نتایج جستجو برای: rhynchosporium secalis
تعداد نتایج: 145 فیلتر نتایج به سال:
Genetic drift and selection are ubiquitous evolutionary forces acting to shape genetic variation in populations. While their relative importance has been well studied in plants and animals, less is known about their relative importance in fungal pathogens. Because agro-ecosystems are more homogeneous environments than natural ecosystems, stabilizing selection may play a stronger role than genet...
Plants under attack by pathogens and pests can mount a range of inducible defences, encompassing both chemical and structural changes. Although few reports exist, it appears that plants responding to pathogen or herbivore attack, or chemical defence elicitors, may produce progeny that are better able to defend themselves against attack, compared with progeny from unthreatened or untreated plant...
The article is devoted to the effect of biofertilizers (Bioklad and Vermix) on severity common diseases spring barley in field trials conducted Orel region. authors estimate risks analyse results three-year experiment, carried out under certain weather climate conditions. subject research crop Suzdalets intensive farming (zoned for 2, 3, 5 regions Russia). For a more comprehensive assessment, e...
کریمی ک.، ارزنلو م. و میرابی ف. 1393. بیماری اسکالد جو. دانش بیماری‌شناسی گیاهی 4(1):12-1. جو یکی از غلات پرمصرف در جهان به شمار می‌رود. بیماری سوختگی برگ یا اسکالد ناشی از قارچ Rhynchosporium commune یکی از مخرب‌ترین بیماری‌های این گیاه به شمار می‌رود که در شرایط مساعد میزان خسارت آن می‌تواند به 40 درصد محصول برسد. آلودگی اولیه از هاگ‌های آزاد شده از بقایای بوته‌های بیمار سال زراعی قبل پدید...
To predict the response of plant pathogens to climate warming, data are needed on current thermal adaptation, the pathogen's evolutionary potential, and the link between them. We conducted a common garden experiment using isolates of the fungal pathogen Rhynchosporium commune from nine barley populations representing climatically diverse locations. Clonal replicates of 126 genetically distinct ...
Abstract Breeding of multi-resistant varieties to reduce yield loss due disease damage and lodging, reduction input intensity are high importance for a more sustainable cereal production. The aim this study was evaluate (i) caused by diseases lodging (ii) impact soil fertility in variety trials grown under two intensities. Intensity 2 treated with 1 without fungicides growth regulators. We appl...
There is a large diversity of genetically defined resistance genes in bread wheat against the powdery mildew pathogen Blumeria graminis (B. g.) f. sp. tritici. Many confer race-specific resistance to this pathogen, but until now only the mildew avirulence gene AvrPm3a2/f2 that is recognized by Pm3a/f was known molecularly. We performed map-based cloning and genome-wide association studies to is...
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