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Bragantia

Print version ISSN 0006-8705

Bragantia vol.22 no.unico Campinas  1963

http://dx.doi.org/10.1590/S0006-87051963000100006 

Sistema radicular do fórmio, sisal e bambu imperial

 

Root systems of new zealand flax, sisal, and imperial bamboo

 

 

Júlio César MedinaI; Romeu InforzatoII; Armando PettinelliIII; Luiz Carlos de Toledo PintoIV

IEngenheiro-agrônomo, Seção de Plantas Fibrosas
IIEngenheiro-agrônomo, Seção de Fisiologia
IIIEngenheiro-agrônomo, M'siação Experimental de Tatuí, Instituto Agronômico
IVEngenheiro- agrônomo, Fazenda Pinhal

 

 


RESUMO

Os autores apresentam e discutem os resultados de estudos preliminares sôbre o sistema radicular do fórmio (Phormium tenax Forster), sisal (Agave sisalana Perrine) e bambu .imperial (Bambusa vulgaris Schrad. var. vittata A. ,& C, Riv.).
Concluem, que o sistema radicular do fórmio é relativamente raso, o do sisal bastante superficial é o do bambu imperial se limitada às primeiras carnadas do solo.


SUMMARY

Results of preliminary studies on root-systems of New Zealand flax (Phormium tenax Forster), sisal (Agave sisalana Perrine), and imperial bamboo (Bambusa vulgaris Schrad. var. vittata A. & C. Riv.) plants by the method of soil block, are apresented and discussed by the authors.
According to local soil conditions, it is concluded that the root-system of New Zealand flax is relatively superficial, with the main concentration of roots in the 12 in. soil top layer. In sisal, the root-systems of the three plants investigated were found to occur in the soil surface layer, with more of 90% of the roots in the top 6 in. Finally, in the imperial bamboo clump atudied, the main concentration of roots was found in the layer 6-12 in. deep.


 

 

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LITERATURA CITADA

1. FRANCO, C.M. & INFORZATO, E. O sistema radicular do cafeeiro nos principais tipos de solo do Estado de São Paulo. Bragantia 6:[443]-478. 1946.         [ Links ]

2. GLOVER, J. The root-system of Agave sisalana in certain Eeast African soils. Emp. J. Exp. Agric. 8(25):11-20. 1939.         [ Links ]

3. ____________The root-system of sisal in some East African soils. East. Afr. Agric. Jour. 5:18-22. 1939.         [ Links ]

4. KHANNA, K. L. Some observations on bamboos. Indian J. Agric. Sci. 1:473.479. 1931.         [ Links ]

 

 

Recebido para publicação em 21 de setembro de 1962.

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