Amerullah, Kushal, Umesh BC and Jeevitha D

The aim of the investigation was to assess extent of genetic variability among sixteen genotypes along with check Bheema Safed of onion for fifteen characters comprised of bulb yield and its contributing characters. These genotypes were planted in Complete Randomized Block Design with two replications during rabi-2021, at the new orchard of Main Agriculture Research Station, UAS, Dharwad. On the basis of mean performance, the genotype Puna White was the highest yielder followed by Bheema Shubra and W-364. The analysis of variance revealed the existence of significant amount of variation for the traits studied. High PCV and GCV were noticed for centres per bulb, total yield and fresh weight of bulb. Whereas, moderate GCV and high PCV was observed for weight of single bulb and average weight of marketable bulbs. Therefore, these characters can aid in selection programme. High heritability coupled with high genetic advance over mean was recorded for number of centres per bulb, total bulb yield, fresh weight of the bulbs, average weight of marketable bulb and weight of single bulb, indicates the predominance of an additive gene effects and these provides ample scope for further improvement of these characters through selection.

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