Response of Four Dry Bean Market Classes to Pre-Emergence Applications of Pyroxasulfone, Sulfentrazone and Pyroxasulfone plus SulfentrazoneReportar como inadecuado




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Onlyone herbicide mode of action ALS inhibitor is currently available to Ontariodry bean producers for soil-applied broadleaf weed control. Four field studieswere conducted over two years 2014, 2015 to examine the tolerance of fourmarket classes of dry beans to sulfentrazone 210 and 420 g·ai·ha-1and pyroxasulfone 100 and 200 g·ai·ha-1 applied alone and incombination. The registration of these two herbicides would provide Ontario drybean producers with two additional modes of action for broadleaf weed control.Pyroxasulfone caused up to 23%, 6%, 7% and 10% injury in adzuki, kidney, smallred Mexican and white bean, respectively; sulfentrazone caused up to 51%, 12%,15% and 44% injury and the combination caused up to 90%, 23%, 29% and 62%injury, respectively. Kidney and small red Mexican bean density, height, seedmoisture content and yield were not affected. Pyroxasulfone 200 g·ai·ha-1+ sulfentrazone 420 g·ai·ha-1 reduced adzuki and white beandensity, shoot dry weight, height and yield. This study concludes thatpyroxasulfone 100 g·ai·ha-1 + sulfentrazone 210 g·ai·ha-1applied PRE can be safely used to control weeds in Ontario kidney and small redMexican bean production.

KEYWORDS

Adzuki Bean Erimo, Kidney Bean Red Hawk, Small Red Mexican Bean Merlot, White Bean T9905, Crop Injury, Plant Density, Plant Height, Seed Moisture Content, Tolerance, Yield

Cite this paper

Taziar, A. , Soltani, N. , Shropshire, C. , Robinson, D. , Long, M. , Gillard, C. and Sikkema, P. 2016 Response of Four Dry Bean Market Classes to Pre-Emergence Applications of Pyroxasulfone, Sulfentrazone and Pyroxasulfone plus Sulfentrazone. American Journal of Plant Sciences, 7, 1217-1225. doi: 10.4236-ajps.2016.78117.





Autor: Allison N. Taziar1, Nader Soltani1, Christy Shropshire1, Darren E. Robinson1, Mitch Long2, Chris L. Gillard1, Peter H. Sikkema1

Fuente: http://www.scirp.org/



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