Correlation and Path Analysis in Garlic Genotypes under North-Eastern Dry Zone of Karnataka

Author: Siddarth S.S., Ashok H., A.R. Kurubar, K.N. Kattimani, Yenjerappa S.T., Nidoni U. and J.M. Nidagundi

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Abstract

In order to determine correlation and path co-efficient analysis during rabi season, a study on correlation and path analysis in garlic genotypes under the North-Eastern dry zone of Karnataka was conducted at the Horticulture Department, College of Agriculture, UAS, Raichur with twenty eight garlic genotypes and three replications. Sprouting percentage, plant height, number of leaves, leaf length, leaf width, neck thickness, fresh weight of plant, dry weight of plant, days to maturity, bulb weight, bulb diameter, bulb length, clove length, clove diameter and hundred clove weight had positive and significant association with total yield per hectare indicating that an intense selection for these traits could improve the bulb yield. Path co-efficient analysis showed highest and positive direct effect on dry weight of plant followed by average bulb weight, clove weight, leaf length, bulb length and neck thickness selection based on these traits will be effective for any breeding programme.

Keywords

Correlation, path analysis, garlic, genotypes

Conclusion

According to a correlation study, there is a strong inherent relationship between various traits because genotypic correlation coefficients were shown to be higher in magnitude than phenotypic correlation coefficients. There was a positive and significant correlation between yield per hectare and sprouting percentage, plant height, number of leaves, leaf length, leaf width, neck thickness, fresh weight of the plant, dry weight of the plant, days to maturity, bulb weight, bulb diameter, bulb length, clove length, clove diameter, and hundred clove weight, indicating that these traits could be intensely selected for to increase the bulb yield. Path co-efficient analysis showed, dry weight of the plant was the trait with the highest and positive direct effect, followed by average bulb weight, clove weight, leaf length, bulb length, and neck thickness. Breeding programmes will be successful if they base their selection on these qualities. The traits with the most direct negative effects on plant fresh weight, dry matter content, days to maturity, clove length, bulb diameter, and plant height suggest that indirect selection for these traits might be advantageous for increasing yield.

References

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How to cite this article

Siddarth S.S., Ashok H., A.R. Kurubar, K.N. Kattimani, Yenjerappa S.T., Nidoni U. and J.M. Nidagundi (2023). Correlation and Path Analysis in Garlic Genotypes under North-Eastern Dry Zone of Karnataka. Biological Forum – An International Journal, 15(2): 593-597.