نتایج جستجو برای: wild species
تعداد نتایج: 685820 فیلتر نتایج به سال:
The aim of this study was to investigate and to quantify the effect of burial depth on seedling emergence of volunteer canola and wild mustard. Seeds were buried in 12 different depths (1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 30 cm) in 4 replications and seedling emergence was measured daily. Results indicated that emergence percentage of volunteer canola was around 98 % from 1 to 2.9 cm of burial...
The wild relatives are important sources of genes for some desirable traits and adaptation to environmental conditions that can be exploited to enrich the cultivated safflower gene pool. In this study, genetic relationship and finding chance of specific markers between three species of the genus Carthamus, including tinctorius, lanatus and oxyacantha were evaluated by 9 ISSR primers. The s...
to investigate the relationship between different traits, discover factors affecting this relationship and to identify components of seed yield in cultivated and wild safflower genotypes, this investigation was conducted at isfahan university of technology research farm under two different water regimes during 2008. significant differences were observed between genotypes belonged to the two spe...
in this survey 45 carnivores including 14 jackals, 23 stray dogs, 2 foxes, 2 domestic cats, 1 wild cat, 2 swine and 1 wolf were collected. on post-mortem examination, 84% carcases were infected and 13 zoonotic helminth species were recovered. dirofilaria immitis was the most commonly parasite and toxocara canis showed the highest intensity of infection. one species from swine and two helminth s...
Thirty three Gyrodactylus spp have been found on the gills and body surface of both wild and farmed freshwater fishes in Iran. Among them nine species have been identified up to the species level, which are new locality records. The identification of the others, mainly belong to endemic wild freshwater fishes, need further studies. Among the known species, Gyrodactylus derjavini (Mikhailov, 197...
the community dynamics of aquatic coleoptera(insecta)in one of the spring-stream habitats of bammo national park in fars province called cheshmeh-ye-ghanbari is studied as a pilot project and model for acquaintance with and furthering the biodiversity studies on fauna of iran. sixteen species-populations out of nineteen of this community were already identified for their taxonomy and for thei...
there are many techniques to knock out directed genes in bacteria, some of which have been described in salmonella species. in this study, a combination of soeing pcr method and the λ red disruption system were used to disrupt phop gene in wild type and standard strains of salmonella typhimurium. three standards pcr and one fusion pcr reactions were performed to construct a linear dna including...
abstract the aim of this study is to determine the level of people’s awareness and willingness towards the protection of persian wild ass (equus hemionus onager), to recommend solutions that can improve management and conservation of this species. in this descriptive-analytical study, 660 people from fars province were chosen via the clustered method. a questionnaire comprising items about the ...
to evaluate the role of effective factors on competition of two wheat cultivars against two species of narrow leaf and broad leaf weeds this study was conducted as two separated experiments based on a randomized complete block design with 3 replications at agricultural faculty of bu-ali sina university, in 2008-2009. in both experiments, alvand and sayson cultivars were planted with densities o...
a greenhouse study was conducted to investigate the effects of nitrogen (n) on wild barley (hordeum spontaneum koch) interference with winter wheat (triticum aestivum var. pishtaz) by an additive series experiment. the experiment was conducted in a split plot design with 3 replications. wheat plant height losses were on average 30, 10, and 10% in a wild barley density of 16 plants per pot with ...
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