Integrated Management of Seed Borne Pathogenic Fungi Of Brri 29 Rice Variety

Dhaka University Journal of Biological Sciences Pub Date : 2022-02-10 DOI:10.3329/dujbs.v31i1.57924

P. Chowdhury, S. Shamsi, H. Begum, M. A. Bashar

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引用次数: 1

Abstract

A pot experiment was conducted with the single and combined doses of fungicides, plant extracts and antagonist for the management of nine rice pathogens. A total of 13 treatments including controls with or without inocula of the pathogen were tested. Amongst all the treatments only T6 (Bavistin + Azadirachta indica + Trichoderma harzianum) showed highest percentage of seed germination and seedling vigor index of seeds inoculated with Alternaria alternata , Aspergillus flavus, Curvularia lunata and Pestalotiopsis guepinii. Next to T6, T10 (Bavistin + Tall + Azadirachta indica + Citrus medica) showed promising result against Drechslera oryzae, Fusarium moniliforme, Microdochium oryzae and Sarocladium oryzae. T3 treatment (Azadirachta indica) showed highest percentage of seed germination and seedling vigor index in case of seeds inoculated with Fusarium solani. Amongst all treatments the integrated use of Bavistin, A. indica and T. harzianum showed the better performance for growth reduction of test pathogens and increased germination of seeds. Dhaka Univ. J. Biol. Sci. 31(1): 159-168, 2022 (January)

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水稻Brri 29种传致病真菌的综合治理

采用药剂、植物提取物和拮抗剂单剂量和联合剂量对9种水稻病原菌进行了盆栽试验。共13个处理，包括对照组，接种或不接种病原菌。接种互交霉、黄曲霉、月曲霉和格皮拟盘多毛孢的种子发芽率和幼苗活力指数最高的处理只有T6(巴伐菌素+印扎霉+哈兹木霉)。除T6外，T10 (Bavistin + Tall + Azadirachta indica + Citrus medica)对稻瘟病菌(Drechslera oryzae)、念珠镰刀菌(Fusarium moniliforme)、稻瘟病菌(Microdochium oryzae)和稻瘟病菌(Sarocladium oryzae)的防治效果较好。T3处理(印楝)的种子发芽率和幼苗活力指数在接种枯萎病菌时最高。在所有处理中，巴伐菌素、籼稻和哈兹霉综合使用对抑制试验病原菌生长和提高种子发芽率有较好的效果。达卡大学。科学通报31(1):159-168,2022 (1)

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Dhaka University Journal of Biological Sciences

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