Contents

Page

Performance of Some Grass Killers Against Avena fatua and Their Effect on Yield and Yield Components of Wheat in Southern Punjab

Shuaib Kaleem, M. Ansar, M. Saeed, M. Azim Malik and M.A. K. Tareen

243

Tolerance of Wild Oats Biotypes to Different Oat Killers and Their Impact on Some Agronomic and Physiological Traits of Wheat

Imtiaz Khan, Gul Hassan and Muhammad Ishfaq Khan

249

Evaluation of Economic Threshold Level of Wild Oat (Avena fatua L.) in Wheat under Super Imposed Application of Fenoxaprop-P-Ethyl

Muhammad Sarwar Cheema and Muhammad Akhtar

257

Allelopathic Proclivities of Tree Leaf Extracts on Seed Germination and Growth of Wheat and Wild Oats

Khan Bahadar Marwat and Muhammad Azim Khan

265

Effect of Chemical Control on Weed Seed Bank Size and Composition in Corn-Barley Rotation System

Mostafa Ovaisi, Mohammad Ali Baghestani and Ebrahim Raismohammadi

271

Efficacy of Different Herbicides for Controlling Noxious Weed in Chickpea in District Karak

293

Post emergence Weed Control in Seedling Alfalfa (Medicago sativa L.) with Imazamox

299

Evaluating Clopyralid as a Broad Leaf Herbicide in Canola Fields of Iran            

Parviz Shimi, Reza Poorazar, Mohammad Jamali and Nasser Bagherani-Torshiz

307

Germination of Asphodelus tenuifolius Biotypes as Influenced by Temperature, Dormancy Breaking Chemicals and Their Concentrations

Muhammad Ishfaq Khan, Gul Hassan, Imtiaz Khan and Nazeer Hussain Shah

313

Comparative of the Efficacy of Trifloxysulfuron Sodium with Cotton Selective Herbicides Registered in Iran

H. Salimi, Mansoor Montazeri, M. Fereidoonpour and M. Akhavan

319

Weeds Related Professional Competency of Agricultural Extension Agents in NWFP, Pakistan

Muhammad Zafrullah Khan, Khalid Nawab and Muhammad Azim Khan

331

Herbicidal Potential of Aqueous Leaf Extract of Allelopathic Trees against Phalaris minor

Arshad Javaid, Sobiya Shafique and Shazia Shafique

339

Effect of Cover Crops Mulch on Weed Control in Orchards

Batool Samedani and Hamid Rahimian

347

Survey on Weed Problems in Wheat Crop in District Mardan

Khan Bahadar Marwat, Zahid Hussain, Bakhtiar Gul, Muhammad Saeed and Siraj-ud-Din

353