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1991—1994年对山东省11县市的小麦根腐病标样进行病原分离培养及致病性测定,鉴定出6种镰刀菌,有黄色镰刀菌(Fusarium culmorum (Smith)Sacc.)、禾谷镰刀菌(F.graminearum Schw.)、尖孢镰刀菌(F.oxysporum Schl.)、串珠镰刀菌(F.moniliforme Sheld.)、茄病镰刀菌(F.solani (Mart) Sace.)及木贼镰刀菌(F.equiseti (Corda) Sacc.)。前4种为主要致病种。所测5种镰刀菌生长发育的适宜条件为25—30℃,PH5—6,全光照或光照交替培养;可溶性淀粉为最佳碳源,硝态氮和天门冬素为最佳氮源。铵态氮、L—半胱氨酸促进黄色镰刀菌生长,而对其他种有抑制作用。小麦组织液明显促进孢子萌发。
From 1991 to 1994, pathogenicity and isolation of wheat root rot samples from 11 counties and cities in Shandong Province were tested. Six Fusarium species were identified, including Fusarium culmorum (Smith) Sacc. F. graminearum Schw., F. oxysporum Schl., F. moniliforme Sheld., F. solani (Mart. Sace.) And Equisetum F.equiseti (Corda) Sacc.). The first 4 species are the main pathogenic species. The optimal conditions for the growth and development of the five Fusarium species were 25-30 ℃, PH5-6, and all light or light were alternately cultivated. Soluble starch was the best carbon source and nitrate nitrogen and aspartate were the best nitrogen sources. Ammonium nitrogen and L-cysteine can promote the growth of Fusarium oxysporum and inhibit the growth of other species. Wheat tissue fluid significantly promote spore germination.