نتایج جستجو برای: percentage of necrotic leaves
تعداد نتایج: 21168237 فیلتر نتایج به سال:
abstract in october 2009, in one of the alstroemeria (alatroemeria sp.) greenhouses, located in khorasan razavi province, tospovirus-like symptoms (necrosis) were observed on stems, petioles, flowers and leaves of some plants. sap extracts from these plants were mechanically inoculated to indicator plants. necrotic local lesions were observed on petunia hybrida and chenopodium quinoa. necrotic ...
the aim of the current study was to investigate the relationship among efl learners learning style preferences, use of language learning strategies, and autonomy. a total of 148 male and female learners, between the ages of 18 and 30, majoring in english literature and english translation at islamic azad university, central tehran were randomly selected. a package of three questionnaires was ad...
during 2007-2008 growing season, a total of 520 sunflower leaf samples with symptoms like vein clearing, cholorotic and necrotic local lesion, deformation and stunting which were suspected of being infected with tobacco streak virus (tsv) were collected from sunflower fields of azarbayijan-gharbi, isfahan, qom, markazi, tehran and hamedan provinces. infection with tsv in collected samples were ...
abstract the purpose of this study was to find out the effect of applying the principles of group-dynamic assessment (g-da) on learning of conditional structures in english by iranian efl learners at the intermediate level, which according to the formal educational system in iran, includes students who are in their second year of studying in high schools of koohdasht city. this study was a qua...
Powdery mildew is one of melon disease caused by ascomycetes fungus from genus Sphaerotheca and Erysiphe. Breeding considered to be the best approach control infection especially in melon. MG3 a cultivar derived ‘MG1’ x ‘Ladika’ its estimate carry out resistant gene inherited MG1. This research find percentage phenotype characters compared four commercial melons (Action 434, Glamour, MAI ladika...
one of the most important goals for increasing recognition and treatment revenue is transmitting vital data to medical care team, more quickly. nowadays, use of new technologies for transmitting data will deploy more and more daily. in this article, for transmitting electrocardiogram, first we code the signal into a suite of codes, then we will use bluetooth technology to transmit data from off...
Increased milk somatic cell counts (SCC) are used as an indicator for bovine mastitis. During mastitis, polymorphonuclear leukocytes (PMN) become the predominant cell type. Shortly after parturition, the severity of mastitis is increased and several PMN functions are downregulated. Apoptotic and necrotic processes of PMN could influence SCC and PMN functions. In this study, the percentages of a...
Phytophthora ramorum causes ramorum blight on Viburnum species, which are commonly grown as ornamentals. This study evaluated 24 different species or cultivars for susceptibility to P. ramorum. Whole plants were inoculated with an NA1 isolate of P. ramorum and placed in dew chambers at 20C (68F). After 5 days, the percentage of necrotic leaves for each plant and the percentage of necrotic area ...
بررسی ارزش غذایی تاغ و عمل آوری آن با سود و آهک در مراحل مختلف رشدبا استفاده از روش کیسه های نایلونی
abstract this study is carried out to determine the chemical composition in the three vegetative stages of the haloxylon sp., degradation parameters, with adding naoh and ca(oh2 ). for this purpose, in may and october and january 2010 enough some haloxylon sp. of the ammary area was prepared. crude protein and ash percentage are decrease, neutral detergent fiber percentage with pragress stage ...
In tobacco cultivars resistant to tobacco mosaic virus (TMV), infection results in the death of the infected cells accompanying the formation of necrotic lesions. To identify the genes involved in this hypersensitive reaction, we isolated the cDNA of tobacco DS9, the transcript of which decreases before the appearance of necrotic lesions. The DS9 gene encodes a chloroplastic homolog of bacteria...
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