Amaranthus retroflexus L. and Chenopodium album are noxious weeds that have a cosmopolitan distribution. These species successfully invade adapted to wide variety of diverse climates. In this paper, we evaluated the morphology biochemistry 16 populations A. 17 C. Seeds from collected Spain, France, Iran were grown together at experimental field agriculture research University Mohaghegh Ardabili...

allelopathic plants, because of reduction in herbicide uses, are important in weed management. the allelopathic effects of sage salvia officinalis and white wormwood artemisia sieberi water extract were evaluated on germination and seedling growth of redroot pigweed amaranthus retroflexus at concentration of 0, 5, 10, 15, and 20% in controlled conditions. anova revealed that the extract concent...

Background Amaranthus hybridus, a common agricultural weed in Brazil, has been associated with complications the management of major crops. Recently, A. hybridus biotypes suspected resistance to herbicide glyphosate have observed state Paraná. Objective To characterize glyphosate-resistant biotypes. Methods Three independent experiments were conducted evaluate four hybridus. Twelve doses applie...

Knowing precise location and having accurate information about weed species is a prerequisite for developing an effective site-specific management (SSWM) system. Due to the effectiveness of deep learning techniques vision-based tasks such as image classification object detection, its use discriminating between weeds crops gaining acceptance among agricultural research community. However, limite...

The rate o f photosynthesis in intact leaves o f a triazine-resistant biotype o f Amaranthus retroflexus was about 15% lower than that o f a triazine-susceptible biotype. Differences in photosyn­ thesis between resistant and susceptible biotypes o f Polygonum lapathifolium, Poa annua and Solanum nigrum were not significant, and absent in Chenopodium album and Stellaria media. The results are br...

Resource pulses are a common event in agro-ecosystems. A pot experiment was conducted to assess the effects of nitrogen (N) pulses and competition on the growth of an invasive weed, Amaranthus retroflexus, and a native crop, Glycine max. A. retroflexus and G. max were planted in pure culture with two individuals of one species in each pot and in mixed culture with one A. retroflexus and one G. ...

BACKGROUND Pollinosis from Amaranthus retroflexus pollen is a common cause of respiratory allergy in Iran with a high positive rate (68.8%) among Iranian allergic patients. The aim of the present study was to evaluate the allergenicity of the A. retroflexus pollen profilin. METHODS Using sera from twelve patients allergic to A. retroflexus pollen, IgE-binding proteins from the A. retroflexus ...