Efeito de hormônio brassinosteróide, aplicado em diferentes estadios fenológicos, no rendimento de grãos do milho

• Autor(a) principal: Souza, Thiago Piccin Duarte de
• Data de Publicação: 2021
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/214230
• topic: Brassinosteroids; Plant regulators; Brassinosteróide; Zea mays; Reguladores vegetais

Considering the economic importance, corn (Zea mays) is grown in practically all continents and is used in different stages of industry, animal production and human food. That is why studies have been carried out to increase productivity. Thus, cultural treatments that involve the application of plant regulators, can come to achieve the expected productivity. Therefore, the present work had as objective to verify the effect of the application of the hormone Brassinosteroids in the culture of the corn. The treatments were arranged in randomized blocks with four replications, in a factorial scheme (4 x 3) + 1, with four doses of the hormone, two phenological stages of plants (3 and 7 developed leaves) plus combination of the same and a control without hormone. The traits analyzed were: Percentage of plants with tiller, Days to silking, Prolificacy, Percentage of plastered ears, Ear length, Ear diameter, Ear yield and Grain yield. The application of Brassinesteroids did not influence the observed agronomic characteristics. Lack of bibliographic references made it difficult to choose the ideal phase to apply the hormone, which allows to conclude that more tests with the hormone are necessary at the field level, with application in other phenological stages, higher doses and with different hybrids.