ISSN: 0041-3216 (Online), 0041-3216 (Print)
Volume 91 Number 2
A study on the genetic variation in some of faba bean genotypes using multivariate statistical techniques. (87)
Faba bean (Vicia faba L.) is a crop used as food and feed. An investigation was carried out to select the most successful faba bean genotype(s) and to assess the genetic diversity present in the morphological and agronomic traits. Multivariate analysis of variance indicated significance of genotypic effect. A principal component analysis indicated two first axes explained the maximum simple variation. The dendrogram according to the cluster analysis separated G1 and G10 from the other genotypes. This first cluster includes autochthonous landrace from Guilan province and breeding variety (Barrakat), belonging to the major faba bean type; these populations in the first cluster had high to moderate means for all of the traits. The factor analysis indicated that five factors were associated with 85.62% of the total variability. The high yielding genotypes, such as G1 and G10 could be used to improve faba beans and facilitate the potential increase of production of the crop. Moreover, the traits that exhibited strong and positive association with yield include days to pod initiation, days to harvesting, plant height, pod length, hundred seed weight, ratio of seed length to width, stem number per plant and seed number per stem could be used as selection criteria for improving faba bean.
Keywords: Biplot, Cluster analysis, Factor analysis, Principal component analysis, Vicia faba