The DNA analyses described here, in particular the co-occurrence of cultivated and wild barleys
in each of groups A-D, together with the possibly distinct geographic origins of cultivars in each of these groups, lends support to the growing body of evidence for a polyphyletic origin of domesticated barley (e.
Plant leaf extracts effects on wild barley seed germination and root and shoot growth are shown in Table 1.
Leaf water extract from different plants species showed inhibitory effects on germination and root and shoot growth of wild barley (Table 2).
The effects of plant root extracts on wild barley seed germination and root and shoot growth are shown in Table 2.
Most of species which reduced wild barley growth also reduced wheat root growth.
Although leaf extract of sunflower, chick pea and chickling pea significantly reduced wild barley germination and root and shoot growth, they showed no significant inhibitory effect on wheat root growth.
Results clearly demonstrated that most of the plant species tested inhibited seed germination and root and shoot growth of wild barley and wheat.