Acacia Mellifera تأثير معاملات كسر السكون على خصائص إنبات بذور السنط

Ibrahim A.  Eshkab; Abdullah  Baitelmal; Mahmood B.  Shanta

doi:10.54172/mjsc.v33i1.49

Authors

Ibrahim A. Eshkab Department of Forest - Faculty of Agriculture, University of Tripoli, Tripoli, Libya.
Abdullah Baitelmal Department of Forest - Faculty of Agriculture, University of Tripoli, Tripoli, Libya.
Mahmood B. Shanta Department of Forest - Faculty of Agriculture, University of Tripoli, Tripoli, Libya.

DOI:

https://doi.org/10.54172/mjsc.v33i1.49

Keywords:

Acacia mellifera, physical dormancy, seed scarification, seed germination

Abstract

This study was conducted to evaluate the Response of Acacia mellifera seeds to dormancy breaking treatments. The examined treatments were physical scarification (Scrification), boiling water (on source heating) at 30, 45, 60 and 90 seconds, soaking the seeds in boiled water and left to cool down for 12 hours and soaking in tap water for 24 hours. The results of the study showed that mechanical scarification was superior in enhancing seed germination percentage (G%), germination rate (GR), mean daily germination (MDG), germination rate index (GRI) and Coefficient velocity of germination (CVG). The rest of treatments did not improve the measured indices compared with untreated control. It was also observed that the germination percentage and germination rate index of A. mellifera seeds dramatically decreased with increasing the time of exposure to boiling water. The results of this study revealed that seeds of A. millfera possess a physical dormancy, thus requires pre-germination treatments to germinate satisfactorily. Mechanical scarification was proved to be the most effective treatment in enhancing the germination traits which reflects seed vigor. Thus, this enhancement will probably have a positive impact on nursery operations and afforestation programs.

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