棉花枯萎病菌侵染棉籽途径的研究 Ⅰ.从维管束系统侵染棉籽的途径  

STUDIES ON PATHWAYS OF INFECTING COTTON SEED BY Fusaril oxysporum Schl. f. sp vasinfectum (atk) snyder et hansen Ⅰ. INFECTING COTTON SEED THROUGH VASCULAR SYSTEM

作　　者：周华众[1,2] 李祥[1,2] 刘慧 

机构地区：[1]华中农业大学植保系 [2]华中农业大学土化系

出　　处：《华中农业大学学报》1997年第3期263-267,共5页Journal of Huazhong Agricultural University

摘　　要：系统分离研究证明，土壤中的棉花枯萎病菌侵入棉籽的途径是：从棉株根部侵入棉株体内，然后经由茎秆→果枝→铃柄→铃托→胎座的途径从维管束系统侵入，导致棉籽带菌。带菌棉籽主要集中在棉株中。The result showed that Fusarium oxysporum F. sp vasinfectum can infect cotton seed through vascular system of stem, to bollbearing branch, to boll stalk, to boll stalk and then to placenta. Meanwhile, infected cotton seeds are mainly located in the bolls of bottom, middle branch and 1 to 2 joint near the main stem.

关 键 词：棉花 枯萎病 种子带菌 侵入途径 

分 类 号：S435.621.2[农业科学—农业昆虫与害虫防治]