Allelopathic effect of Eucalyptus globulus Labill. on bermuda grass (Cynodon dactylon (L.) Pers.) germination and rhizome growth | ||
| تحقیقات گیاهان دارویی و معطر ایران | ||
| Article 6, Volume 25, Issue 3 - Serial Number 45, November 2009, Pages 333-346 PDF (433.52 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.22092/ijmapr.2009.7148 | ||
| Authors | ||
| M.Sh. Daneshmandi* 1; M. Azizi2 | ||
| 1Khorasan Applied Science University, Mashhad, Iran | ||
| 2Department of Horticultural Science, Ferdowsi University of Mashhad, Iran | ||
| Abstract | ||
| In this research, the inhibitory effect of Eucalyptus globulus Labill. on germination and rhizome growth of Cynodon dactylon (L.) Pers. weed in three separate experiments were studied. In first experiment, after growing the weed, effects of different concentration of essential oils (20ppm, 50ppm, 100ppm) as spray treatment on growth of the weed were investigated. In second experiment, effect of different level of Eucalyptus leaf litter (2, 5 and 10 w/w) as mulch treatments on germination of weed rhizome growth in a pot experiment were studied. In third experiment, effect of different concentrations of essential oils (20ppm, 50ppm, 100ppm) and leaf extract (25%, 50% and 75% water alcoholic extract) on in vitro rhizome germination were studied. Results indicated that leaf mulch had strong inhibitory effects on rhizome germination, that rhizome germination completely stopped in 50% w/w of mulch treatments. The highest number of germinated node (10.75 node/rhizome) was obtained in control treatment and the lowest one (1.5 node/rhizome) was detected in 10% mulch treatment. Essential oils spraying also showed inhibitory effect. After four months of spraying, all weeds became dried and died. Extract treatments also reduced growth of the weed as in lower concentration of extract (25%), germination of the rhizome was almost 66%, but in higher concentration (50% and 75%) complete inhibition of germination process take place. It was concluded that Eucalyptus globulus has a good potential to control Cynodon dactylon weed and it can be used as a herbicide in organic culture of the agricultural crops. | ||
| Keywords | ||
| Eucalyptus globulus; Cynodon dactylon (L.) Pers; Allelopathic; Essential oils; Extract; Mulch | ||
| References | ||
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