MOHAMMADI, Rasoul tarbiat modares university, تهران, ايران , DEHGHANI, Hamid tarbiat modares university, تهران, ايران , KARIMZADEH, Ghasem tarbiat modares university, تهران, ايران

Genetic Analysis of Yield Components, Early Maturity and Total Soluble Solids in Cantaloupe (Cucumis Melo L. subsp. melo var cantalupensis Naudin)

38663

Analysis of genetic main effects and genotype×environment interaction effects for quantitative traits of cantaloupe were conducted based on a genetic model containing additive-dominance and their interactions with environments. A set of 21 diallel F1 hybrids and their parents were evaluated during two the springs of 2011 and 2012. The average weights per fruit, (WT), maturity (DM), flesh thickness (F), total soluble solids content (TSS) and total fruit yield (TY) were measured. The additive genetic variance component was significant for WT, F, DM and TSS, the dominance genetic variance for WT, TY, DM and TSS. However, dominance×year interaction was significant for all traits under investigation except for TSS. Additive gene effects were most important with respect to WT, F, DM and TSS, while genetic dominance effects mainly controlled TY. The parent, Dastjerdi had the highest additive effect for WT and DM, while the parents, Tiltorogh and Savei had the highest additive effects for F and TSS, respectively. Tiltorogh×Savei and Rishbaba×Tiltorogh was the best specific combiner for the traits, WT, F and TY. Favorable heterosis over the better parent heterobeltiosis was found for TY. Thus, there is the potential to generate superior cultivars in segregate generation and hybrid production.

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Cantaloupe , Diallel , Genetic effects , Selection , Heterosis

Yuzuncu Yil University Journal Of Agricultural Sciences

86