<b>Comparative allelopathic effects of <i>Cryptocarya moschata</i> and <i>Ocotea odorifera</i> aqueous extracts on <i>Lactuca sativa</i></b> - doi: 10.4025/actasciagron.v35i2.15758

  • Franciele Carla Prichoa Universidade Regional Integrada do Alto Uruguai e das Missões
  • Gabriela Leyser Universidade Regional Integrada do Alto Uruguai e das Missões
  • José Vladimir de Oliveira Universidade Federal de Santa Catarina
  • Rogério Luis Cansian Universidade Regional Integrada do Alto Uruguai e das Missões
Palavras-chave: allelopathy, allelochemical, Lauraceae, germination

Resumo

The aim of this work was to compare the allelopathic effects of aqueous leaf extracts from Cryptocarya moschata and Ocotea odorifera on the seed germination and initial growth of Lactuca sativa (lettuce). The extracts were prepared by cold maceration, which was accomplished by adding distilled water to the dried plant material 1:10 (w v-1) and grinding. The treatment concentrations (0, 0.25, 0.5, 0.75 and 1%) were obtained by dissolving the dried crude extract in distilled water. The allelopathic potential of the dried Ocotea odorifera and Cryptocarya moschata leaves on Lactuca sativa was observed through reduction of the percentage of seeds that germinated, the index of germination and the length of the roots as well as structural abnormalities in L. sativa seedlings. For both extracts, the extract concentration and allelopathic effect were highly correlated. However, the C. moschata extract had no effect on caulicle length at the different tested concentrations.

 

Downloads

Não há dados estatísticos.
Publicado
2012-12-20
Como Citar
Prichoa, F. C., Leyser, G., Oliveira, J. V. de, & Cansian, R. L. (2012). <b>Comparative allelopathic effects of <i>Cryptocarya moschata</i> and <i>Ocotea odorifera</i> aqueous extracts on <i>Lactuca sativa</i></b&gt; - doi: 10.4025/actasciagron.v35i2.15758. Acta Scientiarum. Agronomy, 35(2), 197-202. https://doi.org/10.4025/actasciagron.v35i2.15758
Seção
Produção Vegetal

 

2.0
2019CiteScore
 
 
60th percentile
Powered by  Scopus

 

2.0
2019CiteScore
 
 
60th percentile
Powered by  Scopus