Estudo comparativo do sistema radicular dos cafeeiros Bourbon amarelo e Mundo novo
Data
1963-11
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Instituto Agronômico (IAC)
Resumo
São apresentados resultados de determinações do desenvolvimento do sistema radicular do cafeeiro, variedades Bourbon Amarelo e Mundo Nôvo, em solo tipo terra-roxa-legítima. Os sistemas radiculares atingiram as profundidades médias de 3,70 m e 3,10 m, respectivamente, para Bourbon Amarelo e Mundo Nôvo. Em ambos os casos, cêrca de 90% das raízes foram encontradas na primeira camada de 50 cm de profundidade. Maior densidade de raízes finas foi encontrada nas proximidades dos troncos, dentro de um círculo de raio de 75 cm.
This paper presents the results obtained from a comparative study of the root system of two coffee varieties, i.e. Bourbon Amarelo and Mundo Novo cultivated in "terra-roxa-legítima" soil and receiving only mineral fertilizers. The root systems of the two varieties reached respectively the depths of 3.7 and 3.1 meters. Down to a depth of 2 meters both of them showed considerable amounts of roots, but about 90% of the total was present in the upper layer of 50 centimeters. The fine roots appeared in great density near the stems in a circle oE 75 centimeters of radius in the layer of 50 centimeters of depth.
This paper presents the results obtained from a comparative study of the root system of two coffee varieties, i.e. Bourbon Amarelo and Mundo Novo cultivated in "terra-roxa-legítima" soil and receiving only mineral fertilizers. The root systems of the two varieties reached respectively the depths of 3.7 and 3.1 meters. Down to a depth of 2 meters both of them showed considerable amounts of roots, but about 90% of the total was present in the upper layer of 50 centimeters. The fine roots appeared in great density near the stems in a circle oE 75 centimeters of radius in the layer of 50 centimeters of depth.
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INFORZATO, R.; REIS, A. J. Estudo comparativo do sistema radicular dos cafeeiros Bourbon amarelo e Mundo novo. Bragantia, Campinas, v. 22, n. 59, p. 741-750, nov. 1963.