Response of BAR-transformed rice (Oryza sativa) and red rice (Oryza sativa) to glufosinate application timing

被引：17

作者：

Sankula, S ^{[1
]}

Braverman, MP ^{[1
]}

Linscombe, SD ^{[1
]}

机构：

[1] LOUISIANA STATE UNIV,DEPT PLANT PATHOL & CROP PHYSIOL,BATON ROUGE,LA 70803

来源：

WEED TECHNOLOGY | 1997年 / 11卷 / 02期

关键词：

glufosinate; 2-amino-4-(hydroxymethylphosphinyl)butanoic acid; red rice; Oryza sativa L ORYSA; rice; Oryza sativa L 'Gulfmont'; BAR gene; benomyl; growth stage; sequential applications; single applications; transformed rice; weed management;

D O I：

10.1017/S0890037X00042998

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Glufosinate at 2.2 kg ai/ha injured rice transformed with the BAR gene more when applied to one- to two-leaf (23 to 26%) than to three- to four-leaf (13 to 19%) plants. Visible injury was least when applications were made at boot stage (3 to 14%). However, applications at boot stage caused an average grain yield reduction of 16%. Most treatments did not influence rice plant height. Among single applications (0.3, 0.4, 0.6, 0.8, and 1.1 kg/ha), 1.1 kg/ha glufosinate at three- to four-leaf stage of red rice resulted in greater control (91%) than at panicle initiation (74%) or at boot stage (77%). Injury to red rice was two to 11 times greater than the injury to BAR-transformed rice depending on glufosinate rate and application timing.

引用

页码：303 / 307

页数：5

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