Studies on the mineral nutrition of the rice plant: XV. root and foliar uptake of radiophosphate by the varieties IAC-47 and IAC-435

Authors

  • E. Malavolta USP; E.S.A. Luiz de Queiroz; Departamento de Química
  • A.M. de Almeida USP; E.S.A. Luiz de Queiroz; Departamento de Química
  • E.A. Fernandes USP; E.S.A. Luiz de Queiroz; Departamento de Química
  • I.F. Mota USP; E.S.A. Luiz de Queiroz; Departamento de Química
  • J. Menechino Júnior USP; E.S.A. Luiz de Queiroz; Departamento de Química
  • M.M.P. Petrechen USP; E.S.A. Luiz de Queiroz; Departamento de Química
  • R. Goto USP; E.S.A. Luiz de Queiroz; Departamento de Química

DOI:

https://doi.org/10.1590/S0071-12761981000200014

Abstract

Root uptake either by excised roots or by intact young plants (3-4 week old) showed linearity in the period from 30 to 180 minutes of contact with the solution. Km values were the same for both varieties being, however, slightly lower in the case of excised roots. Foliar uptake was affect neither by source (monoammonium against diammonium phosphate) nor by the presence of urea in the same solution.

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Published

1981-01-01

Issue

Vol. 38 No. 2 (1981)

Section

nd924990452

How to Cite

Malavolta, E., Almeida, A. de, Fernandes, E., Mota, I., Menechino Júnior, J., Petrechen, M., & Goto, R. (1981). Studies on the mineral nutrition of the rice plant: XV. root and foliar uptake of radiophosphate by the varieties IAC-47 and IAC-435 . Anais Da Escola Superior De Agricultura Luiz De Queiroz, 38(2), 695-721. https://doi.org/10.1590/S0071-12761981000200014