Line x Tester analysis for yield and its component traits in pumpkin (Cucurbita moschata Duch.Ex Poir)

  • Aruchami Tamilselvi Tamil Nadu Agricultural University
Keywords: Keywords, pumpkin, Line x tester, combining ability, yield.

Abstract

Line x tester analysis was carried out involving twelve lines and three testers for assessing the combining ability for yield and its component characters in pumpkin          (Cucurbita moschata Duch.ex Poir).The combining ability analysis revealed that highly significant differences among the treatments for all the parameters were exhibited by the genotypes. The variance due to sca was higher than the gca for all the characters indicating the predominance of non-additive gene effects. Out of 15 parents of study, the lines Vadhalagundu local followed by Kasi Harit were the best combiners for days to first female flower appearance, node number for first female flower appearance, sex ratio,   days to first harvest, fruit number per vine and quality characters viz., carbohydrate content, total carotenoids content and fruit yield per vine as they expressed preferable and significant gca effect.  Among the  testers CO2  had significantly preferable  gca effect for days to first female flower appearance , node number for first female flower appearance, sex ratio, fruit number per vine, total carotenoids content and yield per vine  and the tester Arka suryamukhi also  expressed  significant preferable  gca value  for days to first harvest, carbohydrate content  and total carotenoids content. The cross Kasi Harit x Avinashi local were identified as specific combiners for days to first female flower appearance, node number for first female flower appearance, sex ratio, fruit number per vine, flesh thickness, total carotenoids content, and fruit yield per vine followed by Vadhalagundu local x CO2 for node number for first female flower appearance, sex ratio, carbohydrate content, total carotenoids content fruit number per vine and fruit yield per vine.

Author Biography

Aruchami Tamilselvi, Tamil Nadu Agricultural University

Senior Research Fellow

Department of vegetable crops

Horticultural College and Research Institute

Tamil Nadu Agricultural University

Coimbatore-641003.

e-mail: tamilaaru@gmail.com

Mobie: 09659467335

Published
19-02-2016
Section
Research Article