Vinay Kumar, Umamaheswarappa, P., Srinivasa, V., Ganapathi M. and O. Kumar
Abstract
Among the alliums, onions are the most widely grown vegetable and most popular due to its use in daily household activities. Onion is primarily originated in Central Asia. Many scientists reported that the application of growth stimulants would be helpful in increasing crop productivity. The experiment was set up in a randomized complete block design comprising thirteen treatments of different concentrations of growth stimulants with three replications. The results showed that foliar application of Triacontanol at 0.4 per cent recorded maximum number of leaves (11.48) and collar thickness (14.85 mm). The same treatment also recorded maximum equatorial (5.79 cm) and polar (5.48 cm) bulb diameter and also highest bulb yield per plot (12.33 kg) and total bulb yield (32.61 t/ha). Triacontanol has resulted in a higher yield compared to the control group, indicating its substantial potential for use in crop production.