摘要
陕西关中地区油松幼苗立枯病的病原为丝核菌（Ｒｈｉｚｏｃｔｏｎｉａｓｏｌａｎｉ）、镰刀菌（Ｆｕｓａｒｉｕｍｓｐ．）和交链孢菌（Ａｌｔｅｒｎａｒｉａｔｅｎｎｉｓ）；４月中旬以前丝核菌占优势，此后镰刀菌占优势，交链孢菌不是主要致病菌。营养杯育苗较苗床条播育苗发病率低；优势菌出现的早晚与土壤温度有关，且大田土发病率＞腐殖质土＞河沙土；室内药剂筛选结果表明，多菌灵和３％硫酸亚铁的抑菌效果较好。
Pathogeny of conifer seedling dampingoff is Rhizoctonia solani.,Fusariun sp. and Alternaria tennis in Shaanxi.The Rhizoction solani. is possessed of ascendant before the middle ten days of April,hereafter the Fusarium sp. is possessed of ascendant,the Alternaria tennis isn't mostly. The mutrition cup seeding is lower incidence of a disease than the drill seeding;Incidence of field soil>humus soil>sand soil.Indoor pesticides screening result indicates that badistan and 3% ferrous sulphate have good bacteriostatic effectiveness.
出处
《陕西林业科技》
北大核心
1999年第2期52-55,共4页
Shaanxi Forest Science and Technology
关键词
立枯病
病原菌
消长规律
药剂筛选
油松
dampingoff
pathogeny
epidemic
pesticides screening
Pinus tabulaeformis
