SciELO - Scientific Electronic Library Online

 
vol.41 issue3Overcome dormancy in seeds of Delonix regia (Fabaceae)Allelopathy of Ambrosia artemisiifolia on germination and growth of maize and soybean seedlings author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • Have no similar articlesSimilars in SciELO

Share


Revista de Ciências Agrárias

Print version ISSN 0871-018X

Abstract

HIRATA, Daniely Bindaco et al. Allelopathic effect of the essential oil of Cymbopogon nardus and Annona muricata extract on the germination of Bidens pilosa and Megathyrsus maximus. Rev. de Ciências Agrárias [online]. 2018, vol.41, n.3, pp.141-150. ISSN 0871-018X.  http://dx.doi.org/10.19084/RCA17317.

The objective of this work was to verify the allelopathic effect of the essential oil of citronella (Cymbopogon nardus) and soursop leaf extract (Annona muricata) on the germination of beggartick’s (Bidens pilosa) and Guinea grass’ seeds (Megathyrsus maximus). The treatments were: citronella essential oil at the following concentrations: 0.25, 0.5, 1.0 and 1.5 mL/L (v/v) and aqueous soursop extracts at concentrations of 25, 50, 75 and 100% (v / v), and a control group of distilled water. The experimental design was completely randomized, and the statistical analysis were ran with a Regression in Analysis of Variance. The parameters evaluated were: relative germination frequency, percentage of germination, average germination time, average germination speed and germination speed index. The results showed that citronella oil was effective in all concentrations: the higher the concentration, the higher was the effect on beggartick and Guinea grass seed germination. The highest concentrations of soursop extract interfered in the all the parameters of beggartick as well as in Guinea grass.

Keywords : weeds; seeds; allelopathy; herbicides; management.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License