INFLUENCE OF PESTICIDE CHEMICALS IN AZOSPIRILLUM BRASILENSE PERFORMANCE IN SPRAYING THE BEAN-COMMON CULTURE

Abstract

THE OBJECTIVE OF THIS STUDY WAS TO EVALUATE THE PERFORMANCE OF BRASILENSE AZOSPIRILLUM BACTERIUM SPRAYING WITH INSECTICIDES AND FUNGICIDES IN THE DEVELOPMENT AND PRODUCTION IN COMMON BEAN CROP. THE EXPERIMENT WAS CONDUCTED IN A PRIVATE LAND LOCATED IN THE CITY OF GOIAN�SIA - GOI�S, WHOSE PLANTING WAS HELD ON APRIL 24, 2016 USING THE SEED OF COMMON BEAN-TO BRS REFINEMENT. THEY WERE CONDUCTED 7 TREATMENTS WITH 4 REPLICATIONS IN POTS OF 8KG. THE APPLIED DESIGN WAS A RANDOMIZED COMPLETE BLOCK. THEY WERE USED FOR SPRAYING WITH THE BACTERIA AZOSPIRILLUM BRASILENSE INSECTICIDES AND FUNGICIDES USED BY MOST PRODUCERS IN THE MIDWEST. IN STAGE PHENOLOGICAL R₆ (FULL BLOOM) OF COMMON BEAN THE FIRST DATA WERE OBTAINED THROUGH THE ASSESSMENTS CONDUCTED ON MAY 22, 2016, WHICH WAS EVALUATED PLANT HEIGHT (AP - CM PLANT^-1), ROOT LENGTH (CR - CM PLANT^-1), WEIGHT OF ROOT DRY MASS (PMSR - G PLANT^-1), COUNTING THE NUMBER OF LEAVES PER PLANT (NF - NO PLANT^-1), LEAF AREA (AF-CM2 PLANT^-1) .IN PHENOLOGICAL STAGE (R₉) PHASE OF PHYSIOLOGICAL MATURITY, WERE CARRIED OUT THE FOLLOWING EVALUATIONS: NUMBER OF PODS (NV); NUMBER OF GRAINS PER PLANT (NG); WEIGHING 100 GRAINS (P100G) AND GRAIN YIELD IN KG HA^-1 (PG). THE T.RAFP TREATMENT (RHIZOBIUM TROPICI 2 DOSES / 50 KG SEED + SPRAYING AZOSPIRILLUM BRASILENSE 3 DOSES + FLUXAPYROXAD PYRACLOSTROBIN + 0.3 L HA^-1 IN V₂ / V₃) SHOWED LESS TOXICITY TO BACTERIA AZOSPIRILLUM BRASILENSE GETTING SMALLER DELETERIOUS EFFECT OF THESE BACTERIA . THE T.RALC TREATMENT (RHIZOBIUM TROPICI 2 DOSES / 50 KG SEED + SPRAYING AZOSPIRILLUM BRASILENSE 3 DOSES + LAMBDA CYHALOTHRIN 0.15 L HA^-1 IN V₂ / V₃) INSECTICIDES AND PYRETHROID WAS MORE TOXIC TO BACTERIA A. BRASILENSE INTERFERING WITH YOUR PERFORMANCE FOR THE PRODUCTION OF GRAINS (PG) IN KG HA-1.NESTE WORK MOST USED CHEMICAL PESTICIDES DID NOT AFFECT THE INOCULATION OF THE BACTERIUM A. BRASILENSE, SINCE ALL SHOWED AN INCREASE IN THE COMMON BEAN CULTURE BOTH THE FLOWERING STAGE (R₆) OR PHYSIOLOGICAL MATURITY STAGE (R₉).