نتایج جستجو برای: stratification
تعداد نتایج: 30687 فیلتر نتایج به سال:
la sociolinguistique est la partie de la linguistique ayant pour objet l’étude du langage sous son aspectsocioculturel. william labov est considéré dans la tradition anglo-saxonne, comme le fondateur de la sociolinguistique modern. c’est lui qui, en 1966, publie “the social stratification of english in new york city” ( la stratification social de l’anglais à new york). la recherche sociolingu...
dormancy breaking of field maple (acer campestre l.) seed, by gibberllic acid (ga3) at 0, 250, 500 and 1000 ppm in 24 and 48 hours and stratification treatments in moist sand under warm (18-20 °c) and cold (2-4°c) conditions were investigated. effects of ga3 and stratification and their interaction on germination percent (gp) and germination speed (gs) were significant. the highest gp occurred ...
DOR: 98.1000/2383-1251.1397.5.87.9.1.1578.1610 Extended abstract Introduction: Drought stress is one of the major problems in sugar beet production in Iran, and is the most important limiting factor for germination and establishment of sugar beet in the early stages of growth. Seed priming with chemical, nutrient elements or pre-chilling techniques are the most effective methods to impro...
background: the aim of this study was that the past five years data were collected to analyze the situation of malaria and health facilities in this area for better understanding malaria problem and to find solutions. methods: in this retrospective study data of the last 5 years were obtained from health center of bandar abbas, published papers and reports, weather forecasting organization of t...
introduction: domestic animals are invaluable resources to study the molecular architecture of complex traits. although the mapping of quantitative trait loci (qtl) underlying economically important traits in domestic animals has achieved remarkable results in recent decades, not all of the genetic variation in the complex traits has been captured due to the low density of markers used in qtl m...
This research was carried out with the aim of dormancy breakage and seed germination improvement in mature and immature seeds of T. rubra subsp. caucasica form angulata. The seeds were collected from middle altitude (500 a.s.l.) forests of Chamestan, north of Iran. Mature and immature seeds with pericarp were treated as 1) cold stratification (without pretreatment), 2) imbibed with NaOH (30%)+c...
Extended Abstract Introduction: Galbanum is one of the most important native medicinal plants in Iran, and nowadays the use of its products and derivatives has become widespread in various industries. Thus, the excessive harvest of this species within its natural habitats has increased. Therefore, the species is enlisted as prone to extinction. Due to the lack of information about germination ...
The dormancy characteristics and optimum conditions for seed germination of Alstroemeria ligtu had not been explained. In vitro and in vivo alstroemeria (A. ligtu hybrid) seed germination tests were conducted in a Randomized Completely Design at two different treatments (gibberellic acid (GA3) 0, 100, 200 and 400 mg/l with and without stratification in 5±1oC) in four replications. Seeds were pl...
Extended Abstract Introduction: Seeds are a good option for propagation and protection of medicinal plants. Although Seed dormancy is an adaptive strategy for wild medicinal plants, but it is considered as an undesirable trait in domestication and cultivation of them, need to be solved. Echinophora platyloba seed has dormancy despite its remarkable medicinal properties. Materials and Methods:...
propose: the stratification of iranian knowledge and information science academic member in viewpoint of presence and effectiveness and scientific and professional performance are the main aims of this article. methodology: in this applied research, descriptive survey and webometrics methods were implemented. the research population included the iranian knowledge and information science academi...
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