Faribi Meighani; mohammadreza karaminejad
Abstract
This study was conducted in the research field of Iranian Research Institute of Plant Protection in Karaj as strip split plots with three replications. The first factor: tillage and no-tillage, and the second factor: herbicide: Glyphosate 6 L/ha, 2,4-D + MCPA 2L/ha, Glyphosate + 2,4-D + MCPA (6 + 2 L/ha), ...
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This study was conducted in the research field of Iranian Research Institute of Plant Protection in Karaj as strip split plots with three replications. The first factor: tillage and no-tillage, and the second factor: herbicide: Glyphosate 6 L/ha, 2,4-D + MCPA 2L/ha, Glyphosate + 2,4-D + MCPA (6 + 2 L/ha), Glyphosate 3 L/ha, 2,4-D + MCPA 1 L/ha, Glyphosate + 2,4-D + MCPA (3 + 1 L/ha), and control without herbicide. The number of field bindweed shoot was determined 15, 30 and 45 days after spraying and field bindweed biomass was determined 45 days after spraying. In the second year, sugarbeet was planted and the effect of herbicides was determined on sugarbeet yield. The best treatment for field bindweed density decrease was Glyphosate + 2,4-D + MCPA (6 + 2 L/ha). The same treatment and its split dose as suitable treatments caused the most decrease in field bindweed biomass. There was no significant difference between till and no-till treatments in view of their effect on field bindweed density and biomass. Under effect of no-till treatment, field bindweed biomass showed more decrease and under effect of no-till treatment, sugarbeet yield showed more increase. Overall, The best treatment for field bindweed density and biomass was Glyphosate + 2,4-D + MCPA (6 + 2 L/ha) and after that its split dose.
Faribi Meighani; Ajang Jahedi; Seyed Mohammad Mirvakili; Parviz Shimi; Mohammad Ali Baghestani
Abstract
In order to study of the efficacy of herbicides in weed control of new seeded alfalfa, an experiment was conducted in Hamedan and Yazd cities, Iran during 2009-2010. The treatments were Bentazone (Bazagran) (SL 48%) two, three and four L.ha-1, 2,4-DB (Butress) (EC 42.3%) 2.5, 2.8, 3.1 and 3.5 L.ha-1, ...
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In order to study of the efficacy of herbicides in weed control of new seeded alfalfa, an experiment was conducted in Hamedan and Yazd cities, Iran during 2009-2010. The treatments were Bentazone (Bazagran) (SL 48%) two, three and four L.ha-1, 2,4-DB (Butress) (EC 42.3%) 2.5, 2.8, 3.1 and 3.5 L.ha-1, Imazethapyr (Pursuit) (SL 10%) 0.4, 0.7 and one L/ha and without herbicide control treatment. The herbicides effect on alfalfa biomass and the biomass and density of weeds was studied during three cuttings. In Yazd, 2,4-DB 3.5 L.ha-1 was the best treartment for controlling weeds and increasing alfalfa biomass. 2,4-DB 3.5 and 2.8 L.ha-1 controled the density and biomass of Malva and Lactuca to 100 and 88 percent, respectively. In Hamedan, herbicides treatments had no phytotoxocity on alfalfa. Only Bentazone caused chlorosis in alfalfa that recovered that after one to two weeks. 2,4-DB not only was suitable in control ling broad leaves weeds, but also was successful in field bindweed control. Overall. 2,4-DB seems to be an efficient herbicide
Faribi Meighani; Seyed Mohammad Mirvakili; Mohammad Ali Baghestani
Volume 13, Issue 2 , March 2012, , Pages 61-73
Abstract
This research was undertaken to determine the comparative phenology of swallow wort (Cynanchum acutum) in pistachio orchards and investigate the possibilities of its integrated management as a randomized complete block design with 18 treatments and three replications during 2007. The treatments consisted ...
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This research was undertaken to determine the comparative phenology of swallow wort (Cynanchum acutum) in pistachio orchards and investigate the possibilities of its integrated management as a randomized complete block design with 18 treatments and three replications during 2007. The treatments consisted using Paraquat, Glyphosate, Triclopyr and removine the weed. The results indicated that swallow wort growth started from emerging at zero GDD and ends at 2848 cumulative GDD. Formation of pistachio shell was almost at the same time with the beginning of flowering and pollination of swallow wort and pistachio harvesting were taken during the middle of swallow worth fruiting. The corresponding stages for pistachio had cumulative GDD 2365. Overall, two times weed removal + Triclopyr was the best treatment for reduction of swallow worth stem number. Three times Paraquat three l/ha was the best treatment for reducing in swallow wort stem biomass (97%).
Mohammad Ali Baghestani Meibodi; Manouchehr Jam nejad; Mahdi Mainbashi Moeini; Faribi Meighani
Volume 12, Issue 2 , November 2010, , Pages 11-23
Abstract
In order to study the effect of environment temperature and GR60 concentration on seed germination and growth of Orobanche aegyptiaca and Orobanche cernua, two experiments were conducted under controlled conditions in Weed Research department of Iranian Research Institute of Plant Protection in 2008. ...
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In order to study the effect of environment temperature and GR60 concentration on seed germination and growth of Orobanche aegyptiaca and Orobanche cernua, two experiments were conducted under controlled conditions in Weed Research department of Iranian Research Institute of Plant Protection in 2008. The first experiment was established as a completely randomized design with factorial arrangement of treatments and five replications. The first factor was GR60 concentration (zero, one, two and five ppm), the second factor was broomrape species (O. aegyptiaca and O. cernua), and the third factor was temperature (10, 20 and 30?C). The second experiment was also conducted with the same statistical design and species, temperature at three levels (15, 20 and 30?C) and host plants at two levels (tomato and tobacco). Results indicated that GR60 stimulated seed germination of both broomrape species. Broomrape germination increased up to 20?C. O. cernua needed less GR60 for maximum germination compared to that of O. aegyptiaca. Stem weight of broomrape species increased by moderate increase in temperature.
Mohammad Reza Labbafi; Faribi Meighani; Hamideh Khalaj; Mohammad Ali Baghestani Meibodi; Iraj Allah dadi; Ali Mehrafarin
Volume 12, Issue 1 , May 2010, , Pages 49-57
Abstract
Equal-compartment-agar method was used for studying the effect of allelopathic interaction of wheat and some problematic weeds in wheat. This experiment was accomplished as factorial in complete randomized design with 3 replications in weed research department of Crop Protection Research Institute, Tehran, ...
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Equal-compartment-agar method was used for studying the effect of allelopathic interaction of wheat and some problematic weeds in wheat. This experiment was accomplished as factorial in complete randomized design with 3 replications in weed research department of Crop Protection Research Institute, Tehran, Iran during 2006. The treatments were Niknejad cultivar in 4 densities 0, 8, 16 and 24 seedlings in glass tube and wheat weed spices: rye, oat, field bindweed and hairy vetch. The results indicated that the length of weeds was affected by wheat exudates more than their dry weight and similarly, rootlet was affected more than hypocotyl. In general growth of monocot species was decreased by wheat more than that of dicot species. Except hypocotyl length and dry weight, the increase in wheat density added the inhibition on weeds. Weed species had significant effect only on wheat hypocoty length and dry weight. mean while, oat was shown to be the most inhibitor. Except seedling hypocotyl length and dry weight, treatment of 16 wheat seedling density, caused the increase in wheat growth and dry weight.