Seed quality influenced by dates of Bulb Planting and application of foliar nutrition on onion cv. Arka Kalyan

摘要

In present year, demand of onion in domestic and international market is increasing day by day but non-availability of good quality seed is limitation for profitable seed production programme of onion. Hence an experiment was conducted to study the effect of dates of bulb planting and application of foliar nutrition on plant growth and seed yield of onion during the Rabi season 2015-16 and 2016-17. The experiment consisted of five dates of bulb planting with four application of foliar nutrition. The experiment was laid out in Randomized Complete Block Design (RCBD) with two factorial concepts. The experimental results revealed the significant effect of dates of bulb planting and application of foliar nutrition on seed quality. Significantly highest values were recorded in the seed quality parameters like thousand seed weight (5.50 g), seed germination (98.33 %), coefficient velocity of germination (0.75), speed of germination (46.19), seedling vigour index-I (1,975), seedling vigour index-II (2,559), field emergence (93.58 %) and lowest electrical conductivity (0.640 dS/m) were recorded by planting the bulbs on November-1 st coupled with application of multi micronutrient mixture at 0.25 per cent (D 3 T 3 ) and significantly the lowest was recorded by December-1 st planting with without spray (D 5 T 4 ).