Results 141 to 150 of about 969 (163)
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Occurrence and pathogenicity of Puccinia coronata var avenae f. sp. avenae on oat in South Africa
Crop Protection, 2020Abstract Crown rust, caused by Puccinia coronata Corda var. avenae f. sp. avenae (Urban & Markova) (Pca), can negatively impact oat (Avena sativa L.) production in South Africa and little is known about pathogenic variability and cultivar response.
W.H.P. Boshoff +3 more
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Agricultural Sciences in China, 2010
The objective of this paper was to investigate the mode of heredity for resistance in oats (Avena sp.) to crown rust caused by Puccinia coronata Cda. f. sp. avenae Eriks. Eight generations of 2 crosses were used to estimate genetic effects and narrow-sense heritability (NSH).
F Bnejdi +4 more
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The objective of this paper was to investigate the mode of heredity for resistance in oats (Avena sp.) to crown rust caused by Puccinia coronata Cda. f. sp. avenae Eriks. Eight generations of 2 crosses were used to estimate genetic effects and narrow-sense heritability (NSH).
F Bnejdi +4 more
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Reactions of eastern Canada oat genotypes to Puccinia coronata f. sp. avenae
Canadian Journal of Plant Science, 2020Crown rust, caused by Puccinia coronata f. sp. avenae (Pca), is the most important disease and yield limiting factor of oat production in eastern Canada. In this study 101 oat genotypes composed of 51 cultivars and 50 breeding lines from eight oat breeding programs across Canada were evaluated for seedling reactions to six common Pca races, as well as
Xue, Allen +8 more
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Australasian Plant Pathology, 2002
Two experiments were conducted to examine the effects of temperature and light on the interaction between different genotypes of Avena and Puccinia coronata f. sp. avenae (Pca). In the first experiment, 45 oat lines were tested with two pathogenically distinct isolates of Pca under three temperature and two light regimes.
D. G. Bonnett +3 more
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Two experiments were conducted to examine the effects of temperature and light on the interaction between different genotypes of Avena and Puccinia coronata f. sp. avenae (Pca). In the first experiment, 45 oat lines were tested with two pathogenically distinct isolates of Pca under three temperature and two light regimes.
D. G. Bonnett +3 more
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Phytopathology®, 2023
Six quantitative trait loci (QTLs) for adult plant resistance against oat crown rust ( Puccinia coronata f. sp. avenae) were identified from mapping three recombinant inbred populations. Using genotyping-by-sequencing with markers called against the OT3098 v1 reference genome, the QTLs were mapped on six different chromosomes: Chr1D, Chr4D, Chr5A ...
Eric S. Nazareno +5 more
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Six quantitative trait loci (QTLs) for adult plant resistance against oat crown rust ( Puccinia coronata f. sp. avenae) were identified from mapping three recombinant inbred populations. Using genotyping-by-sequencing with markers called against the OT3098 v1 reference genome, the QTLs were mapped on six different chromosomes: Chr1D, Chr4D, Chr5A ...
Eric S. Nazareno +5 more
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2023
Puccinia coronata f. sp. avenae вызывает заболевание корончатой ржавчиной у овса. Значительные потери урожая, вызванные этим патогеном, представляют собой одну из самых разрушительных угроз для сельскохозяйственных культур во всем мире. Возбудитель корончатой ржавчины – гриб-базидиомицет с облигатным биотрофным образом жизни.
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Puccinia coronata f. sp. avenae вызывает заболевание корончатой ржавчиной у овса. Значительные потери урожая, вызванные этим патогеном, представляют собой одну из самых разрушительных угроз для сельскохозяйственных культур во всем мире. Возбудитель корончатой ржавчины – гриб-базидиомицет с облигатным биотрофным образом жизни.
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The Journal of Applied Ecology, 1983
Evaluation de l'abondance, de la diversite et du pouvoir pathogene des populations de P.c. et de P.g.f.a. en Nouvelle Galles du Sud pour 3 especes sauvages d'avoine (A. barbata, A. fatua, A. ludoviciana)
J. D. Oates, J. J. Burdon, J. B. Brouwer
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Evaluation de l'abondance, de la diversite et du pouvoir pathogene des populations de P.c. et de P.g.f.a. en Nouvelle Galles du Sud pour 3 especes sauvages d'avoine (A. barbata, A. fatua, A. ludoviciana)
J. D. Oates, J. J. Burdon, J. B. Brouwer
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Incidence and virulence ofPuccinia coronataf. sp.avenaein Canada in 1993
Canadian Journal of Plant Pathology, 1994En 1993, des taux d'atteinte de la rouille couronnee (causee par Puccinia coronata f. sp. avenae) variant de l'etat de traces a 10 % ont ete observes chez de l'avoine receptive (Avena sativa) et de la folle avoine (A. fatua) au Manitoba, a la mi-juillet.
J. Chong, W.L. Seaman
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The production of phytoalexins by oat in response to crown rust, Puccinia coronata f. sp. avenae
Physiological Plant Pathology, 1981The antifungal compounds accumulated only in the incompatible host-parasite combinations; the time of rapid accumulation coincided with the time of the retardation of the growth of infection hyphae. Three major compounds were isolated. They are highly hydrophilic nitrogen-containing phenolics.
S. Mayama +4 more
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The role of avenalumin in the resistance of oat to crown rust, Puccinia coronata f. sp. avenae
Physiological Plant Pathology, 1982The relationship between the degree of expression of resistance and the production of avenalumins was investigated in the interactions of 2 physiological races of Puccinia coronata avenae and 21 oat Pc lines each carrying a different single major gene for resistance. Avenalumins accumulated in all incompatible interactions.
S. Mayama, Y. Matsuura, H. Iida, T. Tani
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