grain yield components

• 产量构成

grain yield components的用法和样例：

例句

1. Restrictive and stimulative quantity relationships existed among lint yield components.
   皮棉产量构成因素间存在制约与促进的数量关系。
2. Also yield construction of the varieties was analyzed and the result was recognized as the base of alfalfa management.
   同时，分析各品种的产量构成，并将分析结果作为制定栽培管理措施的依据。