STUDIES ON VARIABILITY, CORRELATION AND PATH COEFFICIENT ANALYSIS IN SORGHUM [Sorghum Bicolor L. Moench]

S. ZINZALA¹, B.K. DAVDA²*, K.G. MODHA³, V.D. PATHAK^4
1Department of Genetics and Plant Breeding, N. M. College of Agriculture, Navsari Agricultural University, Navsari, 396450, Gujarat, India
²Main Sorghum Research Station, Surat, Navsari Agricultural University, Navsari, 396450, Gujarat, India
³Department of Genetics and Plant Breeding, N. M. College of Agriculture, Navsari Agricultural University, Navsari, 396450, Gujarat, India
⁴Main Sorghum Research Station, Surat, Navsari Agricultural University, Navsari, 396450, Gujarat, India
* Corresponding Author : bharatkdavda@gmail.com

Received : 28-09-2018     Accepted : 12-10-2018     Published : 15-10-2018
Volume : 10     Issue : 19       Pages : 7285 - 7287
Int J Agr Sci 10.19 (2018):7285-7287

Keywords : Sorghum, variability, heritability, Correlation, Path analysis
Conflict of Interest : None declared
Acknowledgements/Funding : Authors thankful to Navsari Agricultural University, Navsari, Gujarat 396450
Author Contribution : All author equally contributed

Genetic variability, heritability, genetic advance, correlation and path analysis were studied in 25 sorghum genotypes. Significant genetic variability was observed among the genotypes studied. Highest PCV and GCV values were observed for dry fodder yield per plant, primary branch per panicle and tannin. In the present investigation, high heritability accompanied with high genetic advance as percent mean was observed for days to 50% flowering, primary branches per panicle, 100 seed weight, dry fodder yield per plant, grain yield per plant and tannin, suggesting the influence of additive genes and provides scope for selection. Correlation studies indicated that grain yield per plant was found to be significantly and positively associated with panicle length and protein suggesting that selection for plant with long panicle will result in higher grain yield. Path analysis indicated highest positive direct effects on grain yield per plant for days to maturity, dry fodder yield per plant, tannin, panicle length and 100 seed weight.

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