Dry bean response to preemergence-applied KIH-485

被引:7
作者
Sikkema, Peter H. [1 ]
Shropshire, Christy [1 ]
Soltani, Nader [1 ]
机构
[1] Univ Guelph, Dept Plant Agr, Ridgetown, ON N0P 2C0, Canada
关键词
sensitivity; visual injury; tolerance; shoot dry weight;
D O I
10.1614/WT-06-050.1
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 [作物学];
摘要
Three field trials were conducted over a 2-yr period (2004 and 2005) at Exeter and Ridgetown, Ontario to evaluate the tolerance of eight market classes of dry beans to KIH-485 applied PRE at 210 and 420 g ai/ha. KIH-485 PRE caused as much as 67% visual injury in small-seeded and 44% visual injury in large-seeded dry beans. KIH-485 applied PRE at 420 g/ha reduced plant height up to 47% at Ridgetown and 8% at Exeter in 2004, and reduced height of brown and white bean by 15 and 19%, respectively, but had no effect on the height of the other beans in 2005. Shoot dry weight was not affected at Exeter in 2004 but was reduced by 46% at Ridgetown in 2004 and 14% at Exeter in 2005. In 2004, seed moisture content increased by 5, 6, and 12% in black, otebo, and pinto beans, respectively. Seed yield was reduced up to 27% at Ridgetown and 11% at Exeter in 2004 but was not affected at Exeter in 2005. On the basis of this research, KIH-485 PRE causes unacceptable injury in some dry bean market classes.
引用
收藏
页码:230 / 234
页数:5
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