in the present study, a field study was performed on some herbaceous plants growing in thesoutheast of ahvaz, where some metal producing industries are active. the aim of this studywas to investigate and compare manganese (mn) and zinc (zn) accumulation in seven dominantherbaceous plants in this area. plant samples were collected randomly. associated soils weresampled from the same sites next t...

there are many methods for weed management one of them is putting allelopathic and cover crop in weed management programs. in order to study the effect of sowing time (delayed sowing, synchronic sowing) and wheat cultivars (shiraz, roshan, tabasi, niknejad) on allelopathic interaction of wheat and weed species (secale cereale l., avena ludoviciana l.: monocotyledon, convolvulus arvensis l. and ...

After Albert Einstein, Charles Darwin (1809–1882) is perhaps the scientist best known. Several biographies have been published and many essays have been written on both men. Indeed, Darwin wrote his own autobiography, for his children, and many of the thousands of letters he sent and received throughout his life have been gathered. All this information has become readily accessible thanks to se...

Sunflower is the most important oil crop in Republic of Croatia. In last two decades, it has been grown on average 33,506 ha with a grain yield 2.66 t/ha. Weeds represent one causes biotic stress, and their action reflected competition for nutrients, water, light space. The weed flora sunflower crops Croatia extremely diverse, we will often meet: Polygonum persicaria L., lapathifolium Ambrosia ...

Abstract While weed management is often thought of as an agricultural issue, weeds are also problematic for homeowners, public space managers and utilities. In these situations, typically hand‐pulled, mechanically treated or managed via herbicides. Hand pulling mechanical treatments labour‐intensive, all control methods may have unintended off‐target impacts, necessitating new alternatives cont...

Wheat, a significant grain crop, is the second-largest crop in terms of acreage and output after rice. It farmed on around 217 million hectares worldwide, with nearly half it poor nations. Wheat member Poaceae family. Weed flora wheat includes Phalaris minor, Avena ludoviciana, Chenopodium album, Lathyrus aphaca, Vicia sativa, hirsute, Medicago hispida, Cichorium intybus, Asphodelus tenuifolius...

medicinal plant species constitute a considerable part of the flora in iran and play a major role in the composition of plant communities. therefore, it is necessary to recognize the factors leading to the establishment and distribution of vegetation. for data sampling (2012), land units were specified. the plot size was determined using minimal area method and number of plots was determined by...

İnsanların yaşamında temel besin maddelerinden biri olan şekerin, üretim kaynaklarından birisi de önemli bir endüstri bitkisi şeker pancarı (Beta vulgaris L.)’dır. Şeker pancarı, Kırşehir ilinde miktarı en fazla bitkisel üründür. Çalışmada ili Merkez, Akpınar, Boztepe, Kaman ve Mucur ilçeleri alanlarında sorun yabancı otlar bunların yaygınlıkları ile yoğunluklarının belirlenmesi amaçlanmıştır. ...

Bois noir (BN) grapevine disease is associated with ‘Candidatus Phytoplasma solani’ (CaPsol), a pathogen complex ecology including multiple insect vectors and plant hosts. A key point to improve the effectiveness of BN control strategies consists in determining epidemiological role ground-cover weeds. The present study employed multidisciplinary approach, based on application spatial (spatial a...

Amaç: Bu çalışma, Kahramanmaraş ve Adana illerinde çeşitli ilçelerde bulunan şeker pancarı tarlalarında yabancı ot türü, yoğunluğu, sıklığı genel kapsama alanını belirlemek amacıyla yapılmıştır. Ayrıca 2000-2001 yıllarından 20 yıl sonra fabrikası üretim alanları ile türleri yoğunluğunda meydana gelen değişimlerin belirlenmesi amaçlanmıştır.Yöntem Bulgular: Çalışma alanlarında görülen yoğunluğun...