Genetic variability and diversity for protein and calcium contents in finger millet (Eleusine coracana (L.) Gaertn) in relation to grain color.

摘要

Analysis of 36 genotypes of finger millet with varying seed colours revealed a wide range of protein and calcium contents. White seeded genotypes had higher protein contents, while brown seeded types had a wide range of values. Brown-seeded genotypeGE2500 had the highest protein content. Although protein content had significant negative association with calcium content, white-seeded types had moderate levels of calcium. The genotypic coefficients of variability were moderate and high for protein and calcium, respectively. High heritability coupled with high genetic advance indicated their governance by additive gene action. A negative significant correlation was observed between protein content and grain yield. Mahalanobis D2 analysis grouped the36 genotypes into 8 clusters. Clustering patterns failed to indicate any relationship between genetic diversity and geographic diversity. Based on genetic diversity and performance, genotypes MS1168, M 174 and CO13 were suitable for use as parents in ahybridization programme for improving yield; genotypes MS1168, MS174 and MS2869 for improving protein content and Malawi 1915 and CO 11 for improving calcium content.