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Raghuwanshi, O. S.
- Correlation and Path Analysis Study in Diverse Onion (Allium cepa L.) Genotypes
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Authors
O. S. Raghuwanshi
1,
P. K. Jain
1,
S. K. Sengupta
1,
A. S. Dangi
1,
N. R. Verma
1,
Sunil Prajapati
1
Affiliations
1 All India Network Research Project on Onion and Garlic (AINRPOG), Department of Horticulture, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur (M.P.), IN
1 All India Network Research Project on Onion and Garlic (AINRPOG), Department of Horticulture, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur (M.P.), IN
Source
The Asian Journal of Horticulture, Vol 11, No 1 (2016), Pagination: 19-24Abstract
The association study resulted that the advantages of upgrading onion genotypes through simultaneous selection for equatorial diameter, followed by polar diameter, number of leaves plant-1 at 90 DAT, neck thickness, plant height at 90 DAT and TSS. Path coefficient analysis revealed that polar diameter had highest positive direct effect followed by plant height at 60 DAT, TSS, plant height at 90 DAT, number of leaves plant-1 at 90 DAT and polar: equatorial diameter were the most important traits contributing towards bulb yield plant-1. Direct selection of equatorial diameter, neck thickness, days to maturity, number of leaves plant-1 at 30 and 60 DAT and plant height at 30 DAT should be avoided instead of indirect selection. The highest production was observed in genotype OSR-1344 and Agrifound Light Red. Low incidence percentage of Stemphylium blight was found in genotype ON14-06 incidence percentage of thrips was found in genotype ON14-15. Considerable variability was observed among the genotypes for foliage character, bulb shape, bulb colour and bolting tendency. Foliage colour in green onion and shape and colour of onion bulb are most important characteristics to help customers in choosing cultivars in the market.Keywords
Onion, Character Association, Path Analysis, Yield.
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