Research article EVALUATION OF GENETIC DIVERSITY OF 10 GENOTYPE ZEA MAYS IN TERMS OF SOME GERMINATION COMPONENTS

In order to study genetic diversity of 10 genotype in terms of germination components an experiment was conducted at laboratory of agriculture faculty of Islamic Azad University, Dezful branch, as randomized complete blocks design with three replications, in year 2013. The traits measured during the study included final germination percent (FGP), coefficient of velocity of germination (CVG), germination index (GI), germination rate index (GRI), mean germination time (MGT), germination speed (Rs) and mean daily germination (MDG) and vigor index (VI). Estimation of phenotypic and genotypic coefficients for various traits revealed that genotypes being studied were more genetically diverse in terms of FGP, GI, GRI, Rs and VI of sample than in terms of other traits. Study genotypes were classified into 2 groups using cluster analysis. Mean squares between the groups were significant for all the traits. Genotypes numbered 1, 3, 4 and 9 were classified as group 1. These genotypes were in a poor status for all the traits. Genotypes numbered 2, 5, 6, 7, 8 and 10 were classified as group 2. In contrast, these genotypes had the highest values for all the traits.