EVALUATION OF KHARIF ONION GENOTYPES UNDER CHHATTISGARH PLAINS CONDITION ( Allium cepa L.)
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Date
2017
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Indira Gandhi Krishi Vishwavidyalaya, Raipur
Abstract
The present investigation entitled “Evaluation of kharif onion genotypes under Chhattisgarh plains condition (Allium cepaL.)” was carried under All India Network Research project on Onion & Garlic at Horticulture Instructional cum Research Farm Department of Vegetable Science, College of Agriculture, IGKV, Raipur (C.G.) during kharifseason 2016-17 with 38 genotypes of onion in Randomized Block Design with three replications.
The data of different characters were recorded and analyzed to work out the mean performance, variability, heritability, genetic advance, correlation and path analysis for plant height, no. of leaves per plant, leaf length, leaf thickness,pseudostem thickness, equatorial diameter of bulb, polar diameter of bulb, neck length, plant establishment percent, bolting percent, total soluble solids percent, bulb fresh weight, average weight of marketable bulb, total bulb yield per ha and storage studies.
Among the genotypes evaluated ON15-18, ON15-32 and ON16-17 were found best for bulb fresh weight, neck length and total yield. Whereas, recorded highest total soluble solids ON15-32. Maximum plant height recorded in ON15-32, no. of leaves per plant found maximum inON15-45, recorded maximum in while, ON16-08 and ON14-23 recorded maximum leaf length and leaf thickness respectively.
The highest estimated of genotypic coefficient of variation (GCV) were observed in case of bolting percent, bulb fresh weight, average weight of marketable bulb, total bulb yield . The highest estimates of heritability in broad sense was obtained for bolting followed by bulb fresh weight, average weight of marketable bulbs, neck length, polar diameter and total bulb yield .
Correlation coefficient analysis revealed bulb fresh weight showed positive and significant correlation with average weight of marketable bulb and total yield.
On the basis of storage evaluation it is evaluated that the genotypes ON15-32, ON14-23 and ON16-17has maximum shelf life and store for longer duration in Chhattisgarh plains condition.
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