关键词: 小麦, 品种, 蛋白质含量, 氨基酸含量, 营养平衡

Abstract: The protein and amino acid contents of 23 elite lines which were obtained from 99E18×Chuannong16 were analyzed. 1 line had higher protein content than Chuannong16. Amino acid balance was evaluated according to the proportion of essential amino acid(EAA), EAA/protein and EAA index. 22 lines had higher values of the two indices than Chuannong16 which demonstrated the amino acid balance of these lines were better than Chuannong16. The results showed that the nutritive qualities of these lines were improved on the basis of Chuannong16. The correlations among the protein content, the total amino acid content and each amino acid content were analyzed. The protein content was significantly positive related to the total amino acid content. Cluster analysis was performed by using the amino acid content, and the 23 lines were classified into 2 groups.

Key words: wheat, variety, protein content, amino acid content, nutrition balance