Weed Flora in Cereal crops of district Bannu
In the present research work (2016-2018), there was reported 100 genera having 114 species distributed among 37 families. Out of which 5 were of monoct families (with 21 genera and 23 spp.) and 32 families of dicot (with 79 genera & 91 spp.). According to percentage data, it was reported that the weed members of family Poaceae was the greatest in cereal crops having 16.666% spp, while the family Asteraceae was next one with 14.912% weeds spp. Family Boraginaceae and Papilionaceae gaining third position having 6.140% weeds spp. Amaranthaceae, Brassicaceae and Solanaceae having 5.263%, Euphorbiaceae (4.385%), Polygonaceae (3.508%), Zygophyllaceae (2.631%), while the remaining families have less then 2.00 % weeds species. It was reported that Cirsium arvense, Convolvulus arvensis, Conyza bonariensis, Cynodon dactylon, Cyperus rotundus, Parthenium hysterophorus and Sonchus asper were the common weed found in all the three important cereal crops i.e wheat, maize and rice.