Formação de mudas de cafeeiro em substratos oriundos de diferentes métodos de desinfestação
Data
2006-04
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Editor
Instituto Agronômico (IAC)
Resumo
Objetivando verificar o desenvolvimento de cafeeiro oriundos de diferentes métodos de tratamento de substratos utilizados na produção de mudas em saquinhos de polietileno, instalou-se em maio/2004 em um viveiro na Universidade Federal de Lavras o presente experimento. Foram utilizados treze tratamentos para a desinfestação de substratos, sendo utilizado o padrão para mudas de café com solo coletado de uma lavoura cafeeira de 20 anos. Utilizou-se a cultivar paraíso H 419-1. Avaliou-se o crescimento das plantas de cafeeiro quando estavam com 5 pares de folhas verdadeiras, sendo: altura de plantas (cm), diâmetro de caule (mm), massa seca do sistema radicular (g), massa seca da parte aérea (g), número de nós da inserção foliar do ramo ortotrópico da muda e área foliar total (cm2). Concluiu-se que o uso do coletor solar é promissor para a desinfestação de substratos por proporcionar bom desenvolvimento de mudas de cafeeiro, a exemplo do brometo de metila.
The objective of this work was to evaluate the development of coffee seedlings grown in bag mixture disinfested by different methods. The work was carried out in a high cover coffee nursery at Federal University of Lavras, State of Minas Gerais, Brazil, in May/2004. The bag mixture was prepared using soil from a 20 years old coffee field. Thirteen disinfestations methods were used in bag mixture. The cultivar paraíso H 419-1 was used in all treatments. The growth was evaluated when the plants had five pairs of mature leaves. The following parameters were analyzed: height (cm), girth diameter (mm), root and shoot dry weight (g), number of orthotropic nodes, and total leaf area (cm2). It was concluded that methyl bromide promoted the best coffee seedlings development. The use of the solar collector was also considered promising for substrate disinfestations in commercial nurseries, as observed for the methyl bromide.
The objective of this work was to evaluate the development of coffee seedlings grown in bag mixture disinfested by different methods. The work was carried out in a high cover coffee nursery at Federal University of Lavras, State of Minas Gerais, Brazil, in May/2004. The bag mixture was prepared using soil from a 20 years old coffee field. Thirteen disinfestations methods were used in bag mixture. The cultivar paraíso H 419-1 was used in all treatments. The growth was evaluated when the plants had five pairs of mature leaves. The following parameters were analyzed: height (cm), girth diameter (mm), root and shoot dry weight (g), number of orthotropic nodes, and total leaf area (cm2). It was concluded that methyl bromide promoted the best coffee seedlings development. The use of the solar collector was also considered promising for substrate disinfestations in commercial nurseries, as observed for the methyl bromide.
Descrição
Palavras-chave
Desinfestação, Substratos, Brometo de metila, Mudas
Citação
MIRANDA, G. R. B. et al. Formação de mudas de cafeeiro em substratos oriundos de diferentes métodos de desinfestação. Bragantia, Campinas, v. 65, n. 2, p. 303-307, Abr./Jun. 2006.