GENETIC VARIABILITY AND CORRELATION STUDIES IN RABI ONION (Allium cepa)
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Date
2020-11-09
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Dr. Punjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra.
Abstract
The present investigation entitled "Genetic variability and correlation studies in rabi onion" was carried out during rabi season in the year 2018-2019 on the experimental field of Department of Horticulture, Dr. PDKV, Akola. The study was undertaken on twenty-three genotypes of onion using randomized block design with three replications.
The observations were recorded on number of leaves, plant height, leaf length, leaf area, neck thickness, bulb diameter, bulb weight, yield per plot, TSS and yield per hectare. The result showed highly significant differences among genotypes for all characters studied.
The highest genotypic coefficient of variation as well as phenotypic coefficient of variation was observed for yield per plot. Almost all characters exhibited high heritability (31.364% to 94.071%), genetic advance over mean ranged from 2.966 to 59.442 for all the characters. Correlation studies of yield contributing traits exhibited positive and significant correlation with yield per hectare. Path analysis revealed positive direct effect on yield per hectare through number of leaves, leaf length, leaf area, yield per plot. Hence, these characters may be given consideration while formulating selection indices for the improvement of onion.
Description
The present experiment was carried out during rabi season of academic year 2018-19, at Instructional Farm, Department of Vegetable Science, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola (M.S.). The experiment was conducted in Randomized Block Design with three replications and twenty-three treatment.
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Citation
MANE, NAGNATH VILAS. (2020). Genetic variability and correlation studies in rabi onion (Allium cepa). Department of Vegetable Science, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola. M. Sc. 2020. Print. xii, 68p. (Unpublished).