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D Manea - One of the best experts on this subject based on the ideXlab platform.
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controlling Convolvulus arvensis l in grain maize and winter wheat in banat romania
Research Journal of Agricultural Science, 2011Co-Authors: Claudia Delia Culhavi, D ManeaAbstract:In this paper we show the efficacy of controlling the weed species Convolvulus arvensis L., popularly called field bindweed, in grain maize and winter wheat, using a diversified range of post- emergent herbicides. The scientific research starts with a description of the general aspects of weed control in grain maize and winter wheat in general, and of Convolvulus arvensis L., in particular, a species considered a weed problem for crops. In our research, we have tested 7 herbicides controlling weeds in grain maize and winter wheat in general, and Convolvulus arvensis L., in particular. As a result of our research, w have obtained results concerning the total number of weeds/m 2 in the control variant in grain maize and winter wheat and the share percentage, as well as results concerning grain maize yield in q/ha in both control and treated variants. We have noted 15 weed species in grain maize and winter wheat, i.e. 238 weeds/m 2 in grain maize and 62 weeds/m 2 in winter wheat, while field bindweed was represented by 23.3 plants/m 2 and 13.11 plants/m 2 , respectively. We can see that, as far as exclusive control of the species Convolvulus arvensis L. is concerned, the best results were in the variants treated with Buctril Universal (0.8-1 l/ha), with a control percentage of 85.97%, while the highest yields in grain maize were recorded in the variants treated with Buctril Universal (0.8-1 l/ha), with yields of de 81.48 q/ha.
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controlling the perennial species Convolvulus arvensis l a problem weed in winter wheat
Research Journal of Agricultural Science, 2010Co-Authors: Claudia Delia Culhavi, D ManeaAbstract:Research presented in this paper aimed at establishing the most efficient modern ways of chemical control of the problem-species Convolvulus arvensis L. in winter wheat, with direct effects on yield results. Research was carried out during the agricultural year 2008-2009 on the experimental field of the Plant Protection Department of the Didactic Station in Timisoara, on a cambic chernozem, where we tested 11 post- emergent herbicides. The winter wheat cultivar we used in our trial was Lovrin 50, developed at the S.C.A. Lovrin. In the control variant, we inventoried 77.00 weeds/m 2 (belonging to 11 distinct species), of which Convolvulus arvensis L. represented 13.83 plants/m 2 with a share of 17.80%. The most efficient decrease of the number of field bindweed shoots was ensured by the herbicide Buctril Universal, with a control rate of 95.87%. There was also weed control above 90% in the variants treated with Aril Super, Banvel 480 S, and Dialen Super 464 SL. As a result of the studies and research carried out, we could see that the herbicide Tomigan 250 EC had no visible effect in controlling field bindweed, which makes us not recommend it for the control of fields weeded by this plant. In all treated variants, 30 days after application and particularly 60 days after application, the plants of Convolvulus arvensis L. tended to regenerate by sprouting new shoots that could not be a real challenge for the almost mature wheat plants. The highest wheat yields obtained in 2009 were in the variants treated with Aril Super (1 l/ha), Banvel 480 S (1 l/ha), and Dialen Super 464 SL (0.9 l/ha), with yields of 53.01 q/ha, 52.43 q/ha and 51.08 q/ha, respectively, with very significant positive differences compared to the average of the field. All the tested herbicides were very selective for the winter wheat cultivar we cultivated (Lovrin 50), with no visible symptoms of phyto-toxicity.
Claudia Delia Culhavi - One of the best experts on this subject based on the ideXlab platform.
