Effect of soil-applied NPK fertilizers on severity of black spot disease (Alternaria brassicae) and yield of oilseed rape

1994 ◽  
Vol 167 (2) ◽  
pp. 313-320 ◽  
Author(s):  
S. R. Sharma ◽  
S. J. Kolte
Keyword(s):  
Oilseed Rape ◽  
Black Spot ◽  
Alternaria Brassicae ◽  
Npk Fertilizers ◽  
Spot Disease ◽  
Black Spot Disease

scholarly journals Alternaria Black Spot (Alternaria brassicae) Infection Severity on Cruciferous Oilseed Crops

2021 ◽  
Vol 11 (18) ◽  
pp. 8507
Author(s):  
Eve Runno-Paurson ◽  
Peeter Lääniste ◽  
Helina Nassar ◽  
Merili Hansen ◽  
Viacheslav Eremeev ◽  
...  
Keyword(s):  
Oilseed Rape ◽  
Black Spot ◽  
Oilseed Crop ◽  
Alternaria Brassicae ◽  
Limited Information ◽  
Oilseed Crops ◽  
Spot Disease ◽  
Growing Seasons ◽  
Northern Latitudes ◽  
Black Spot Disease

The increase in the cultivation area of cruciferous oilseed crops and the use of short crop rotation has resulted in the enhanced spread of several major pests in Northern latitudes. There is currently limited information about incidence and severity of Alternaria black spot disease (Alternaria brassicae) on the main oilseed crop, spring oilseed rape (Brassica napus), in the Northern Baltics. Thus, spring oilseed rape and five alternative cruciferous oilseed crops were selected and their resistance to black spot disease was evaluated in field conditions during two growing seasons. We hypothesized that spring oilseed rape is more susceptible to Alternaria black spot disease than other alternative cruciferous oilseed crops. Both growing seasons were warmer and drier compared to the long-term average, and were thus suitable for A. brassicae development and assessments. In both years, incidence of Alternaria black spot infection was recorded on all cruciferous species, yet the disease development differed considerably among the crops. During both growing seasons, black mustard (B. nigra) plants were the most infected. Based on our observations during warm growing seasons we conclude that alternative oilseed crops such as Sinapis alba, Eruca sativa and Raphanus sativus are more resistant to the Alternaria black spot infection than the traditional oilseed crops and thus, possess a great potential to grow with limited chemical disease control in Northern Baltic conditions.

scholarly journals Survey and Pathogenicity of Black Spot Disease of Rose in Pakistan

2016 ◽  
Vol 03 (04) ◽  
Author(s):  
Yasin NA ◽  
Ahmed S ◽  
Khan WU ◽  
Ashraf Y
Keyword(s):  
Black Spot ◽  
Spot Disease ◽  
Black Spot Disease

scholarly journals Selection of Mutant Japanese Pears Resistant to Black Spot Disease by Acute Irradiation of Gamma-rays

1994 ◽  
Vol 62 (4) ◽  
pp. 701-706 ◽  
Author(s):  
Kenji Murata ◽  
Kenichi Kitagawa ◽  
Testuo Masuda ◽  
Kosuke Inoue ◽  
Kazuo Kotobuki ◽  
...  
Keyword(s):  
Gamma Rays ◽  
Black Spot ◽  
Spot Disease ◽  
Acute Irradiation ◽  
Selection Of ◽  
Black Spot Disease

Black spot disease ofLentinula edodescaused by theHyphozymasynanamorph ofEleutheromyces subulatus

Mycologia ◽  
1997 ◽  
Vol 89 (6) ◽  
pp. 867-875 ◽  
Author(s):  
Akihiko Tsuneda ◽  
Shigeyuki Murakami ◽  
Warwick M. Gill ◽  
Nitaro Maekawa
Keyword(s):  
Black Spot ◽  
Spot Disease ◽  
Black Spot Disease

In vivo testing of antagonistic fungi against Alternaria brassicicola causing Chinese kale black spot disease

2020 ◽  
Author(s):  
Atima Komhorm ◽  
Suttipong Thongmee ◽  
Todsawat Thammakun ◽  
Thanaprasong Oiuphisittraiwat ◽  
Arom Jantasorn
Keyword(s):  
Black Spot ◽  
Alternaria Brassicicola ◽  
Spot Disease ◽  
Antagonistic Fungi ◽  
Chinese Kale ◽  
In Vivo Testing ◽  
Black Spot Disease

Genetic mapping of genes for susceptibility to black spot disease in Japanese pears

Genome ◽  
2007 ◽  
Vol 50 (8) ◽  
pp. 735-741 ◽  
Author(s):  
S. Terakami ◽  
Y. Adachi ◽  
H. Iketani ◽  
Y. Sato ◽  
Y. Sawamura ◽  
...  
Keyword(s):  
Black Spot ◽  
Japanese Pear ◽  
Pyrus Pyrifolia ◽  
Breeding Programs ◽  
Spot Disease ◽  
Genome Scanning ◽  
A Genome ◽  
Susceptibility And Resistance ◽  
Different Sources ◽  
Black Spot Disease

Black spot disease, which is caused by the Japanese pear pathotype of Alternaria alternata (Fr.) Keissler, is one of the most harmful diseases in Japanese pear cultivation. We identified the exact positions and linkage groups (LGs) of the genes for susceptibility to black spot in the Japanese pear ( Pyrus pyrifolia Nakai) cultivars ‘Osa Nijisseiki’ (gene Ani) and ‘Nansui’ (gene Ana). Segregation of susceptibility and resistance fitted the expected ratio of 1:1 in progeny of ‘Nansui’ but showed a slight distortion in progeny of ‘Osa Nijisseiki’. We mapped the genes for susceptibility to black spot in both populations using a genome scanning approach. The simple sequence repeat (SSR) markers CH04h02 and CH03d02 showed tight linkage to Ani and Ana. Although Ani and Ana are derived from different sources, both genes are located at the top region of LG 11. Information about the positions of the susceptibility genes and the molecular markers linked to them will be useful for marker-assisted selection in pear breeding programs.

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