The objective of this research was to evaluate the physicochemical characteristics Amaranthus spp. commonly happening in Brazil, besides defining efficiency different extraction processes phenolic compounds and antioxidant activity. Five species genus (A. spinosus, A. viridis, retroflexus, hybridus var. paniculatus e deflexus) were evaluated regard their such as vitamin C, soluble solids, pH, m...

Endofitne gljive žive unutar biljaka ne uzrokujući očite simptome bolesti. Korovi koji rastu u blizini poljoprivrednih polja mogu poslužiti kao alternativni domaćin ovih gljiva. Izolirali smo endofitne iz 6 vrsta korova, uobičajenih za istočnu Hrvatsku te bez očitih simptoma bolesti: Abutilon theophrasti, Amaranthus retroflexus, Ambrosia arthemisiifolia, Chenopodium album, Sorghum halepense i X...

This study aimed to compare weed flora in conventionally and organically grown medicinal aromatic plants (MAPs): basil, pot marigold, dill, peppermint; terms of composition abundance. A total 28 species (25 15 conventional organic crops, respectively) were identified.The presence abundance certain affected by MAP farming system. Higher diversity weediness, lower floristic similarity found crops...

The density of eggs and nymphs of Bemisia tabaci (Gennadius) biotype B and the percent parasitism of the nymphs were measured from specimens collected on nine species of weeds, commonly found in west central Florida during the spring and summer of 2012 and 2013. The weeds were direct seeded in 2012 and grown as transplants in 2013 for Randomized Complete Block design experiments. The leaf area ...

during autumn and summer 2010 observed species from amaranthus genus were studied in segetal and ruderal environments of hamedan city. in this research, 100 plats randomly were selected and totally 6 species from amaranthus were identified as neophyte wild elements: a. retroflexus l. a. lividus l., a. chlorostachys willd, a. albus l., a. viridus l. and a. blitoides s. watson. dispersal of menti...

carbon dioxide is the most important resource for crop growth. in order to investigate the effect of elevated co2 concentration on morphological and physiological characteristics of sesame (sesamum indicum l.) and amaranthus (amaranthus retroflexus l.) an experiment was conducted in greenhouse conditions. the experiment was factorial based on randomized complete block design with six treatments...

Allelopathy can be regarded as a component of biological control in which plants are used to reduce the vigour and development of other plants. Allelopathy refers to the direct or indirect chemical effects of one plant on the germination, growth, or development of neighbouring plants. The allelopathic effects of leaf extracts of Thymus vulgaris, Lavadula sp, Rosmarinus officinalis and Eucalyptu...

in order to investigate the possibility of reducing herbicide usage in combination with plant density and planting pattern, a field experiment was designed in chenaran, khorasan razavi, on 2010. the experiment was split plot treatments based on rcbd with three replications in factorial arragement. the treatments included of 3 level of plant density (100000, 120000 and 140000 plants ha-1) and 2 ...

in order to evaluate the effects of xanthium strumarium or amaranthus retroflexus competition under unsprayed and sprayed (half the recommended rate of imazethapyr) on canopy architecture of weed and soybean, field experiment was conducted at the research farm of university of tehran, during the growing season of 2007 and 2008. the experimental design was factorial based on randomized complete ...