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Ciência Rural

On-line version ISSN 1678-4596


MARCHIORETTO, Lucas De Ross  and  DAL MAGRO, Taísa. Weed control and crop selectivity of post-emergence herbicides in common beans. Cienc. Rural [online]. 2017, vol.47, n.3, e20160295.  Epub Jan 12, 2017. ISSN 1678-4596.

There are few options of wide spectrum selective herbicides registered for post-emergence weed control in common beans crop. The experiment aimed to test crop selectivity and weed control of post-emergence herbicides on common beans. Weed control, injury and grain yield were evaluated. Treatments consisted on: cloransulam-methyl, imazethapyr, fomesafen, bentazon and diclosulam isolated and tank-mixed with clethodim; imazamox+bentazon, fomesafen+fluazifop, clethodim; cloransulam+bentazon and imazethapyr+bentazon. Treatments were tested on the cultivars 'ANfc 9', 'IPR Uirapuru' and 'BRS Estilo'. The high-yielding treatments to the cultivar 'ANfc 9' were fomesafen alone and tank-mixed with clethodim or fluazifop, cloransulam and diclosulam tank-mixed with clethodim, and imazamox+bentazon. The high-yielding treatments with the cultivar 'IPR Uirapuru' was fomesafen tank-mixed with clethodim or fluazifop. High-yielding treatment to BRS Estilo was fomesafen+fluazifop. Bidens pilosa was controlled by all the treatments with broadleaf herbicides with exception of imazethapyr. Digitaria spp . was controlled by all treatments containing clethodim, fluazifop, fomesafen and imazethapyr. Treatments with cloransulam, diclosulam, fomesafen and imazamox were efficient to control Parthenium hysterophorus .

Keywords : 'ANfc 9'; 'BRS Estilo'; chemical control; 'IPR Uirapuru'; Phaseolus vulgaris.

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