اثرآللوپاتی عصاره آبی بذر بالنگو (Lallemantia sp) و سرخارگل(‌ Echinaceac angustifolia .L) بر جوانه زنی و رشد علف هرز کلم (Brassica oleracea ) و یولاف وحشی(Avena sativa)

In order to evaluate the use of aqueous extract of Echinacea seeds Balngv and as a natural herbicide resistant weedsparticularly compared to its effect on monocot and dicot plants, Factorial experiments in completely randomized design with 3 replications, in seed technology laboratory, College of Agriculture, Tehran shahed in 1392 was performed. The treatments consisted of three aqueous extracts (control, balngv and conflower), and 2 samples with of weed plants (cabage and wild oat), respectively. The results of the interaction of aqueous extract of cabbage and wild oat plants showed that the lowest and the highest average speed and average germination in cabbage plants were observed in aqueous extract Balngv. The study of aqueous extract Balngv as a weed - natural stretch and strengthened consider that the extract decreased the germination rate and increase the mean average germination of the wild Cabbage.Thus proved that plants monocot dicot is resistant against Balngv allelopathic effect. We can therefore extract natural herbicide resistant weeds Balngv a particular dicotyledon used.