Navegando por Autor "Sousa, Eduardo Monteiro de"

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    Desempenho agronômico de cultivares de soja no alto sertão alagoano
    (INSTITUTO FEDERAL DE ALAGOAS - Ifal, 2024-09-11) Sousa, Eduardo Monteiro de; Costa, Kleyton Danilo da Silva; https://orcid.org/0000-0003-4631-3240; http://lattes.cnpq.br/3562128215536520; Souza, Almir Rogerio Evangelista de; https://orcid.org/0000-0002-9266-5063; http://lattes.cnpq.br/5565092143060833; Costa, Kleyton Danilo da Silva; https://orcid.org/0000-0003-4631-3240; http://lattes.cnpq.br/3562128215536520; Souza, Ênio Gomes Flôr; http://lattes.cnpq.br/9225008513028085
    Soybean production in Brazil has reached significant levels, consolidating the country as one of the main global producers. However, adapting soybean cultivars to different regions and climatic conditions is a constant challenge, especially in areas such as the Alto Sertão Alagoano, which has different soil and climate conditions than traditional producing regions. Therefore, the objective was to evaluate the agronomic performance of soybean cultivars in the Alto Sertão Alagoano. The experimental trial was carried out between August 1 and November 30, 2023, in the field, at the Xingó Center for Coexistence with the Semi-Arid, located in the city of Piranhas-AL. The experimental design was in randomized blocks, with five replications. The treatments consisted of four soybean cultivars (BRS 8383 IPRO, BRS 7981 IPRO, BRS 8680 IPRO and BRS 8980 IPRO). The spacing used in the crop was 50 cm between rows and 12.5 seeds per meter, totaling a population of around 250,000 plants per hectare. During the studies, the following agronomic characteristics were analyzed: phenological monitoring, plant height (AP), lodging index (ACA), height of insertion of the first pod (APV), number of pods per plant (NVP), weight of one hundred grains (PCG), grain moisture (U%), productivity in kg ha-1 (PROD.) and in bags ha-1 (SC). The plant evaluations were carried out in the Plant Production and Phytosanitary Laboratories of the Federal Institute of Alagoas, Piranhas Campus. Regarding the variables, AP, APV, ACA, PCG and NVP did not obtain a significant difference at 5% probability by the F test, presenting average values of 56.93 cm; 13.08 cm; 2.09; 12.35 g; 54.76, respectively. Regarding the variables U%, PROD. and SC, they showed a significant difference at 1% probability by the F test, in which the Tukey test was applied (p<0.05). Regarding U%, the cultivars BRS 8383 IPRO (9.8%), BRS 7981 IPRO (10.03%) and BRS 8980 IPRO (10.54%) did not differ from each other, unlike BRS 8680 IPRO (8.97%) which presented a lower moisture content. Productivity in kg ha-1 of the BRS 8980 IPRO cultivar (2,728.56 kg ha-1) stands out, the BRS 8680 IPRO (2,441.75 kg ha-1) and BRS 7981 IPRO (2,279.01 kg ha-1) cultivars presented intermediate values and the BRS 8383 IPRO cultivar (1,587.96 kg ha-1) presented the worst value compared to the others and yield of 45.50 sc ha-1; 40.69 sc ha-1; 37.98 sc ha-1 and 26.46 sc ha-1, respectively. The BRS 8980 IPRO cultivar stood out, being superior in the variables of grain moisture and productivity, showing excellent adaptation and stability in the Alto Sertão Alagoano.