Follow
International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00 For more details click here
National Academy of Agricultural Sciences (NAAS) : NAAS Score: *5.38 (2019) [Effective from January 1, 2019]For more details click here

Login as a Reviewer

Indexed in



National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

See Guidelines to Authors
Current Issues

Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(3): 278-290
DOI: https://doi.org/10.20546/ijcmas.2019.803.035


Genetic Variability, Diversity and Character Association in Sponge Gourd [Luffacylindrica (Roem.) L.]
J. Suresh Kumar1*, M.K. Pandit2 and T. Lakshmi Pathy3
1ICAR-Central Tuber Crops Research Institute, Thiruvananthapuram, Kerala, -695017
2Department of Vegetable Crops, Faculty of Horticulture, BCKV, West Bengal, India
3Division of Crop Improvement, ICAR – Sugarcane Breeding Institute, Tamil Nadu, India
*Corresponding author
Abstract:

The present study was conducted to determine phenotypic performance, genetic variability, heritability, genetic advance, diversity, correlation and path analysis for yield and seventeen yield attributing characters of forty five sponge gourd germplasm. PCV was higher than GCV for all the traits studied. High PCV and GCV were recorded for number of primary branches, number of fruiting nodes on main stem, sex ratio, fruits per plant and yield per plant. Thirteen characters showed high heritability coupled with high genetic advance. Correlation coefficient study indicated that yield per plant had highly significant positive relationship with number of primary branches, fruiting nodes on main stem, fruit length, fruit weight, fruits per plant, seeds per fruit and 100 seed weight. Path co-efficient analysis showed that fruits per plant (0.7013) and number of seeds per fruit (0.6833) exhibited the highest positive direct effect on yield per plant. Based on Mahalanobis’ D2 statistics, the forty five genotypes were grouped into seven different clusters. Maximum intra cluster distance was in cluster- III (541.13) where maximum inter-cluster distance was between cluster- IV and cluster- V (5177.9). Characters namely yield per plant, fruit weight and number of fruiting nodes on main stem showed maximum contribution towards divergence, hence considering these characters in selection of diverse parents during hybridization program manifests high heterosis.


Keywords: Genetic variability, Diversity, Yield, Correlation coefficient, Path analysis
Download this article as Download

How to cite this article:

Suresh Kumar, J., M.K. Pandit and Lakshmi Pathy, T. 2019. Genetic Variability, Diversity and Character Association in Sponge Gourd [Luffacylindrica (Roem.) L.].Int.J.Curr.Microbiol.App.Sci. 8(3): 278-290. doi: https://doi.org/10.20546/ijcmas.2019.803.035