SciELO - Scientific Electronic Library Online

vol.36Longevity of Horseweed Seed Bank Depending on the Burial DepthApplication of Plant Growth Regulators to Stipa krylovii in the Xilin Gol Grassland author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Planta Daninha

Print version ISSN 0100-8358On-line version ISSN 1806-9681


AGOSTINETTO, D. et al. Response of Soybean Cultivars in Rotation with Irrigated Rice Crops Cultivated in Clearfield® System. Planta daninha [online]. 2018, vol.36, e018170991.  Epub July 10, 2018. ISSN 0100-8358.

Soybean crop rotation with irrigated rice is an alternative for the management of weedy rice (Oryza sativa) resistant to herbicides from the imidazolinone chemical group. This work had the purpose to evaluate the phytotoxicity of soybean crops containing the technologies Cultivance® (CV) and tolerance to sulphonylurea and Roundup Ready® (RR), deriving from increasing doses of the imazapyr and imazapic herbicide mixture, applied in the irrigated rice crop management. Thus, the experiment was performed on field, where treatments consisted in three soybean cultivars (BRS382CV, CD249STS and NA5909RR) and five doses of the imazapyr and imazapic herbicides mixture (0, 49, 98, 196 and 392 g a.i. ha-1). The evaluated variables were phytotoxicity, yield components and physiological quality of the seeds. Soybean cultivar BRS382CV is tolerant to herbicide carryover, applied in the management of weedy rice in irrigated rice crops, but the other cultivars are susceptible to it. Cultivar productivity, yield components and physiological quality of the seeds are affected by the carryover increase of the imazapyr and imazapic herbicide mixture.

Keywords : Oryza sativa; Glycine max; Cultivance®.

        · abstract in Portuguese     · text in English     · English ( pdf )