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1 January 2007 Dry Bean Response to Preemergence-Applied Kih-485
Peter H. Sikkema, Christy Shropshire, Nader Soltani
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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.

Nomenclature: KIH-485, dry bean, Phaseolus vulgaris L. black ‘AC Harblack’, brown ‘Berna’, cranberry ‘Hooter’, kidney ‘Montcalm’, otebo ‘Hime’, pinto ‘GTS 900’, white ‘OAC Thunder’, yellow eye ‘GTS 1701’

Peter H. Sikkema, Christy Shropshire, and Nader Soltani "Dry Bean Response to Preemergence-Applied Kih-485," Weed Technology 21(1), 230-234, (1 January 2007).
Received: 16 March 2006; Accepted: 1 August 2006; Published: 1 January 2007

shoot dry weight
visual injury
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