The constituent factors of corn grain yield are the number of panicles per unit area， the number of kernels and the weight of kernels.
The constituent factors of corn grain yield are the number of panicles per unit area， the number of kernels and the weight of kernels.
A.正确
B.错误
正确答案：正确
Tag：CropCultivationScience
时间：2022-02-28 15:25:21