QUALITY STUDY OF RADISH (Raphanus sativus.L) SEED cv. TASAKI MULA IN DINAJPUR AND RANGPUR DISTRICT

Abstract

In total 45 seed samples of radish cv. Tasaki mula were randomly collected from 40 farmers of four upazillas (Birgonj, Kaharol, Badargonj and Taragonj) comprising 10 farmers from each of the upazilla and five companies (Molla seed company, Supreme seed company, Lal teer seed company, Metal seed company and Alamgir seed company) were collected from Dinajpur local seed market during the period of April to September 2007 for testing their quality and health status. In field study, the field emergence of farmer’s seed samples ranged from 53.70-61.40% and company’s seed samples were found 50.50-73.00%. The plant stand of farmer’s seed samples was found 37.20-44.40% and in company’s seed samples were found 33.50-58.00%. In laboratory study, the germination percentages were recorded 64.92-77.95% in farmer’s seed samples and 42.50- 85.00% in company’s seed samples. In case of apparently diseased seed 22.20- 64.00% were recorded in farmer’s seed samples and 22.07-39.75% in company’s seed samples. The vigor indexes were recorded 917.32-1220.70 in farmer’s seed samples and 531.68-1395.70 in company’s seed samples. The highest percentage of Alternaria infected seed was observed 25.30% in Taragonj upazilla’s seed sample and the lowest 22.40% in Birgonj upazilla’s seed samples, where the highest 22.50% Alternaria infected seed was recorded in Molla seed company’s seed sample and the lowest 17.25% was recorded in supreme seed company’s seed sample. Finally it may be concluded that, company seed samples were superior in quality than farmer’s seed samples regarding all parameters.