Wyniki wyszukiwania

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Mathematical modelling of life cycle and molecular detection of Leptosphaeria maculans and L. biglobosa species

100%

Dawidziuk A.

Phytopathologia

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2011

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tom 62

2

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Characterization of two coexisting pathogen populations of Leptosphaeria spp., the cause of stem canker of brassicas

80%

Kaczmarek J., Jedryczka M.

Acta Agrobotanica

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2011

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tom 64

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nr 2

Stem canker of brassicas, also known as blackleg is the most damaging disease of many Brassicaceae. The disease is caused by Leptosphaeria maculans (Desm.) Ces et de Not. and L. biglobosa sp. nov., Shoemaker & Brun, which coexist in plants and resulting in disease symptoms and decreased yield, quantity and quality of cultivated vegetables and oilseed rape. The paper presents taxonomic relationships between these coexisting pathogen species, describes particular stages of their life cycles, summarizes the differences between the species, and reviews methods for their identification.

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Development and maturation of pseudothecia of Venturia inaequalis in leaves of different apple cultivars

80%

Meszka B., Bielenin A., Masny S.

Phytopathologia Polonica

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2002

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tom 25

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Rola mocznika w ograniczaniu infekcji pierwotnych jabloni przez Venturia inaequalis [Cooke] Aderh.

70%

Meszka B., Bielenin A.

Acta Agrobotanica

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2002

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tom 55

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nr 1

225-231

The effect of pre-leaf fan of 5% urea treatment on primary infection of apple by Venturia inaequalis, the cause of scab, was investigated in commercial apple orchards of McIntosh cv. in different region s of Poland, at Miłobądz, Sinołęka and Dąbrowice. Additionally, the development of pseudothecia and maturation of ascospores were evaluated in the spńng on apple leaves of two cultivars (McIntosh and Gloster) treated with 5% solution of urea. Microscopic observations of leaves showed that urea treatment significantly reduced the number of pseudothecia (by ca. 90%) and ascospore production. Low number of ascospores after urea treatment has strongly affected primary infection of apple by the fungus in all tested orchards. Reduction of leaf infection on control trees was usually more than 30%. Also efficacy of chemical control of apple scab was significantly higher on plots treated with urea.

Ograniczanie wyników

2 Acta Agrobotanica

1 Phytopathologia

1 Phytopathologia Polonica

2 Bielenin A.

2 Meszka B.

1 Dawidziuk A.

1 Jedryczka M.

1 Kaczmarek J.

1 Masny S.

2 2011

2 2002

Mathematical modelling of life cycle and molecular detection of Leptosphaeria maculans and L. biglobosa species

Characterization of two coexisting pathogen populations of Leptosphaeria spp., the cause of stem canker of brassicas

Development and maturation of pseudothecia of Venturia inaequalis in leaves of different apple cultivars

Rola mocznika w ograniczaniu infekcji pierwotnych jabloni przez Venturia inaequalis [Cooke] Aderh.