摘要
】从1620个水稻病株标样中,分离出486个病菌,经纯化鉴定出病原真菌10种,以稻苗立枯丝核菌(Rhizoctoniaoryzae)和稻苗绵腐病菌类(Achlyao-ryzae)为主。从稻种内外共分离鉴定出病菌9种,以稻粒黑粉病菌(Neovosiahor-rida)为主,次为稻恶苗病菌(Gibberelafujikuroi)。从24种药剂中,筛选出防效超过对照药敌克松的药剂依次是:卫稻200FF,利克菌,拌种双,担菌灵,五氯硝基苯等。
Four hundred and eighty six isolates were obtained from 1620 diseased sample plants. Through purification, 19 pathogenic fungi were identified, with Rhizoctonia oryzae and Achlya oryzae being primary species. Nine pathogenic fungi were isolated and identified from the exterior and interior of rice seeds, with Neovossia horrida as the predominant species, followed by Gibberella fujikuroi. Of the 24 fungicides evaluated, five proved more effective in fungous disease control than Fenaminosulf, i.e. Vitavax 200 FF, Rizolex, thiram quintozene, mepronil and pentachloronitrobenzene.
出处
《西南农业大学学报(自然科学版)》
CSCD
1996年第6期579-582,共4页
Journal of Southwest Agricultural University
关键词
旱育秧
真菌
分离
鉴定
药剂防治
水稻
旱地育苗
upland nursery
fungi
separation
certification
chemical control
paddy/