نتایج جستجو برای: wild oat

تعداد نتایج: 165290  

Journal: :دانش علف های هرز ایران 0
منصور منتظری محقق م.پ گریوز استاد دانشگاه م.ح پی استاد دانشگاه c رویز استاد دانشگاه

an isolate of fusarium moniliforme, a pathogen of winter wild oat (avena ludoviciana), was obtained from tehran province, iran, in 1994. a host range test performed on wheat, barley, maize, rye, millet, crested wheatgrass, faba bean, red bean, green bean, sunflower, soybean, oilseed rape, cotton, safflower, cucumber, water melon, berseem clover, and sainfoin, resulted in no symptom induction by...

Journal: :پژوهش های زراعی ایران 0
سیدهاشم موسوی سید عطااله سیادت خلیل عالمی سعید اسکندر زند عبدالمهدی بخشنده

introduction integrated weed management is based on combination of several management methods, while reducing the rate of the use of herbicides, will result in efficient management and sustainable weed control. ability of crop tolerance and prevent weed growth are two important traits in weed competition. an appropriate and suitable cultivar, has high yield potential in the presence of weed and...

2003
Beverly R. Durgan Krishona Martinson

Introduction: Wild oat has become an invasive and economically important weedy species in most cereal growing areas of the world, including the Red River Valley of Minnesota and North Dakota. Approximately 79% of the wheat and 72% of barley acres seeded in northwestern Minnesota are infested with wild oat. In the past, wild oat has been effectively controlled with herbicides, and as a result li...

Journal: :حفاظت گیاهان 0
زند زند باغستانی باغستانی بناء کاشانی بناء کاشانی دستاران دستاران

abstract three separate greenhouse experiments were conducted in the greenhouse facilities of the iranian plant protection research institute, tehran, to study the efficacy of some accase inhibiting herbicides for control of resistant based on mechanism, resistance based on enhanced metabolism and susceptible wild oat biotypes. in each experiment, biotypes were treated separately by 17 herbicid...

Journal: :پژوهش های زراعی ایران 0
علی اصغر چیت بند رضا قربانی محمدحسن راشد محصل احمد زارع فیض آبادی مجید عباسپور

the reduction of herbicide applications is a main research priority in recent years for herbicide reducing the risk of side-effects and costs from herbicides. therefore to predicting additive, synergism or antagonism effects mesosulfuron + iodosulfuron and clodinafop-propargyl two herbicides mixture on wild oat with isobole curvatures, greenhouse experimental in completely randomized design wit...

2013
John T. O’Donovan K. Neil Harker George W. Clayton

A study was initiated in 2001at four locations in western Canada to investigate an integrated approach to managing wild oat, the region’s worst weed. The study examined the effects of combining semidwarf or tall barley cultivars with normal or twice-normal barley seeding rates in either continuous barley or a barley–canola–barley–field pea–barley rotation. Herbicides were applied at 25, 50, and...

Journal: :حفاظت گیاهان 0
آرمین آرمین زند زند باغستانی باغستانی

abstract a field experiment was conducted at plant pest and disease research institute in karaj,iran in 2005-2006 to determine the effect of low herbicide dose of clodinafop-propargyl on percentage of wild oat control, yield and economic return of wheat. the experiment included 2 wheat varieties (rooshan and niknejad (less and more competitiveness cultivar, respectively, 4 wild oat densities (0...

Journal: :حفاظت گیاهان 0
روزبه فرهودی ندا کورش نژاد عادل مدحج

in order to evaluate the allelopatic potential of wheat aquatic extracts against winter wild oat (avena ludoviciana) at germiantion and vegetative growth stage two expriments were coducted in islamic azad university, shoushtar branch at 2012. germination expriment was laid out according to completely randomized design with four replications and treatments were various concentration of wheat ext...

فرهودی, روزبه, مدحج, عادل,

In order to evaluate the allelopatic potential of sunflower alcoholic extract against winter wild oat (Avena ludoviciana) at germiantion and vegetative growth stage two expriments were coducted in Islamic Azad University, Shoushtar branch at 2012. Both expriments were laid out according to Completely Randomized Design with five replications and treatments were various concentration of sunflower...

بخشنده, عبدالمهدی, زند, اسکندر , سیادت, سیدعطاءاله, عالمی‌سعید, خلیل , موسوی, سید‌هاشم,

In order to study the tolerance mechanism of spring bread cultivars to wild oat competition, an experiment was conducted in research farm of Ramin Agricultural and Natural Resources University of Khouzestan as strip block with three replications during 2010-2011 growing season. Experimental factors were wild oat densities includ 0 (as control) and 80 plant/m2 as horizontal plots and ten wheat c...

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