Open Access Research Paper Views (288) Download (26) Weed ecology of Brassica fields of Abbottabad and adjoining areas Saadia Afzal, Dr. Habib Ahmad Int. J. Biosci.10( 2), 179-187, February 2017. DOI: http://dx.doi.org/10.12692/ijb/10.2.179-187 Key: Constancy classesLife formQuadrat analysisWeed ecology Details