小麦产量因素对籽粒容重影响的通径分析

Path Analysis for Effect of Wheat Yield Factor on the Bulk Density

通过选取中国作物网物质信息网上的2994条包括所需信息的小麦数据,进行通径分析,得到小麦产量因素对容重影响的方程式.选用数据里面的容重作为评判因素,因为容重可以作为小麦的等级评判标准,与小麦贮藏、出粉率等有关.本文讨论了小麦的株高、穗长、穗粒数、千粒重等对容重的影响.选用通径分析模型因为它可以同时得到小麦产量构成因素对容重的影响和各个因素之间的结构关系.通过得到的小麦籽粒容重关于各个因素的关系式,得出影响籽粒容重最大的因素,从而指导小麦育种专家选择出高品质的小麦品种,对小麦育种和生产都有指导意义.

Based on 2994 wheat data including all information from the Chinese Crop Germplasm Resources Information System,we built a Path analysis model to get the effect of wheat yield factor on the bulk density.Bulk density was selected as the evaluation factors,because bulk density can be used as the criteria of wheat quality grade,which was closely related to wheat flour.This paper discusses the relationship of bulk density with wheat high,panicle long,grain weight and grain number.The reason for path analysis was that it can handle yield factor and their relationships at the same time.We can tell by the expression of the bulk density which has the closest connection with the bulk density,which also help the wheat breeding expert find the better wheat and enhance the production of wheat.