Effect of MON 12037 on the growth and tuber viability of purple nutsedge (Cyperus rotundus)

被引:0
作者
Molin, WT [1 ]
Maricic, AA [1 ]
Khan, RA [1 ]
Mancino, CF [1 ]
机构
[1] Univ Arizona, Dept Plant Sci, Tucson, AZ 85721 USA
关键词
MON; 12037; methyl 5-[((4,6-dimethoxy-2-pyrimidinyl) amino)carbonylaminosulfonyl]-3-chloro-1-methyl-1H-pyrazole-4-carboxylate; purple nutsedge; Cyperus rotundus L-#(3) CYPRO; bermudagrass; Cynodon dactylon (L.) Pers. # CYNDA; tuber viability; nutsedge regrowth;
D O I
暂无
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
A field study was conducted in 1994 and 1995 to determine the efficacy of MON 12037 on purple nutsedge in a bermudagrass turf. The percentage of bermudagrass infested with purple nutsedge following a single application of MON 12037 decreased from 60 to 30% at 18 g ai/ha and to approximately 20% at 36, 54, and 72 g/ha. Regrowth of purple nutsedge occurred between 28 and 55 d after treatment (DAT) and was greatest at 18 g/ha. A second application of MON 12037 reduced purple nutsedge percent infestation similarly to one application. Tuber weight and number were not affected by either one or two applications of MON 12037; however, tuber viability decreased after two applications. These results suggest that when using MON 12037, a program of several years duration may be required to successfully manage purple nutsedge in a bermudagrass turf because viable tubers persist following two applications of MON 12037 in a season.
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页码:1 / 5
页数:5
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