نتایج جستجو برای: germination percent
تعداد نتایج: 120003 فیلتر نتایج به سال:
laboratory studies were conducted to compare the relative fitness of clodinafop-propargyl herbicide resistant lolium rigidum accessions with their clodinafop-propargyl susceptible counterparts in 2014. factors evaluated were lolium populations at constant salinity stress (0, 5, 10, 15, 20 and 25 ds cm2) and water stress (0, -3, -6, -9, -12 and -15 bar). the maximum germination in salinity stres...
The effect of various concentrations of drought and salinity solutions on germination of two species known as Agropyron elongatum and Agropyron desertrum were investigated according to factorial design. This investigation contains three repetitions, nine drought levels (0,2,4,6,8,10,12,14,16), and seven salinity levels (0,2,4,8,16,33,64). 50 seeds of any species were cultivated in Petri dishes ...
abstract there is a world-wide effort to reduce the amount of chemicals used in crop production by introducing modern biological and ecological methods. one possible alternative is allelopathy. a laboratory trial was carried out to investigate of alleopathic potential of angelica . in this study the effect of different concentrations of aqueous extract of angelica herb was investigated on seed ...
in order to study the effect of intensity and exposure duration magnetic field on wheat (triticum aestivum l.) seed germination an experiment was conducted in laboratory of ferdowsi university of mashhad, iran. the experiment was including 11 treatments as three level of magnetic field intensities (pretreatment of seeds with 50, 100 and 150 mt magnetic field) and three exposure durations (10, 2...
DOR: 98.1000/2383-1251.1398.6.95.11.1.1578.41 Extended Abstract Introduction: White Astragalus (Astragalus gossypinus Fisherr.) is one of the valuable plants for producing gum, which is of critical importance in soil conservation and the economy of the country. This plant is propagated by seed; its seeds are in the natural state of dormancy. Therefore, recognizing the factors affecting dorm...
In order to study the salt tolerance of three species, Coreopsis grandiflora, Celosia cristata and Matthiola incana in germination stage, an experiment was carried out based on a completely randomized design with three replications in Hormozgan University laboratory in 2015. Salinity levels, including 3, 6, 9, and 12 dS/m were applied by dilution seawater and distilled water used as a control. ...
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...
in this investigation, the effect of different treatments on breaking of seed dormancy of almond species and peach seeds include prunus scoparia spach, p. haussknechtii bornm, p. communis l. and p. persica l. was studied to determine their seed germination percentages. first, mature seeds, without endocarp were treated with two percent tmtd® (tetramethylthiuram disulphide) fungicide solution fo...
almolookhiyeh (corchorus olitorius l.) known in the world as a valuable medicinal plant that was produced for the first time in iran in 2011. this study was aimed to quantify germination response of almolookhiyeh to temperature. for this purpose, seeds were exposed to different constant temperatures (10 ,15, 20, 25, 30, 35, 40, 45 and 50°c) in seed research lab, gorgan university of agricultura...
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