NICOTINAMIDE, Azospirillum brasilense, AND A MIXTURE OF PHYTOHORMONES AS BIOSTIMULANTS IN CORN

• Autor(a) principal: Pires Gaiotto, Augusto Henrique
• Data de Publicação: 2023
• Outros Autores: Ferreira Lima, Sebstião, Santos, Eduarda Samara, Ferreira, Lincoln Lara, Ferreira, Eduardo Pedroso, Slaviero, Guilherme
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Revista de Agricultura Neotropical
• Texto Completo: https://periodicosonline.uems.br/index.php/agrineo/article/view/7082
• topic: Zea mays; Vitaminas; Promotor de crescimento; Zea mays; Vitamins; Growth promoter

Biostimulants are products capable of improving the performance of the corn crop, resulting in higher grain yields. This study aimed to evaluate the effect of foliar application of nicotinamide, A. brasilense, and synthetic phytohormones applied as biostimulants in corn plants. A randomized block design with eight treatments and four repetitions was used. The treatments consisted of the isolated or combined application of nicotinamide at 800 mg L-1 water concentration, Azospirillum brasilense at a dose of 500 mL ha-1, and a mixture of phytohormones at a dose of 500 mL ha-1. Growth traits, yield components, and grain yield of corn were evaluated. The isolated use of the phytohormone mixture favored corn plants grown, promoting an increase of 24.3, 29.2, and 21.2% in grain mass per ear, 1000-grain weight, and grain yield, respectively. The grain yield reached with this treatment was 8155 kg ha-1. The highest value for leaf chlorophyll index was obtained with the isolated use of A. brasilense. Nicotinamide alone and the mixture of biostimulants were unfavorable for the variables evaluated because they did not overcome the control. However, they did not harm the performance of the variables.