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Studies on Biology, Ecology and Management of Wild Onion in Chickpea
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The current studies revealed the infestation of wild §onion in North West Frontier Province (NWFP) and §Punjab- Pakistan with average yield losses of 40% §annually. The first experiment under controlled §environment included dormancy breaking by using GA3, §KNO3, Thiourea, and Sodium Azide at 0 to 800 mM §exposed to 10, 20, and 30oC temperature regimes. §600mM was best concentration of KNO3 and promote §seed germination while sodium azide inhibit seed §germination at all concentrations. In the second §experiment two herbicides, isoproturon and §fenoxaprop-p-ethyl, were evaluated, each having four §doses including an untreated check in pots under §controoled environment. Herbicides reduce the dry §biomass significantly. The third experiment under §controlled environment included chickpea germplasm §including 12 chickpea germplasm with two herbicides §pendimethalin and fenoxaprop-p-ethyl. KC-98 and KK-1 §found tolerant to herbicides.In the field experiment §herbicides and herbicides doses were tested. pre §emergence herbicides with 1.5X dose found effective §with a signinificant increase of chickpea grain §yield .
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