Main cause of crops yield reduction in the world is the presence of weeds. Plant-derived smoke solution is well known for its promotry effect on plant growth. In the present study smoke solution derived from six different weeds Asphodelus tenuifolius (Cav.), Avena sativa(L.), Galium tricornutum(Dandy). Parthenium hysterophurs(L.), Phalaris minor(Retz.) and Scandix pecten-veneris(L.) were applied to find their effect on wheat seed germination, seedling vigor and seedling mass. It was observed that all the weeds-derived smoke solution significantly increased seed germination at 12, 24 and 36h at higher dilutions (1:1000, 1:3000, 1:5000 and 1:10000). Seedling length of wheat was also increased by Asphodelus, Avena, Galium, Partheniumand Phalarisat 1:1000, 1:3000 and 1:10000 dilutions. Similar effects were observed on seedling mass of wheat and increased at different dilutions by all weeds smoke solutions. Concentrated smoke solutions significantly inhibited plant growth of wheat. It might be concluded that effect of smoke solution is concentration dependent and it increases with the increase of smoke dilutions. It is also concluded that smoke solution application is environment friendly.
