تاثير خلائط الطحالب البحرية كاوساط زراعية في انبات بذور الغلاديشيا Gleditsia triacanthos L. وفي موشرات نمو بادراتها

In this research residues of washed marine seaweed were used with forest floor, agricultural soil and sand (pure or mixtures of different ratios), to study the effect of substrates on seed germination and seedlings growth of Gleditsia triacanthos L. from the family Fabaceae.   The results showed the disqualification of unwashed marine seaweed residues as a pure growth medium for seed germination. Nevertheless, the addition of washed seaweed into mineral dust (sand, soil) improved the germination capacity (%) and growth indicators (length, weight, and quantity) in Gleditsia triacanthos L. It also revealed the possibility of using these residues, which are rich in organic matter and mineral salts brought to the beach by the tide, as a locally available component for the substrate. Economically speaking, this will be an inexpensive alternative and will reduce the costs caused by using imported substrates such as peat moss. At the same time, this will be an economic and effective solution for the management and disposal of marine plant waste and pollution problem caused by these residues. Consequently, it will lead to the aesthetic improvement of beaches and marine parks.