Abstract: In order to define the relationship among the agronomic characters and yield and nutrition qualitative of maize population, 12 maize populations was studied with the method of grey correlation degree analysis. The results showed that the most relative agronomic characters to maize yields were seed rate, grain numbers per row, kernel diameter, plant height, and 100-seed weight, etc; grain numbers of kernel, 100-seed weight, grain numbers per row, seed rate, and kernel row number were directly bound with content of crude protein, crude fat, crude starch, and lysine. The results of grey relativity among main agronomic characters showed that high seed rate and 100-seed weight should be paid more attention on the breeding selection of maize yields and nutritious qualities, and the selection of kernel row number, grain number per row and kernel diameter also need to be laid some stress on, ensuring appropriate plant height. This study provide scientific basis for the maize breeding selection on high yield and quality.

Key words: Maize population, Agronomic character, Yield, Nutritious traits, Grey relativity analysis

CLC Number: 

• S513