Correlation and Path Analysis in Rabi Onion (Allium cepa L.) Genotypes

Author: N.V. Mane, V.S. Kale and P.J. Karande

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Abstract

The experiment was carried out at instructional farm of vegetable science, Department of vegetable science, Dr. PDKV, Akola during rabi season of (2018-19), with 19 genotypes along with a 3 check of onion. To determine correlation and path coefficient analysis for 10 contributing characters. Genotypic and Phenotypic correlation coefficient analysis revealed that yield per hectare had positive significant correlation with number of leaves, plant height, leaf length, leaf area, neck thickness, bulb diameter, bulb weight, yield per plot and total soluble solid except phenotypic correlation coefficient of neck thickness was positive but non-significant. Path analysis revealed positive direct effect on yield per hectare through number of leaves (0.53284), leaf length (0.24280), leaf area (0.34598), yield per hectare (1.48320). Hence, these characters may be given consideration while formulating selection indices for the improvement of onion

Keywords

Correlation coefficient, Path analysis, Genotype, Rabi onion

Conclusion

The total yield of bulb per hectare recorded significant correlation with number of leaves, height of plant, leaf length, leaf area, neck thickness, bulb diameter, bulb weight, yield per plot, TSS indicating that the superior yielding ability was associated with these yield contributing characters. Based on direct and indirect effects of different yield components on yield it appears that it would be rewarding to lay stress number of leaves, height of plant, leaf length, leaf area, neck thickness, bulb diameter, bulb weight, will be useful in identifying the genotypes as parents for further improvement in onion.

References

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How to cite this article

N.V. Mane, V.S. Kale and P.J. Karande (2024). Correlation and Path Analysis in Rabi Onion (Allium cepa L.) Genotypes. Biological Forum – An International Journal, 16(3): 56-58.