International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles                      Volume : 7, Issue:7, July, 2018

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : /
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(7): 902-915

Heterosis and Combining Ability Evaluation for Yield, Quality, and Fruit Fly Resistance in Muskmelon
Saroj Rolania1* and M.S. Fageria2
1Defence Research and Development Organization, Delhi-110054, India
2Genemics and Biotechnology Forest and Conservation Genomics and Biotechnology Lab, Faculty of Forestry and Environmental management, University of New Brunswick, Tweeddale Centre, 1350 Regent Street, Fredericton NB E3C 2C6, Canada
*Corresponding author

The objective of this study was to breed muskmelon hybrids possessing higher TSS, flesh, and rind thickness, early and total yields; lower seed cavity; and resistance to fruit fly. Eight genetically diverse parents viz., Kesar, exotic collections (EC-2, EC-3, EC-4, EC-5), and indigenous collections (GP-210, GP-211, GP-141) were crossed in a diallel fashion excluding reciprocals. The resulting 28 F1's were evaluated with their parents in completely randomized block design with three replications under open field conditions. A high positive and significant commercial heterosis was shown by a couple of crosses. The analysis of variance revealed presence of considerable genetic variability for all the characters studied. Estimates of general combining ability (gca) and specific combining ability (sca) were highly significant. Parent GP-210 and GP-211 were best general combiners for vine length, number of fruits per hill and TSS; GP-211 and GP-141 for days to first fruit harvest; EC-5 and EC-3 for fruit weight; EC-2 and Kesar for small size of seed cavity, higher flesh thickness, rind thickness and resistance to fruit fly. The two best crosses were Kesar x EC-2 and EC-3 x GP-211. Kesar x EC-2 was superior in fruit weight, yield, size of seed cavity, flesh and rind thickness, shelf life and resistance to fruit fly. EC-3 x GP-211 took lesser days to harvest first fruit and recorded higher fruit weight, yield, rind thickness and had least incidence of fruit fly.

Keywords: Muskmelon, Heterosis, gca, sca, Fruit yield, Fruit fly, Resistance

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How to cite this article:

Saroj Rolania and Fageria, M.S. 2018. Heterosis and Combining Ability Evaluation for Yield, Quality, and Fruit Fly Resistance in Muskmelon.Int.J.Curr.Microbiol.App.Sci. 7(7): 902-915. doi:
Copyright: This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike license.