بررسي فنوتيپي برخي ژنوتيپ هاي انبه در ايران

Morphological Evaluation of Some Mango Genotypes in Iran

Mango is one of the most important tropical fruits, rich in nutrients and nutritious components. In this study, the relationship among 48 quantitative and qualitative traits related to leaf, flower, fruit and seed of 48 Mango genotypes was evaluated. The traits included leaf length, width and shape, petiole length, fruit weight, length, width and shape, seed weight, length, and width, flower features, quantity of seed fiber, fruit vitamin C, fruit juice TSS, fruit acid %, fruit juice pH as well as yield of tree. Analysis of variance showed that the genotypes bear significant differences in most of the investigated traits. Significant positive as well as negative correlations among some important traits were found. Factor analysis was used to assign the number of main factors. It showed that the characteristics of fruit, seed, fruit quality as well as flowering date were the main traits. Effective traits were divided into 16 groups distributed to 83.7% of the total variances. Factor loading values more than 0.6 were considered as significant. Cluster analysis by these factors and using Ward Method based on Euclidean distance divided the genotypes into 2 main clusters including: group 1, Pakistani genotypes and group 2, Indian genotypes. Bi-plot analysis by using the first two factors also separated Pakistani and Indian genotypes.