downy mildew.
OUTBREAK OF MAIZE DOWNY MILDEW (Sclerophthora macrospora) IN SLOVENIA IN 1999
... Theoretically, young maize plants are exposed to infections through seeds, air or soil. Sexual spores (resting spores or oospores) of the Sclerophthtora macrospora species are hialine to yellowish, lemon-shaped, contain ...
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Physical mapping in a triplicated genome: mapping the downy mildew resistance locus Pp523 in Brassica oleracea L.
... inherited downy mildew resistance locus Pp523 of Brassica oleracea ...the downy mildew resistance locus Pp523, a subset of 33 BAC clones mapped to another region on chromosome C8 that was 60 ...
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Behavior of grape breeding lines with distinct resistance alleles to downy mildew (Plasmopara viticola)
... The inoculation technique on leaf discs is widely used in genetic resistance studies against P. viticola. In grape, this strategy is effective for distinguishing phenotypic differentiation between resistant and ...
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Climatic risk of grape downy mildew (Plasmopara viticola) for the State of São Paulo, Brazil. - Portal Embrapa
... the downy mildew (Plasmopara viticola) is one of the main diseases affecting this crop in Brazil, with extreme damage effects on its ...the downy mildew on grape under the climatic conditions ...
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Pathogenic, morphological and genetic diversity in Plasmopara halstedii, the causal agent of sunflower downy mildew
... The two sunflower hybrids H3 and H4 came from L1b, which may carry Pl8. Since Pl8 confers resistance to all known races and Pl2 and Pl8 segregate independently in L1b (TOURVIEILLE DE LABROUHE et al., 2010), it was not ...
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Frequency of fungicide application for controlling downy mildew in seedless grape plant ‘BRS Vitória’
... of downy mildew were observed approximately 20 days after the first spraying on the leaves of the plants submitted for a “one spraying every 21 days” and “spraying after sporulation” treatments, but the ...
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A downy mildew effector attenuates salicylic acid-triggered immunity in Arabidopsis by interacting with the host mediator complex.
... Arabidopsis downy mildew pathogen Hyaloperonospora arabidopsidis (Hpa), interacts with and degrades the Mediator subunit MED19a, resulting in the alteration of plant defence gene ...
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'BRS Vitória' - a novel seedless table grape cultivar exhibiting special flavor and tolerance to downy mildew (Plamopara viticola)
... demands of the segment in Brazil. The cultivar agricultural and yield performance was adequate in trials carried out in the region of the São Francisco River Valley, located in the Northeast of Brazil, in the ...
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Historical introgression of the downy mildew resistance gene Rpv12 from the Asian species Vitis amurensis into grapevine varieties.
... Phenotyping of mapping populations was done using biological replicates raised from rooted cuttings taken from seedlings. In field experiments, vineyards were maintained following standard crop practices and withholding ...
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Over-expression of VvWRKY1 in grapevines induces expression of jasmonic acid pathway-related genes and confers higher tolerance to the downy mildew.
... Interestingly, the involvement of jasmonic acid in grapevine resistance to downy mildew is also supported by previous studies. Particularly, the work that compared transcriptional responses to downy ...
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Application and validation of a warning system for grapevine downy mildew control using fungicides
... available and a scientific basis for timing fungicides is lacking. In general, from 8 to 10 sprayings are used per season for downy mildew control. The cost of chemical control is approximately 36% of the ...
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Climate change and the occurrence of downy mildew in Brazilian grapevines
... of downy mildew incidence is observed from October to December (first phase), and late outbreaks (second phase) can be observed in the months of January to ...grapevine downy mildew outbreaks ...
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Daytime Solar Heating Controls Downy Mildew Peronospora belbahrii in Sweet Basil.
... Experiment B. In mid-February 2014 about 800 six-leaf plants were planted in NH6. The house was covered with PE but the west and east sides were left open. The high humidity and moderate rise in temperature facilitates a ...
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Elaboration and validation of a diagrammatic scale to assess downy mildew severity in grapevine
... Development of diagrammatic scale. To develop the diagrammatic scale, 30 grapevine leaves of ‘Italia’ cultivar ranging from minimum to maximum levels of downy mildew severity were collected from a ...
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Climate change and the occurrence of downy mildew in Brazilian grapevines. - Portal Embrapa
... Under controlled conditions, the results allowed aggregating information and supporting the validation of the geographic and temporal distribution map of grapevine downy mildew. However, information on the ...
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Transcriptomic analysis reveals distinct resistant response by physcion and chrysophanol against cucumber powdery mildew
... powdery mildew and downy mildew populations (Yang et ...powdery mildew pathogen was better than that of the other anthraquinones in pot ...powdery mildew pathogens (Ma et ...
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Whole Genome Re-Sequencing and Characterization of Powdery Mildew Disease-Associated Allelic Variation in Melon.
... dery mildew resistance (Pm) genes have been mapped or cloned in the melon genome (Pm-1; [61], Pm-2; [62], Pm-3; [63], Pm-4 and Pm-5; [64], Pm-6; [65], Pm-8; [66], and Pm-F & Pm-G; ...that Mildew Locus O ...
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Establishment of a broad-spectrum marker for er1/PsMLO1 powdery mildew resistance in pea (Pisum sativum L.)
... A second recessive locus for powdery mildew resistance, er2 was identified in very few lines, e.g. SVP 951, SVP 952 and JI2480 (Heringa et al., 1969; Tiwari et al., 1997). However, Heringa et al., (1969) observed ...
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Development of partial ontogenic resistance to powdery mildew in hop cones and its management implications.
... powdery mildew [5,7]. Impacts of powdery mildew on development of bittering acids appears strongly linked to the timing of ...powdery mildew or duration of fungicide applications after bloom and the ...
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Bioprospecting for plant and fungus extracts with systemic effect to control the cucumber powdery mildew. - Portal Embrapa
... The best results obtained in the bioprospecting for extracts with systemic effect were those with Ganoderma and Oudemansiella. The family Ganodermataceae is a quite numerous and diversified group of fungi. Some of them ...
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