Allelopathic action of some weed extracts on rice germination

Authors

  • Paulo R.C. Castro USP; E.S.A. Luiz de Queiroz; Departamento de Botânica
  • João D. Rodrigues UNESP; IBBMA; Departamento de Botânica
  • Rita C.S. Maimoni-Rodella UNESP; IBBMA; Departamento de Botânica
  • Julio C. Rabelo UNESP
  • Renato F.A. Veiga UNESP
  • Giuseppina P.P. Lima UNESP
  • Pedro Jureidini UNESP
  • Irene A.M. Denadai UNESP

DOI:

https://doi.org/10.1590/S0071-12761984000100022

Abstract

The present study was carried out to evaluate the possible allelopathic effects of Cynodon dactylon, Cyperus rotundus and Sorghum halepense on seed germination of Oryza sativa cv. IAC-165. Extracts from roots of Cynodon dactylon and Sorghum halepense and from tubers of Cyperus rotundas were used to evaluate the effects on rice seed germination. Aqueous solution of these organs, obtained by homogenization, filtration and centrifugation, were introduced on Petri dishes containing rice seeds. The evaluation of germination and initial growth showed a strong negative allelopathic effect of all three weeds studied.

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Published

1984-01-01

Issue

Vol. 41 No. 1 (1984)

Section

nao definida

How to Cite

Castro, P. R., Rodrigues, J. D., Maimoni-Rodella, R. C., Rabelo, J. C., Veiga, R. F., Lima, G. P., Jureidini, P., & Denadai, I. A. (1984). Allelopathic action of some weed extracts on rice germination . Anais Da Escola Superior De Agricultura Luiz De Queiroz, 41(1), 369-381. https://doi.org/10.1590/S0071-12761984000100022