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International Journal of Applied Agricultural & Horticultural Sciences
  • 29 April, 2024
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Frequency : Bimonthly
Language : English
DOI Prefix : 10.37322
P-ISSN : 0974-0775
E-ISSN : 2582-4198
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Vol. 9 (2) : March-April 2018 issue
Green Farming Vol. 9 (2) : 244-247 ; March-April, 2018
Studies on character association and genetic variability for important traits in ridge gourd (Luffa acutangula L.)
MANOJ Y.B.a1,  LAKSHMANA D.a2*,  GANAPATHI M.b2  and  CHANDANA B.C.c3
aDept. of Crop Improvement & Biotechnology, bDeptt. of Crop Physiology, cDeptt. of Genetics & Plant Breeding, College of Horticulture, Mudigere - 577 132 (University of Agric. & Hortic. Sciences, Shivamogga) (Karnataka)
Designation :  
1P.G. Student,  2Professor & Head *(lakshmanad@rediffmail.com),  3,4Assistant Professor
Subject : Crop Genetics and Plant Breeding
Paper No. : P-7198
Total Pages : 4
Received : 03 March 2018
Revised accepted : 30 March 2018
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Citation :

MANOJ Y.B., LAKSHMANA D., GANAPATHI M. and CHANDANA B.C. 2018. Studies on character association and genetic variability for important traits in ridge gourd (Luffa acutangula L.). Green Farming  Vol. 9 (2) : 244-247  ;  March-April, 2018

ABSTRACT
Thirty five ridge gourd germplasm were evaluated to study the correlation, path analysis and variability for important yield and yield contributing characters namely days to 50 percent flowering, vine length, number of branches (vines) per plant, sex ratio, fruit length, fruit diameter, percent fruit set, rind thickness, flesh thickness, number of ridges per fruit, fruit weight, fruit yield per plant. Fruit yield per plant significantly and positively correlated with fruit length, fruit diameter, percent fruit set, flesh thickness, number of ridges per fruit and fruit weight at both phenotypic and genotypic level. The path coefficient analysis revealed that number of branches per plant, fruit length, fruit diameter, percent fruit set, flesh thickness, number of ridges per fruit, fruit weight are principal characters to be accounted for gaining improvement in fruit yield per plant since these characters had high positive direct effects on fruit yield per plant. The Genotypic coefficient of variation (GCV) was low compared to the Phenotypic coefficient of variation (PCV) for all the characters studied. The highest GCV and PCV observed for sex ratio and fruit yield per plant. High heritability coupled with high genetic advance as percent mean observed for sex ratio, days to first harvest, fruit length, percent fruit set, fruit weight, fruit yield per plant, rind thickness and flesh thickness indicating greater scope of improvement through selection.
Key words :
Correlation, Flesh thickness, GCV, Heritability, Path analysis, PCV, Ridge gourd, Yield attributes.