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Estimating combining ability for yield and yield contributing traits in cucumber

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Title Estimating combining ability for yield and yield contributing traits in cucumber
Not Available
 
Creator Kalidas Pati
A. D. Munshi
T. K. Behera
Ravinder Kumar
P. Karmakar
 
Subject General combining ability, specific combining ability, cucumber.
 
Description Not Available
A study was conducted on a 8 × 8 diallel set of cucumber excluding reciprocals to find out the extent of
combining ability for yield and yield attributing characters. The magnitudes of variance due to general as well
as specific combining ability were highly significant indicating the importance of both additive and non-additive
gene action. Among parents, gynoecious line GBS-1(P1) showed maximum g.c.a effects in desirable direction
for node number of first female flower, days to first female flower anthesis, days to fruit set from opening of
first female flower, days to first fruit harvest, number of fruits per plant, and vine length. The parent P5 (Pusa
Uday) exhibited highest positive g.c.a effect for fruit length, fruit diameter, average fruit weight and yield per
plant. In order of merit the gynoecious hybrids P1 × P5 (GBS-1 × Pusa Uday) and P1 × P6 (GBS-1 × Punjab Naveen)
followed by monoecious hybrid P3 × P5 (GS-4 × Pusa Uday), which exhibited highest s.c.a effects for number of characters including total fruit yield per plant. In case of yield and other yield contributing characters like node number of first female flower, days to first female flower anthesis, days to fruit set from opening of first female flower, days to first fruit harvest, number of fruits per plant and yield per plant where specific combining ability component of variance (s2s) is more than general combining ability component of variance (s2g), which indicated preponderance of non-additive gene action. Hence, an improvement programme based on heterosis breeding would be appropriate for improving different traits under study.
Not Available
 
Date 2022-02-02T13:29:58Z
2022-02-02T13:29:58Z
2015-03-01
 
Type Research Paper
 
Identifier Not Available
0972-8538
http://krishi.icar.gov.in/jspui/handle/123456789/69397
 
Language English
 
Relation Not Available;
 
Publisher Indian Academy of Horticultural Science