Floristics of weeds in Triticum aestivum L. fields of Tehsil Shabqadar, District Charsadda, KP, Pakistan
Akhtar Zaman, Asadullah, Lal Badshah, Zahir Muhammad, Abdul Razzaq, Ghulam Jelani, Usman Ali, Nazish Raees, Muhammad Nauman Khan
a comprehensive survey of weed flora was conducted in the wheat (Triticum aestivum L.) fields of Tehsil Shabqadar, District Charsadda during February and end of April. This preliminary survey shows that there were 32 weed species belonging to 17 families. Out of these 17 families, 1 family belongs to monocots while 16 families belong to dicots. The family with largest number of species was Asteraceae having 6 species, followed by Poaceae (5 species), Fabaceae (4 species), Amaranthaceae (2 species), Brassicaceae (2 species), Polygonaceae (2 species). Rests of the families were represented by 1 species each. Biological spectrum shows that Therophytes were the major life form class (78.1%) and Hemicryptophytes were (9.3%) Chamaephytes (6.2%) and Geophytes were (6.2%). Leaf size classification shows that Microphylls (40.6%) were the major leaf size class followed by Nanophylls (21.8%), Leptophylls (18.7%) and Mesophylls (18.7%) respectively. Life span of the reported weed taxa shows that annual weeds (23 sp, 71.85%) are more rapidly grow in single season while Perennial (7 sp, 21.87%) and Biennial (2 sp, 6.25%) required more time for growth. The most disastrous species were Avena sativa, cannabis sativa, convolvulus arvensis, Emex spinosa and Euphorbia helioscopia.