Formerly International Journal of Basic and Applied Agricultural Research

To assessment about the combining ability and heterosis studies in pea [Pisum sativum L. var. hortense]

Pantnagar Journal of Research, Volume - 21, Issue - 3 ( September-December 2023)

Published: 2023-12-31

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Pea is one of the most important pulse crops. It is a self-pollinated crop with chromosome number 2n = 2x=14. The primary centre of origin is Mediterranean region. It is used as fresh and processed frozen vegetables in India and abroad. To improve the yield levels in this crop, studies on combining ability and heterosis are a method to select suitable parents based on their general and specific combing ability and heterotic effects for use in further breeding programmes. During the present investigation crosses were made in line x tester mating fashion during 2018-2019 and the data was investigated in 2019-20 at Vegetable Research Farm of Chandra Shekhar Azad University of Agriculture and Technology, Kanpur, for obtaining 30 crosses. 30 hybrids and their parents (10 lines and 3 testers), were grown. The general combining ability was significant for all characters in line x tester analysis; the genotypes KS-701 and KS-283 showed highest GCA effect among all genotypes along with highest mean performance respectively indicated these genotypes were good general combiners for green pod yield. Such lines can be utilized as suitable parents for hybridization programme. The cross combinations KS-802 x PSM-3 and C-18-1 x AP-3 showed high SCA effect for green pod yield per plant so it can be utilized for heterosis breeding.

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