An analysis of the persistence and potency of film‐coated seed protectant as influenced by various storage parameters |
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| Authors: | Sherry Rachel Jacob MB Arunkumar Madhuban Gopal Chitra Srivastava SN Sinha |
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| Institution: | 1. Division of Seed Science and Technology, Indian Agricultural Research Institute, New Delhi, India;2. Division of Agricultural Chemicals, Indian Agricultural Research Institute, New Delhi, India;3. Division of Agricultural Entomology, Indian Agricultural Research Institute, New Delhi, India;4. Indian Agricultural Research Institute Regional Station, Karnal, India |
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| Abstract: | BACKGROUND: An efficient delivery system for seed‐protectant chemicals is needed in light of several disadvantages of conventional seed treatment methods. This study evaluates the efficacy of film‐coat application in maintaining the persistence and potency of imidacloprid on Lycopersicon esculentum (L.) Mill. seeds after simultaneous storage under ambient and regulated environment in paper and aluminium packages. RESULTS: High‐performance liquid chromatography (HPLC) revealed 0.135 mg kg?1 of herbage material to be the threshold value beyond which absolute control was obtained, and with film coating the latter was achieved even with half‐dosage seed treatment, irrespective of the storage condition. The technique provided early protection to the crop and also nullified the deleterious effects of ambient storage on the persistence and potency of the pesticide. CONCLUSION: Film coating enabled superior pesticide dosage as well as higher biological efficacy to be achieved. Hence, in addition to being an ecofriendly alternative, the technique would be a more economically viable option for storage of treated seeds. Copyright © 2009 Society of Chemical Industry |
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| Keywords: | seed dressings film coating persistence potency storage |
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