Study The Line xTester Hybridization, [I] Flowering And Yield in squash (Cucurbita pepo L.)

International Journal of Agriculture & Environmental Science

© 2020 by SSRG - IJAES Journal

Volume 7 Issue 6

Year of Publication : 2020

Authors : Dr. Kamal Benyamin Esho , Dr. Esraa Abd. Al- huseein Jasim

10.14445/23942568/IJAES-V7I6P102

How to Cite?

Dr. Kamal Benyamin Esho , Dr. Esraa Abd. Al- huseein Jasim, "Study The Line xTester Hybridization, [I] Flowering And Yield in squash (Cucurbita pepo L.)," SSRG International Journal of Agriculture & Environmental Science, vol. 7,  no. 6, pp. 18-25, 2020. Crossref, https://doi.org/10.14445/23942568/IJAES-V7I6P102

Abstract:

A field experiment was carried at the vegetable research field of horticulture. Landscape design, college of agriculture and forestry, Mosul university, an inbred line from local marketable for seed, and using tow line as a tester, inbreds were tested for GCA, SCA, H2 in (b.s, ns.) by using line x tester method. Inbreds were planting in spring 2018 using hybridization. An anthesis crossing between inbreds and tester was done. At the end of the growing season, the seeds were a collection. For all hybridization, at the growing season, the spring 2019 varietal trial for crosses and parents was conducted using RCBD design with three replications to evaluate crosses and parents and estimate some genetic parameters vias. : Number of the first node for first female flower, number of days for first male and female flower, number of male and female flowers fro plant, number of fruits for marketable yield for the twist harvesting, number of fruits per plant for marketable, length and diameter (cm) of marketable fruits and fruit weight (gm). The result indicated statistical analysis revealed highly significant mean square increases for all traits for parents and the crosses. While line 6 and tester 2 were superior in high value for GCA and SCA for L2 XT2, L4XT1, and L5XT2 for the number of female flowers per plant. The H2(b.s.), H2(n.s.) were more than 50% for most important traits. The inbred dominant gene action was lower than the additive, but it was closed to additive variation for the tester.

Keywords:

Squash, Line x tester, Yield, Heritability, GS combine ability, Genetic parameters.

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