of yield is 5.63%,and the order of variability of the three main factors affecting yield is grain number per spike (12.30%),thousand-grain weight (10.04%) and harvested panicles (4.39%). Through correlation analysis,there is a very significant positive correlation between harvested panicles and yield,and the correlation coefficient was 0.7600,followed by thousand-grain weight and grain number per panicle. Through path analysis,it is found that among the three factors affecting yield,the maximum direct path coefficient of harvested panicles is 0.8891,and the minimum direct path coefficient of thousand grain weight is 0.0326. The direct contribution of harvested panicles to yield is the most significant. Based on the analysis results and the ecological conditions of the four prefectures in southern Xinjiang,the main goal of breeding new wheat varieties is to focus on multi spike varieties,while striving to improve thousand-grain weight and maintain the stability of grain number per spike.
国家科技期刊平台
NSTL
万方数据
