Ecology, Environment and Conservation Paper

Vol 21, Issue 4, 2015; Page No.(2061-2065)

STORAGE BEHAVIOR OF ONION GENOTYPES UNDER AMBIENT CONDITIONS

Shivakumar, P.M. Gangadharappa, R. C. Jagadeesha, Ravindra Mulge and G.S.K. Swamy

Abstract

A study on storage behavior of onion genotypes under ambient condition between traits like physiological loss in weight, loss due to rotting, sprouting and sprouting length of onion genotypes was carried out for storage parameters. Bulbs filled in nylon net bags were kept on Pucca floor under RCC roof for shelf life study in ambient condition. The mean values of physiological loss in weight (PLW) increased progressively from 9.06 per cent at 30 days after storage (DAS) to 12.89 per cent at 90 DAS. The mean values for rotting losses ranged from 3.58 per cent at 30 days after storage to 16.72 per cent at 90 DAS. The percentage of sprouting increased with the advancement of storage period as indicated by increase in the mean values of sprouting loss from 5.76 per cent at 30 DAS to 13.93 per cent at 90 DAS. At 90 DAS, significantly minimum sprouting length was recorded in genotype 1509 (4.37 cm) which was on par with genotypes 1473 (4.76 cm)

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