Communications in Plant Sciences, vol 8, p. 29-35, 2019 (2019005)
Application of pyraclostrobin as an alternative to reduce phytotoxification of fomesafen in common bean
Jaqueline Schmitt*, Wilian Jochem, Guilherme Romani de Mello, Juliano José Schiessel, Samyra Coratto Demartini, Samuel Luiz Fioreze, Antonio Mendes de Oliveira Neto and Naiara Guerra
*Correspondence to: firstname.lastname@example.org
Abstract: The herbicide fomesafen is one of the few broadleaf herbicides for the post-emergence application in common bean. However, this application can cause phytointoxication to this crop, therefore the objective was to evaluate the application of the fungicide pyraclostrobin for reducing herbicide phytotoxification in common bean. The experimental design was a randomized block design, with ten treatments and four replicates. The treatments resulted from the combination of isolated or associated applications of fomesafen and pyraclostrobin at different stages of common bean development (V2, V3 and V4). We evaluated herbicide phytotoxicity, photosynthetic rate, weight of pods per plant, weight of 1,000 grams and grain yield. The injuries caused by fomesafen were low. The treatments did not affect both the photosynthetic rates and the yield components of bean. In general, the treatments that pyraclostrobin were applied had higher production. The application of pyraclostrobin favored the selectivity of herbicide fomesafen to common bean cultivar IPR Tangará.
The application of pyraclostrobin favors the selectivity of herbicide fomesafen to common bean ‘IPR Tangará’.
Keywords: Phaseolus vulgaris, Strobilurin, PROTOX inhibitor herbicide, Selectivity. (more…)