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controlling Convolvulus arvensis l in grain maize and winter wheat in banat romania
Research Journal of Agricultural Science, 2011Co-Authors: Claudia Delia Culhavi, D ManeaAbstract:In this paper we show the efficacy of controlling the weed species Convolvulus arvensis L., popularly called field bindweed, in grain maize and winter wheat, using a diversified range of post- emergent herbicides. The scientific research starts with a description of the general aspects of weed control in grain maize and winter wheat in general, and of Convolvulus arvensis L., in particular, a species considered a weed problem for crops. In our research, we have tested 7 herbicides controlling weeds in grain maize and winter wheat in general, and Convolvulus arvensis L., in particular. As a result of our research, w have obtained results concerning the total number of weeds/m 2 in the control variant in grain maize and winter wheat and the share percentage, as well as results concerning grain maize yield in q/ha in both control and treated variants. We have noted 15 weed species in grain maize and winter wheat, i.e. 238 weeds/m 2 in grain maize and 62 weeds/m 2 in winter wheat, while field bindweed was represented by 23.3 plants/m 2 and 13.11 plants/m 2 , respectively. We can see that, as far as exclusive control of the species Convolvulus arvensis L. is concerned, the best results were in the variants treated with Buctril Universal (0.8-1 l/ha), with a control percentage of 85.97%, while the highest yields in grain maize were recorded in the variants treated with Buctril Universal (0.8-1 l/ha), with yields of de 81.48 q/ha.
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controlling the perennial species Convolvulus arvensis l a problem weed in winter wheat
Research Journal of Agricultural Science, 2010Co-Authors: Claudia Delia Culhavi, D ManeaAbstract:Research presented in this paper aimed at establishing the most efficient modern ways of chemical control of the problem-species Convolvulus arvensis L. in winter wheat, with direct effects on yield results. Research was carried out during the agricultural year 2008-2009 on the experimental field of the Plant Protection Department of the Didactic Station in Timisoara, on a cambic chernozem, where we tested 11 post- emergent herbicides. The winter wheat cultivar we used in our trial was Lovrin 50, developed at the S.C.A. Lovrin. In the control variant, we inventoried 77.00 weeds/m 2 (belonging to 11 distinct species), of which Convolvulus arvensis L. represented 13.83 plants/m 2 with a share of 17.80%. The most efficient decrease of the number of field bindweed shoots was ensured by the herbicide Buctril Universal, with a control rate of 95.87%. There was also weed control above 90% in the variants treated with Aril Super, Banvel 480 S, and Dialen Super 464 SL. As a result of the studies and research carried out, we could see that the herbicide Tomigan 250 EC had no visible effect in controlling field bindweed, which makes us not recommend it for the control of fields weeded by this plant. In all treated variants, 30 days after application and particularly 60 days after application, the plants of Convolvulus arvensis L. tended to regenerate by sprouting new shoots that could not be a real challenge for the almost mature wheat plants. The highest wheat yields obtained in 2009 were in the variants treated with Aril Super (1 l/ha), Banvel 480 S (1 l/ha), and Dialen Super 464 SL (0.9 l/ha), with yields of 53.01 q/ha, 52.43 q/ha and 51.08 q/ha, respectively, with very significant positive differences compared to the average of the field. All the tested herbicides were very selective for the winter wheat cultivar we cultivated (Lovrin 50), with no visible symptoms of phyto-toxicity.
M Kohi - One of the best experts on this subject based on the ideXlab platform.
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cytotoxic effect of Convolvulus arvensis extracts on human cancerous cell line
Research in Pharmaceutical Sciences, 2008Co-Authors: Hojjat Sadeghialiabadi, N Ghasemi, M KohiAbstract:It has been reported that several members of Convolvulaceae family such as Convolvulus arvensis possess cytotoxic activity on some tumor cell lines. Proteoglycan mixture, the water extract of C. arvensis with high molecular weight, has potent anti-angiogenesis and stimulating effects. In this study, arial parts of C. arvensis were collected and identified, and the cytotoxic effects of chloroform, ethylacetate and hydroalcoholic extracts on human tumor cell line (Hela) were determined. Different concentrations of the extracts were added to the cultured cells and incubated for 72 h. Cell survival was evaluated using MTT assay. The chloroform extract of C. arvensis at tested concentrations showed a comparable cytotoxic effect to taxol against Hela cell (15 vs. 12 µg/ml). In conclusion, the higher cytotoxic activity seen with chloroform extract may be related to the presence of lipophilic glycosides as non-polar compounds extracted by chloroform.
Silvia Rodrigueznavarro - One of the best experts on this subject based on the ideXlab platform.
