نتایج جستجو برای: leaf spotting pathogen
تعداد نتایج: 153226 فیلتر نتایج به سال:
1. Genetic variation within and among foundation plant species is known to affect arthropod, plant and soil microbial communities. We hypothesized that the same would be expected for pathogen communities, which have typically been studied only as individual pathogen species. 2. In a common garden in Utah, USA, we first tested how genetic differences within and among Populus angustifolia, P. fre...
wheat septoria leaf blotch disease caused by mycosphaerella graminicola is one of the most important diseases of wheat in iran and the world .evaluation the reaction of wheat genotypes and on the other hand identifying pathogen virulence factors are necessary for a successful breeding program. the aim of this study was to assess the adult plant responses of iranian bread and durum wheat geno...
Cladosporium chlorocephalum (= C. paeoniae) is a common, widespread leaf-spotting hyphomycete of peony (Paeonia spp.), characterised by having dimorphic conidiophores. During the season, one stage of this fungus causes distinct, necrotic leaf-blotch symptoms on living leaves of Paeonia spp. In late autumn, winter or after overwintering, a second morphologically distinct conidiophore type occurs...
This paper makes the case for a spotting computation scheme which gives rise to a new classification methodology for processing real world data by surveying algorithms developed under the Real World Computing (RWC) program and related work in Japan. A spotting function has the segmentation-free characteristic which ignores gracefully most real world input data which do not belong to a task doma...
Natural plant extracts / products have the potential as safe alternatives for chemical fungicides in plant disease management. Methanol and pure methanol: water (50:50 v/v) extracts of peppermint, lavandula, eucalyptus, datura and nettle were screened for their antifungal activity against Alternaria sesami, the causal agent of Alternaria leaf spot of sesame at 5, 10 and 15% concentrations in Sh...
Maple tap spot is one of the fungal diseases which has been infected maple trees. Early deciduous, the disappearance of leaf, reduction of growth, seed and wood production of maple trees are resulted due to this disease. The objective of this research was isolation and identification of the pathogen on leaves of Acer velutinum in Dr. Bahramnia educational and research forest (Shast-Kalateh of ...
OBJECTIVE To compare the effectiveness of a hysteroscopic niche resection versus no treatment in women with postmenstrual spotting and a uterine caesarean scar defect. DESIGN Multicentre randomised controlled trial. SETTING Eleven hospitals collaborating in a consortium for women's health research in the Netherlands. POPULATION Women reporting postmenstrual spotting after a caesarean sect...
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