Author(s):

DC Manjunathagowda, M Anjannappa, HB Lingaiah, ES Rao, KS Shankarappa and J Jayappa

Abstract: The performance of different onion genotypes were assessed and revealed the significance of their plant growth and bulb production ability during kharif season of year 2017, since it is on off season production, kharif onions do fetch higher market price, Meanwhile farmers get premium returns from kharif season onion crop. The utmost plant height (70.42 cm) recorded by the genotype COHBON18, the number of leaves noted maximum in the genotype COHBON01 (12.06), the maximum leaf length (60.92 cm) was recorded from the variety Bhima Super. The highest maximum leaf width (1.64 cm) and maximum stem girth (1.53 cm) was recorded from the genotype COHBON15. The lowest premature bolts (1.00%) and lowest split bulbs or double bulbs (1.50%) were recorded from the genotype COHBON34. The maximum equatorial diameter (57.25 mm) of bulbs was recorded from the genotype COHBON11. The maximum polar diameter (56.51 mm), maximum average bulb weight (86.46 g) of bulbs, maximum weight of five bulbs (432.30 g), maximum weight of ten bulbs (0.73 kg), maximum weight of twenty bulbs (5.70 kg) and maximum bulb yield per hectare (31.66 t/ha) was recorded from the variety Bhima Super and which was followed genotypes COHBON34 (28.70 t/ha) and COHBON27 (28.28 t/ha). In view of better yield performance, these genotypes were suitable for cultivation during kharif season. Thus, the genotypes can also be used as source of breeding material for further genetic improvement of onion.

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