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valuation of quality parameters for rearing aceria malherbae nuzzaci acari eriophyidae a biological control agent of field bindweed Convolvulus arvensis l
International Journal of Acarology, 2011Co-Authors: Silvia Rodrigueznavarro, Hector Rodriguez Morell, Juan Aleman A Martinez, Antonio Floresmacias, Jose Gustavo TorresmartinezAbstract:ABSTRACT Field bindweed (Convolvulus arvensis) is one of the 10 most problematic weeds in the world. Its control using chemical herbicides is not completely effective. Aceria malherbae is a mite used successfully as a biological agent to control field bindweed. Effective implementation of this kind of biocontrol requires high-quality production of these mites. The purpose of this study was to investigate different quality indicators for effectively rearing A. malherbae under greenhouse conditions. The indicators considered were number of gallmites (adults, immature stages, and eggs), number of developed stems per plant, and number of galls per stem. We used 25 plots with 10 pots per plot, testing a sub-sample from one-fourth of these pots. The Shewhart chart or process–behavior chart was applied to determine basic statistics (means and range) and acceptance and rejection limits. Rejection limits for inferior plots were set at 3.9 developed stems per plant, 5.2 galls per stem, 7.4 adults, 32 nymphs, and 11...
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evaluation of infesting field bindweed Convolvulus arvensis l with aceria malherbae nuzzaci acari eriophyidae under glasshouse conditions
International Journal of Acarology, 2008Co-Authors: Silvia Rodrigueznavarro, Antonio Floresmacias, Gustavo TorresmartinezAbstract:Abstract A study was conducted under glasshouse conditions to determine the most effective method of infesting Convolvulus arvensis L. with the mite Aceria malherbae (Acari: Eriophyidae). Seven treatments were included with nine replications: 50, 150 and 200 individuals manually transferred; stems infested with 3, 5 and 7 galls and a non-treated control. A number of infested stems and galls per plant were evaluated. One hundred and fifty individuals manually transferred was the best treatment for both variables. A high correlation (R2 = 0.969) between infested stems and galls per plant was found.
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biological control of field bindweed Convolvulus arvensis l using aceria malherbae acari eriophyidae in mexico
International Journal of Acarology, 2004Co-Authors: Silvia Rodrigueznavarro, Gustavo Torresmartinez, Javier OlivaresorozcoAbstract:Abstract Field bindweed (Convolvulus arvensis L.) is a serious weed and infests several crops in Mexico. At present, it is controlled by the use of herbicides. An experiment found Aceria malherbae Nuzzaci (Acari: Eriophyidae) a potential good candidate for biological control of this weed in Mexico.
Hafiz M N Iqbal - One of the best experts on this subject based on the ideXlab platform.
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catalytic potential of bio synthesized silver nanoparticles using Convolvulus arvensis extract for the degradation of environmental pollutants
Journal of Photochemistry and Photobiology B-biology, 2018Co-Authors: Tahir Rasheed, Muhammad Bilal, Faran Nabeel, Muhammad Khalid, Hafiz M N IqbalAbstract:Abstract Herein, we reported a facile, green and environmental friendlier biosynthesis of silver nanoparticles using the Convolvulus arvensis extract. The influences of various physicochemical factors such as the concentration of the plant extract, reaction time, and different pH levels were investigated by UV–Vis spectroscopy. The UV–Visible absorption spectrum of biogenic silver nanoparticles at λmax around ~400 nm suggested the biosynthesis of silver nanoparticles. Fourier transform infrared spectroscopy was employed to confirm the chemical transformation and role of various phyto-reductants in the conversion of Ag+ to Ag0. The surface morphology, topography, and elemental composition were analyzed by scanning electron microscopy, transmission electron microscopy, and energy dispersive X-ray spectroscopy, respectively. X-ray diffraction corroborated the face-centered cubic crystalline structure. The dynamic light scattering and zeta potential demonstrate the size distribution (90.9 nm) and surface charge (−18.5). Finally, the newly developed C. arvensis based silver nanoparticles were exploited as a catalyst for the catalytic reduction of azo dyes in the presence of NaBH4 as a reducing agent, and reducing the activity of C. arvensis based silver nanoparticles was evaluated by a decrease in optical density using UV–Vis spectrophotometer. The nanoparticles developed herein displayed potential efficiency for the degradation of all the tested dye pollutants. Conclusively, plant-based synthesis of nanoparticles provides an environmentally-responsive option for the reduction of highly environmental-polluted organic compounds including toxic azo dyes as compared to chemical and physical methods.