Department of Soil Science and Agricultural Chemistry, Tamil Nadu Agricultural University, Coimbatore - 641 003

Abstract

A laboratory experiment was conducted at Seed Research and Technology centre, Rajendranagar, Hyderabad to study the effect of seed coating with polymers and chemicals on seed quality during storage in hybrid cotton during 2010-11. The results indicated that seeds coated with polykote @ 3ml kg-1 of seed along with vitavax 200 showed higher germination percentage (74 and 73) with seeds stored in polythene bag and cloth bag respectively over a period of 12 months storage while untreated seeds recorded 53 and 56 per cent. It also showed enhancement of other parameters like field emergence, seedling length and seedling vigour index than other treatments. The next best treatment for seed quality parameters was polykote @ 3ml kg-1 of seed + Imidacloprid @ 6ml kg-1 + Thiram 75% WP @ 2.5g kg-1.