Abstract:

Relativity between characters of ear and yield about 16 maize hybrids were studied with the grey system theory. The results showed that the magnitude on effects of vary characters on the yield in turn was kernel/m2、1000-kernel weight、kernel per ear、produced seed ratio、ear rows、kernel number、ear diameter、ear number/ha、ear length、bare top length. These better plant properties of maize hybrid fit in with high-yield cultivation indicated the more number of kernel/m2 and kernel per ear、the hinger weight of 1000-kerne、the hingter produced seed ratio.The ear rows and ear diameter have greater jnfluence on yield than the kernels per row and ear length.