in order to study the effect of soil nitrogen content and water hardness on glyphosate efficacy on common lambsquarter (chenopodium album l.) and redroot pigweed (amaranthus retroflexus l.) control, an experiment was carried out as a completely randomized design in a factorial arrangement with three replications. experimental treatments were included soil nitrogen content (18, 50, 90, 200 and 3...

in order to examine the multi-species weed competition in corn field an experiment as an interval mapping was carried out at the agricultural research field of ferdowsi university of mashhad during growing season 2009-2010. at 3-4 leafy stages of corn, 20 non-destructive quadrates determine and the density of weeds was counted separately. at the same time, 20 destructive quadrates determine and...

Allelopathic effect of apricot (Prunus armeniaca L.) root on some crops and weeds was investigated in two independent experiments. First, the effect of concentrations aqueous extract of apricot root (AAR) was assayed on the seed germination of Cicer arietinum L., Phaseolus vulgaris L., Triticum aestivum L., Zea mays L., Amaranthus retroflexus L., Secale cereal L., and Avena ludoviciana Durieu. ...

Red lettuce (Lactuca sativa L) is a seasonal plant and belongs to the Asteracea family, this often used as staple food that contains various vitamins minerals. The research was carried out from November 2021 January 2022 in experimental garden of Faculty Agriculture, Slamet Riyadi University, Surakarta. purpose study determine response red goat manure fertilizer. Completely randomized design (C...

A two year field experiment was carried out to evaluate the effects of municipal waste compost (C), composted cattle manure (M), and nitrogen (N) on growth and composition of weeds in a corn field in Shiraz using a split-split plot design with 3 replicates. Visual inspection of the plots showed that the manure treatments neither introduced new weed species nor increased weed density more than t...

this experiment was set to study the allelopatic effect of aqueous and alcoholic extracts of artemisia, coriander, eucalyptus and cumin on growth of red root pigweed and lambsquarters weeds at laboratory and field in the university of tehran (karaj-iran) in 2008. the herbal plant samples were ground and powdered for extraction preparation, and were mixed with distilled water in a beaker. the ex...

as regards the kind of use and production of biomass, lettuce benefits from a potential of acting as a bioreactor in producing recombinant proteins as well as edible vaccines. for the propose, one needs to optimize tissue culture and gene transformation in lactuca sativa. seeds of two cultivars tn-96-39 and tn-96-41 were disinfected in a solution of 2.5% sodium hypochlorite containing 0.1% twee...

Development and activity of plant roots exhibit high adaptive variability. Although it is well-documented, that physicochemical soil properties can strongly influence root morphology and root exudation, particularly under field conditions, a comparative assessment is complicated by the impact of additional factors, such as climate and cropping history. To overcome these limitations, in this stu...

Abstract: This research is an experimental research, which aims to determine the effect of variation dosage in organic pineapple liquid waste fertilizer, on growth and productivity red lettuce (Lactuca Sativa L) its potential as learning resources biology learning. uses a Completely Randomized Design with 1 control 3 treatment combinations 5 repetitions. was conducted for 30 days. The parameter...