Analysis of divergence for agronomic and nutritional determinants of quality protein maize

摘要

Genetic diversity was evaluated among 53 Quality Protein Maize (QPM) genotypes for 12 traits in three years (1999, 2000 and 2001) using multivariate analysis (D2 statistic). The genotypes where grouped into 11 clusters. Inter-cluster D2 values ranged from 60.4 (between cluster 1 and VI) to 501.9 (between cluster V and IX). The following traits; plant height, days to physiological maturity, days to silk, protein content and grain yield accounted for over 70% genetic diversity among the genotypes.