Produção e desenvolvimento radicular de plantas de café 'Conilon' propagadas por sementes e por estacas
Data
2006-06
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Editor
Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Resumo
O objetivo deste trabalho foi avaliar a produção e o desenvolvimento radicular e da parte aérea de plantas de café 'Conilon', provenientes de sementes e de estacas, no Município de Vila Valério, ES. Foi utilizado o delineamento experimental em blocos ao acaso com dois tratamentos (mudas provenientes de sementes e de estacas) e 12 repetições com cinco plantas úteis por parcela. As avaliações da parte aérea foram realizadas a partir de sete meses do plantio. Foram realizadas seis desbrotas e cinco colheitas. A avaliação do sistema radicular foi realizada aos 52 meses depois do plantio em quatro profundidades (0–10, 10–20, 20–40 e 40–60 cm). Foram quantificados o diâmetro, o comprimento e a área superficial de raízes. As plantas propagadas por estaca emitiram maior número de ramos plagiotrópicos, durante os sete primeiros meses de idade, e menor número de brotos ortotrópicos durante todo o experimento. Não houve diferenças no comprimento e na área superficial de raízes finas, entre plantas propagadas por sementes e por estacas. Houve maior concentração de raízes finas nas camadas superficiais do solo. A produtividade das plantas propagadas por estacas é maior do que a das plantas propagadas por sementes.
The objective of this work was to evaluate the production and root and shoot development of plants of 'Conilon' coffee, grown from seeds and branches, in Vila Valério, ES, Brazil. The experiment was performed in randomized complete block design, with two treatments (seedlings originated from seeds and branches), and 12 replicates with five plants per plot. Shoot growth evaluation was performed seven months after planting. Six pruning of the orthotropic branches and five yields were evaluated. The evaluation of the root system was done 52 months after planting in four depths (0–10, 10–20, 20–40 and 40–60 cm). Diameter, length and superficial area of roots were quantified. Plants grown from cuttings produced more plagiotropic branches, during the first seven months, and less orthotropic branches throughout the experimental period. There were no differences either in length or superficial area of roots from plants propagated by seeds or cuttings. There was a greater concentration of fine roots in the superficial layers of the soil. The productivity of plants grown from cuttings is higher than that observed in plants grown from seeds.
The objective of this work was to evaluate the production and root and shoot development of plants of 'Conilon' coffee, grown from seeds and branches, in Vila Valério, ES, Brazil. The experiment was performed in randomized complete block design, with two treatments (seedlings originated from seeds and branches), and 12 replicates with five plants per plot. Shoot growth evaluation was performed seven months after planting. Six pruning of the orthotropic branches and five yields were evaluated. The evaluation of the root system was done 52 months after planting in four depths (0–10, 10–20, 20–40 and 40–60 cm). Diameter, length and superficial area of roots were quantified. Plants grown from cuttings produced more plagiotropic branches, during the first seven months, and less orthotropic branches throughout the experimental period. There were no differences either in length or superficial area of roots from plants propagated by seeds or cuttings. There was a greater concentration of fine roots in the superficial layers of the soil. The productivity of plants grown from cuttings is higher than that observed in plants grown from seeds.
Descrição
Palavras-chave
Coffea canephora, Propagação vegetativa, Raízes
Citação
PARTELLI, F. L. et al. Produção e desenvolvimento radicular de plantas de café 'Conilon' propagadas por sementes e por estacas. Pesquisa Agropecuária Brasileira, Brasília, v.41, n.6, p.949-954, jun. 2006.