Effects of field application of tebuconazole on yield, yield components and the mycotoxin content of Fusarium-infected wheat grain

被引：58

作者：

Homdork, S ^{[1
]}

Fehrmann, H ^{[1
]}

Beck, R ^{[1
]}

机构：

[1] Univ Gottingen, Inst Plant Pathol & Plant Protect, D-37077 Gottingen, Germany

来源：

JOURNAL OF PHYTOPATHOLOGY-PHYTOPATHOLOGISCHE ZEITSCHRIFT | 2000年 / 148卷 / 01期

关键词：

field application; tebuconazole; yield; deoxynivalenol; nivalenol; zearalenone; Fusarium; wheat grain;

D O I：

10.1046/j.1439-0434.2000.00460.x

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Winter wheat cultivar Basalt was artificially inoculated with Fusarium culmorum at the end of anthesis and treated with the systemic fungicide tebuconazole (Folicur(R)) a few days before and/or after inoculation. Check plots remained uninoculated and unsprayed. Head infections, yield, yield components and the percentage of Fusarium-infected kernels were determined. Artificial Fusarium inoculation lowered yield significantly by 24.2-45.0%. Any fungicide treatment saved yield, thousand grain weight and kernel numbers per head. Pre-infectional application of tebuconazole was superior to application carried out post-infection. Moreover, the fungicide controlled deoxynivalenol (DON) synthesis in the field to a considerable extent, and enabled good control of Fusarium head blight, glume blotch and the percentage of Fusarium-infected kernels. The levels of Fusarium kernel infection after harvest clearly reflected the DON content of wheat grain.

引用

页码：1 / 6

页数：6