نتایج جستجو برای: weed infestation

تعداد نتایج: 20719  

Journal: :International Journal of Enviornment and Climate Change 2023

Wheat (Triticum aestivum) is a globally significant crop and staple food for millions of people. Weed infestation one the major constraints affecting wheat productivity worldwide. The purpose this study was to assess efficiency Carfentrazone ethyl 5% + Clodinafop propargyl 15% DF as post-emergence herbicide against predominant weeds in crops. constraint productivity. conducted using Randomized ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده زیست شناسی 1388

abstract chickpea is weak in competition of weeds that damages to it at between 40 t0 60 percent. kermanshah province is one of the most important region for chickpea fields in iran. for these reosons, weed management is necessary in this crop. in order to evaluate of herbicides and stubble control on broad leave weeds control in chickpea. experiment was conducted in agricultural research stat...

Journal: :Journal of economic entomology 2005
Isaac O Oyediran Bruce E Hibbard Thomas L Clark

Three greenhouse experiments were conducted to evaluate western corn rootworm, Diabrotica virgifera virgifera LeConte, beetle emergence from individual pots containing glyphosate-tolerant transgenic corn, Zea mays L., expressing the Cry3Bbl endotoxin from the soil bacterium Bacillus thuringiensis Berliner (MON863), nontransgenic glyphosate-tolerant isoline corn, grassy weeds (giant foxtail, Set...

Journal: :Estuarine Coastal and Shelf Science 2021

Weed infestation is a critical management issue for maintaining the natural values of coastal wetlands across world. Widespread use herbicides to control weeds has resulted in environmental issues past and led search more methods such as using saline water. This study investigates options restore flow regimes between freshwater seawater by removing bund which was built grow ponded pasture. The ...

Journal: :Journal of Pesticide Science 2022

The inhibitory effect of propiconazole on strigolactone (SL) production and Striga hermonthica emergence were evaluated using rice plants. A significant reduction in SL levels was detected root exudates after treated with different doses propiconazole. Propiconazole induced second tiller bud outgrowth seedlings. In accordance the results 4-deoxyorobanchol exudates, propiconazole-treated attenua...

2006
A. Rahman F. A. Talukder

Experiments were conducted to study the bioefficacies of different plant/weed derivatives that affect the development of the pulse beetle, Callosobruchus maculates F. (Coleoptera: Bruchidae) fed on black gram, Vigna mungo, seeds. Plant extracts, powder, ash and oil from nishinda (Vitex negundo L.), eucalyptus (Eucalyptus globules Labill.), bankalmi (Ipomoea sepiaria K.), neem (Azadirachta indic...

2009
Rasha A.M.A. Ali Adil A. El-Hussein K. I. Mohamed A.G.T. Babiker

Striga hermonthica is a widely spread root parasitic weed on cereals in Sub Saharan Africa including Sudan. The most important hosts comprise sorghum, millet and sugar cane. Host specificity and existence of two distinct strains on sorghum and millet were previously reported. Reports on a third strain specific to maize are controversial. The present study was undertaken to investigate anatomica...

Journal: :Journal of environmental biology 2009
P Ishwara Bhat S S Cristopher B B Hosetti

The avifaunal diversity and density in Anekere wetland, Karkala, Udupi district, Karnataka, India, was studied for a period of three years. Anekere pond inhabits several local and migratory bird species. Reduction in water retention in this pond in summer, weed infestation, variations in food availability in different seasons and threat of predation on the breeding activity of birds affected th...

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