Seed quality improved by different Seed processing methods on seed quality of onion cv. Arka Kalyan

摘要

Quality seeds can be achieved through better post harvest operations apart from maintaining seed quality by adopting effective principles of seed production. In this regard seed processing is an important segment of seed industry and plays a vital role in improving overall seed quality either for further storage, production or marketing of seeds. Hence an experiment was conducted to study the effect of different seed processing methods on seed quality during 2015-16 and 2016-17. The experiment consisted of eight different treatment combinations of air screen cleaner, specific gravity separator and indent cylinder. The experiment was laid out in Complete Block Design (CBD). The experimental results revealed the significant effect of different seed processing methods. Significantly highest values were recorded for the parameters like seed germination (97.90 %), speed of germination (44.26), seedling growth rate (2.67), seedling dry weight (24.47 mg), shoot length (12.32 cm), root length (9.66 cm), seedling vigour index-I (2,152), seedling vigour index- II (1,904), field emergence (93.79 %) and less electrical conductivity (0.578 dS/m) was recorded in combination of all three equipments i.e air screen cleaner, specific gravity separator and indent cylinder (P 7 ) followed by combination of P 1 +P 2 (air screen cleaner + specific gravity separator) (P 4 ) compared to in ungraded bulk (P 8 ).