Evaluation of Genotype, Environment and Genotype × Environment Interaction Effects on Some of Important Quantitative Trits of Faba Bean (Vicia faba L.)

Faba bean (Vicia faba L.) is a grain legume that grown for its high protein seeds, which is using as human food and animal feeding. Genetic variability of the traits is important in breeding programes, so that selection gain depends on the existence of genetic variability of traits. Therefore, an investigation was carried out to select the most successful faba bean genotype(s) and to assess the genetic diversity related to the morphological and agronomical traits in some of faba bean genotypes at two locations in Guilan and Lorestan provinces. Results of combined analysis of variance revealed that genotype ×environment interaction effects were significant for all of the studied traits, thus evaluation of the genotypes carried out separately in two environments. Results of analysis of variance indicated that the studied genotypes differed significantly for all of the traits at two environments. Orthogonal contrast indicated that large seed and small seed genotypes were significantly differed for all traits and the eight genotypes were classified in two groups. Two genotypes including the landraces from north of Iran and breeding variety (Barrakat) had the highest yield at Guilan and landraces from Khoramabad produced the highest yield at Lorestan. Results of present study showed that the small seed genotypes from west of Iran and large seed genotypes from north of Iran could be used as parents to obtained transgressive segregation for most of traits.