The Effect of Aqueous Leaves Extracts of Eucalyptus camaldulensis on Germination and Growth of Three Weed Species | ||
| Rafidain Journal of Science | ||
| Article 1, Volume 24, Issue 3, March 2013, Pages 1-10 PDF (0 K) | ||
| DOI: 10.33899/rjs.2013.71034 | ||
| Authors | ||
| Janan A. Saeed; Eman R. Al-Rawi; Fatin K. Ibraheem | ||
| Abstract | ||
| This research included experiments in laboratory and green house to study the effect of Eucalyptus camaladulensis leaf extracts at concentrations ( 5,10 and 15) % W:V on seed germination and growth of the weeds (Datura spp., Sonchus spp. and Sinapis spp.). Laboratory experiment, showed an inhibition in germination and seedling growth as the aqueous extracts concentration increased. The maximum inhibition in (germination, plumule length and weight) reaching (30.51, 52.4,56.2)% respectively in Sinapis, while the maximum inhibition in radical growth (55.5,53.5)% was shown in Datura at (15%). Green house results also showed that the highest inhibition (26.96,58.66,45.6)% respectively in germination and (shoot length and weight)in Sinapis at (15%), and high inhibition in (root length and weight) was (56.97,75.7)% in Datura at (15%). The Results were accompanied with the inhibition in the content of N, P, K maximum inhibition of N content (58.73%) in Datura, of P content (75.47%) in Sinapis and of K content (49.93%) in Datura at (15%). The content of the K increases in Sonchus at (10,15)% and in Sinapis at (15%). It was also shown that the weeds differ in their response to the allelopathic effect of Eucalyptus leaves extracts,indicating that Sinapis weed was sensitive whereas Sonchus seems to be resistant. | ||
| Keywords | ||
| Allelopathy; Eucalyptus camaldulensis; Weeds | ||
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