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Influência de Bioestimulantes e Nutrientes na Emergência e no Crescimento Inicial de Feijão, Soja e Milho

2016; Volume: 15; Issue: 1 Linguagem: Inglês

10.18512/1980-6477/rbms.v15n1p86-93

1980-6477

A.F. Bontempo, Flávia Maria Alves, G.D.O.P. Carneiro, L.G. Machado, Luiz O. D. Silva, Leonardo Ângelo de Aquino,

Growth and nutrition in plants

RESUMO - Novas tecnicas vem sendo desenvolvidas com o intuito de otimizar o crescimento das plantas. Dentre elas, o tratamento de sementes com bioestimulantes, nutrientes e aminoacidos visa a aumentar o crescimento inicial de plantas no campo e a torna-las menos suscetiveis aos estresses na emergencia. Com isso, objetivou-se ava liar o efeito do tratamento de sementes com bioestimulantes e nutrientes na emergencia e no crescimento inicial de milho, soja e feijao. Os experimentos foram conduzidos na Universidade Federal de Vicosa – campus Rio Paranaiba, em Rio Paranaiba, MG, a campo (teste de emergencia) e em casa de vegetacao (crescimento), ambos em delineamento inteiramente casualizado. Os tratamentos consistiram de produtos utilizados como promotores de enraizamento no tratamento de sementes e de dois controles: molibdato de amonio; e sem tratamento. As doses foram as indicadas pelos fabricantes. Nao houve diferenca significativa para emergencia, indice de velocidade de emergencia, velocidade de emergencia, materia seca de parte aerea e raiz para feijao, milho e soja. Houve aumento ou reducao do volume de raizes de acordo com o tratamento para o milho e para a soja. Os produtos testados como bioestimulantes e nutrientes nao influenciaram a emergencia e o crescimento inicial das plantas de milho, soja e feijao. Palavras-chave: promotores de enraizamento; Phaseolus vulgaris; Zea mays; Glycine max. EFFECT OF BIOSTIMULANTS AND NUTRIENTS ON SEED GERMINATION AND GROWTH OF BEANS, CORN AND SOYBEAN ABSTRACT - New technologies have been developed in order to optimize plant growth. Among them, the seed treatment with stimulating, amino acids and micronutrients aims to increase the early growth of the plants in the field and make them less susceptible to stress in emergence. Thus, the aim of this study was to evaluate the effect of seed treatment with stimulating and nutrients on emergence and early growth of corn, soy and beans. The experiments were conducted at the Federal University of Vicosa - Campus Rio Paranaiba, in Rio Paranaiba – Minas Gerais, at field (germination test) and greenhouse (growth), using a completely randomized design. Treatments consisted of seed treatment with products used as rooting promoters and two controls, ammonium molybdate and untreated. Dosages of products followed the manufacturer’s recommendation. No significant difference was observed for emergence, emergence speed index, speed of emergence, dry matter of shoot and root for beans, corn and soybeans. An increase or decrease in the volume of roots was observed depending on the treatment for corn and soybeans. The products used as stimulating and nutrients did not affect the emergence and early growth of plants of corn, soybeans and beans. Key words: root development; Phaseolus vulgaris; Zea mays; Glycine max.