STUDIES ON EFFICACY OF BIOLOGICAL SEED COATING WITH BIOPOLYMER ON SEED QUALITY AND LONGEVITY IN BELL PEPPER (Capsicum annuum L.) AND TOMATO (Solanum lycopersicum L.)
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Date
2022-01-11
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Abstract
The experiment was conducted to study the efficacy of biological seed coating with biopolymer on seed quality and longevity in bell pepper and tomato, during 2020-2021. Among eight different biologically coated treatments, seeds coated with (T.viride + P.fluorescens + B.subtilis + Mycorrhiza + Multinutrient-mix) 20g + Biopolymer 25g +
Water 50 g/kg seed (T6), (T.viride + P.fluorescens + B.subtilis + Mycorrhiza + Multinutrient-mix) 10g + Chitosan 5g + Biopolymer 25g + Water 55g/kg seed (T8) and
T.viride + P. fluorescens + B.subtilis + Mycorrhiza + Multinutrient-mix) 10g + Thiamethoxam 3.5g) + Biopolymer 25g + Water 55g/kg seed (T7), showed highest
germination in bell pepper (94.67, 94.00 and 93.67%), SVI-I (936, 905 and 889), seedling emergence in protray (96.00, 95.67 and 95.00%) and seedling length @30 DAS (23.04, 22.98 and 22.45cm) over control. Above three treatments showed highest germination (95.00, 94.00 and 93.67%), SVI-I (1734, 1668 and 1656), seedling emergence in protray (97.00, 95.67 and 94.33%) and seedling length @30 DAS (33.88, 33.51 and 33.10cm) in tomato. Best three seed treatments were stored for evaluation of seed longevity. After two-months storage, reduction of 9.16 % and 8.83% germination was recorded in T6 in bell pepper and tomato respectively. Biologically coated seeds should be sown immediately after seed treatment, as it can be stored for short period because long term storage leads to seed deterioration and decrease in shelf-life of biologicals.However, treatment T6 maintained seed quality of bell pepper and tomato even after six months of storage (92.33% and 92.17%, respectively).
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