Vol. 8 (4) : July-August 2017 issue
Green Farming Vol. 8 (4) : 790-794 ; July-August, 2017
Genetic analysis and correlation studies for physio and agro-morphological-traits in early sown Indian mustard [Brassica juncea (L.) Czern & Coss]
ANUSHREE1* and ANIL PANDEY2
Department of Plant Breeding and Genetics, Dr. Rajendra Prasad Central Agricultural University, Pusa, Samastipur - 848 125 (Bihar)
1Ph.D Research Scholar *(email@example.com), 2Chief Scientist Cum University Professor
Subject : Crop Genetics and Plant Breeding
Paper No. : P-6633
Total Pages : 5
Received : 27 March 2017
Revised accepted : 05 June 2017
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ANUSHREE and ANIL PANDEY. 2017 Genetic analysis and correlation studies for physio and agro-morphological-traits in early sown Indian mustard [Brassica juncea (L.) Czern & Coss]. Green Farming Vol. 8 (4) : 790-794 ; July-August, 2017
A set of thirty-five genotype of Indian mustard (Brassica juncea (L.) Czern & Coss.) were evaluated to study genetic variability and interrelationship among physio-morphological characters under heat stress. High values of GCV coupled with heritability were observed for LAI (30 DAS), LAI (60 DAS), SLW (60 DAS), CGR, secondary branches/plant and seed yield/plant suggesting that additive gene action might play major role in the expression of these characters and selection would be rewarding in further improvement of these characters. High heritability estimates coupled with high genetic advance was observed for LAI (30 DAS), LAI (60 DAS), SLW (60 DAS), secondary branches/plant whereas high heritability with moderate genetic advance was observed for seed yield/plant. Significant correlations among most of the physio-agro-morphological traits were found during different growth stages. Seed yield/plant was exhibited positive and significant correlation with secondary branches/plant, harvest Index, seeds/siliqua, chlorophyll content (60DAS) and 1000 seed weight. Seed yield/plant showed positive and highly significant correlation with days to physiological maturity (r=0.6276**). which could be considered as one of the important selection criteria in the improvement of seed yield under heat stress situation.
Key words :
Early sown, Genetic variability, Indian mustard, Physio-morphological traits, Yield attributes.