Correlation and path analysis in Indian mustard (Brassica juncea L) for morpho-physiological traits in early maturing genotypes
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Authors
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Ajay Pal Yadav
Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj 211007, Uttar Pradesh, India
Author
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Bhagirath Ram
ICAR-Directorate of Rapeseed-Mustard Research Bharatpur 321303, Rajasthan, India
Author
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Hariom Kumar Sharma
ICAR- Directorate of Rapeseed-Mustard Research, Bharatpur, 321 303 (Rajasthan), India
Author
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Bhupendra Singh Yadav
MJRP College of Agriculture, Jaipur 302019, Rajasthan, India
Author
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Mahipal Yadav
College of Agriculture, SKN Agriculture University, Jobner 303328, Jaipur, Rajasthan, India
Author
Keywords:
Genotypes, correlation, Indian mustard, membrane stability index, path analysis, relative water contentAbstract
Thirty advanced progenies along with three check varieties of Indian mustard (Brassica juncea) were evaluated during
Rabi 2019-20. The analysis of variance showed significant difference among genotype for all the characters. High
estimate of heritability coupled genetic advance as percentage of mean was observed for 1000-seed weight, siliqua per
plant and seed yield per plant. Medium heritability with medium genetic advance as percentage of mean was observed
for water retention capacity of leaves, membrane stability index and secondary branches per plant. Correlation coefficient
reflected that seed yield per plant showed positive and significant association with primary branches per plant (0.83),
excised-leaf water loss (0.52), secondary branches per plant (0.52), siliqua per plant (0.44), days to 50 % flowering (0.35),
main shoot length (0.32) and plant height (0.24). Path coefficient at genotypic level studied that secondary branches per
plant (0.28), water retention capacity of leaves (0.21), main shoot length (0.19), excised-leaf water loss (0.15), days to
maturity (0.09), primary branches per plant (0.08), siliqua per plant (0.07) had positive direct effect on seed yield per plant
was observed. Thus, morphological and physiological characters confer the potentiality of particular genotype and
association with yield is suitable for genotype selection.
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