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International Journal Of Horticulture, Agriculture And Food Science(IJHAF)

Gene Action for Yield and its Attributes by Generation Mean Analysis in Brinjal. (Solanummelongena L.)

R. Gunasekar , K. Manivannan , M. Kannan

International Journal of Horticulture, Agriculture and Food science(IJHAF), Vol-2,Issue-6, November - December 2018, Pages 208-211, 10.22161/ijhaf.2.6.2

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Genetic studies assist the breeder in understanding the inheritance mechanism and enhance the efficiency of a breeding programme. Knowledge of gene action and their relative contribution in expression of character is of great importance. Eggplant yield depends on two components viz., fruit weight and number of fruits per plant. These traits are quantitative and therefore influenced by multiple genes. The objective of this study was to estimate the main gene effects (additive, dominance and digenic epistasis) and to determine the mode of inheritance for fruit Yield and its components. The generation mean analysis was employed in three crosses viz., Ac-2 x Annamalai, EP-45 x Annamalai and EP-89 X Annamalai to partition the genetic variance. Among the three crosses studied, the cross Ac-2 x Annamalai had complimentary type of epistasis along with significant additive gene effects and additive x additive interaction gene effects for all the three traits. Considering fruit yield per plant and its attributes, this cross was judged as the best cross for further selection programme.

Brinjal, epistasis, five parameters, gene action, generation mean analysis, yield, yield attributes.

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