Inheritance of total proteins and sugars in green seeds of pea [electronic resource].

Includes reference.

Some parental genotypes which. belong to green pea (Pisum sativum var humile), i.e. Snow Early Perfection and Little Marvel, and some others which belong to sugar pea (P. sativum var. macrocarpon), i.e. Sugar Snap, Sugar Dady and Sugar Ann, were used in making a 6x6 diallel cross. Significant differences among each of parental genotypes and related F1 hybirds concerning total proteins and sugar contents of green seeds were found. The highest value of green seed proteins content was associated with cultivar Sugar Dady, i.e. 7.43% [w, followed by Early perfection 6.63% f.w.. The highest value of green seed sugars content was asspciated with cultivar Sugar Ann, i.e. 7.82% f.w.. Significant reciprocal effects on the expression of green seed proteins and sugars control characters were recorded. The additive gene action was found to be predominant in the inheritance of the studied characters. The results indicated the presence of over-dominance for total sugars content in green seeds. The over-dominance acted in the direction of the parents with high Total sugar in green seeds. Unequal distribution of alleles which decrease the expression of the total sugars content of green seeds character and those which increase it over the related loci in the parents was recorded. The six parents used in this study were found to carry more dominant than recessive alleles controlling total sugars content of green seeds.

Summary in Arabic.

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