Nicotinamida e fitohormônios como bioestimulantes em feijoeiro comum

Abstract

The bean crop (Phaseolus vulgaris L.) has great relevance in the national 22 economy, being produced in almost all regions of Brazil. However, the application of new 23 technologies for better crop development is necessary, such as the use of phytohormones 24 and plant vitamins that help plant development, promoting better productive results. The 25 objective of this work was to evaluate the effects of the application of vitamin

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26 nicotinamide and phytohormones, as biostimulants, in common bean. The experimental 27 design used was in randomized blocks, in a 2 x 5 factorial scheme, with 4 replications. 28 The treatments consisted of the application of five doses of foliar nicotinamide (0, 200, 400, 600 and 800 mg L-1 ), in the presence or absence of the phytohormone Stimulate® 29 . 30 Growth characteristics, yield components and bean grain yield were evaluated. The use 31 of phytohormones and nicotinamide, alone or together, favored the growth, yield components and grain yield of common bean. The range of 366 to 469 mL L-1 32 of 33 nicotinamide met the highest values for the variables of growth, production components and grain yield of common bean, with 414 mL L-1 34 being the most suitable for achieving 35 higher grain yield.