Investigation on Allelopathic effects of Atriplex canescens (fourwing sultbush) on seed germination of Salsola rigida
2009
Dehdari, S., MSc Student in Range Management | Jafari, M., Professor in Natural Resource Faculty of Tehran University | Hamedanian, F., MSc Student in Rage Management in Tehran University | Tavili, A., Assistant Professor in Natural Resource Faculty of Tehran University
One of the basic methods for improving rangelands of the country is use of native and non-native species to improve them. One of non-native species is Atriplex canescens which is cultivated in many rangelands but the necessary point in this project is effects of these species on native species of the region. In the current study effect of chemical competition (allelopathy) of mentioned species on germination of Salsola rigida was studied. Salsola rigida is known as a native species that has good quality in arid and semi-arid rangelands. For this survey 10% weight / volume(w/v) extract from leaves and fruits of A. canescens was prepared and 25%, 50%, 75% and 100% concentrations were obtained with addition of distilled water and control treatment (distilled water) were used as another treatment. Five mentioned treatments with four replications in the form of completely randomized design (CRD) in germination was studied for 8 days and different groups of treatments was categorized by Duncan test. The obtain results showed that available material in shoots of Atriplex canescens (fruits and leaves) have allelopathic effect on germination of Salsola rigida include of Final germination (FG)¡ Mean period of final germination (MPFG)¡ Rate of germination (RG)¡ Percentage inhibition or stimulation¡ (p0/01).
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