Amino acid composition of South African and Australian wheat varieties as a function of their nitrogen content

Samples of six varieties of South African and Australian wheats sown on 4 dates were found to range in total nitrogen content from 2.42 to 3.86%. Analyses of these samples indicated that no major change in the proportions of the amino acids occurred between samples of varying nitrogen content, and an inverse relationship between lysine and nitrogen content (reported in the literature for wheats of low protein content) could not be demonstrated.