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Genetic variability, correlation and path analysis in ridge gourd [Luffa acutangula (Roxb.) L.]

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Title Genetic variability, correlation and path analysis in ridge gourd [Luffa acutangula (Roxb.) L.]
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Creator B. Varalakshmi, M. Pitchaimuthu, E. Sreenivas Rao, K.S. Sanna Manjunath and S.H. Swathi
 
Subject Ridge gourd, Luffa acutangula (Roxb) L., genetic variability, heritability, correlation path analysis
 
Description Not Available
ABSTRACT
The present investigation was made to determine variability, heritability, genetic advance and correlation of fruit
yield with 10 yield-contributing traits in ridge gourd. A wide variability was observed for days taken to first female flower appearance, fruit length, fruit number/plant, fruit weight and fruit yield/ha. Phenotypic coefficient of variation
was higher than genotypic coefficient of variation for all the traits studied, indicating environmental influence on the
expression of these traits. However, high heritability (broad-sense), along with high genetic advance, was recorded in
node number at which first female-flower appeared, number of branches, fruit length, number of fruits/plant and fruit
weight, indicating presence of additive gene effects. Fruit yield/ha was significantly and positively associated with
peduncle length, fruit length, number of fruits/plant (at the phenotypic level), fruit weight and fruit yield/plant. Fruit
weight had the highest direct effect (0.847) on fruit yield/ha, followed by fruit yield/plant (0.793), fruit number
(0.344), peduncle length (0.237) and number of branches (0.216). Therefore, for yield improvement in ridge gourd,
emphasis may be laid on indirect selection using fruit parameters like fruit weight, number of fruits/plant and fruit
yield/plant.
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Date 2021-08-16T09:55:14Z
2021-08-16T09:55:14Z
2015
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/57312
 
Language English
 
Relation Not Available;
 
Publisher Not Available