The pathogenicity and importance of seed-borne infection by Bipolaris sorokiniana on barley in Finland
Seed-borne infection by Bipolaris sorokiniana decreased the percentage germination of barley seeds and the emergence of seedlings. Infection levels were higher in non-germinated than in germinated seeds. Seed treatment with organomercurial fungicide or imazalil improved the percentage emergence but...
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Scientific Agricultural Society of Finland
1985
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ftdoajarticles:oai:doaj.org/article:6dac97ef85c5425fa7e7ec4f55cd9a48 2023-05-15T16:53:46+02:00 The pathogenicity and importance of seed-borne infection by Bipolaris sorokiniana on barley in Finland Aarne Kurppa 1985-05-01T00:00:00Z https://doaj.org/article/6dac97ef85c5425fa7e7ec4f55cd9a48 EN eng Scientific Agricultural Society of Finland https://journal.fi/afs/article/view/72191 https://doaj.org/toc/1459-6067 https://doaj.org/toc/1795-1895 1459-6067 1795-1895 https://doaj.org/article/6dac97ef85c5425fa7e7ec4f55cd9a48 Agricultural and Food Science, Vol 57, Iss 2 (1985) Agriculture S Agriculture (General) S1-972 article 1985 ftdoajarticles 2022-12-31T03:00:34Z Seed-borne infection by Bipolaris sorokiniana decreased the percentage germination of barley seeds and the emergence of seedlings. Infection levels were higher in non-germinated than in germinated seeds. Seed treatment with organomercurial fungicide or imazalil improved the percentage emergence but a low number of diseased seedlings still remained in the crops. The fungus caused a reduction in grain yields in most experiments and also decreased their value as sowing seed, if the weather conditions were favourable for compute disease expression. Yield losses in greenhouse experiments varied from 7.2 to 38.5 % and in the field from 5 to 11 %, and showed a strong correlation with the infection levels in the seed stocks. Higher losses were associated with the six-row cultivars. Organomercury seed treatment resulted in a slight but in significant increase in yields but it was able to prevent an occurrence of secondary infection in the crop resulting in a lower seed infection levels of the grain. In field experiments in Inari (69° N.L.) seed-borne inoculum could be demonstrated clearly to be the only source of a severe disease outbreak. The inoculum remaining in the soil was capable of initiating soil-borne infection of barley seedlings during the following two growing seasons. Article in Journal/Newspaper Inari Directory of Open Access Journals: DOAJ Articles Inari ENVELOPE(27.029,27.029,68.906,68.906) |
institution |
Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Agriculture S Agriculture (General) S1-972 |
spellingShingle |
Agriculture S Agriculture (General) S1-972 Aarne Kurppa The pathogenicity and importance of seed-borne infection by Bipolaris sorokiniana on barley in Finland |
topic_facet |
Agriculture S Agriculture (General) S1-972 |
description |
Seed-borne infection by Bipolaris sorokiniana decreased the percentage germination of barley seeds and the emergence of seedlings. Infection levels were higher in non-germinated than in germinated seeds. Seed treatment with organomercurial fungicide or imazalil improved the percentage emergence but a low number of diseased seedlings still remained in the crops. The fungus caused a reduction in grain yields in most experiments and also decreased their value as sowing seed, if the weather conditions were favourable for compute disease expression. Yield losses in greenhouse experiments varied from 7.2 to 38.5 % and in the field from 5 to 11 %, and showed a strong correlation with the infection levels in the seed stocks. Higher losses were associated with the six-row cultivars. Organomercury seed treatment resulted in a slight but in significant increase in yields but it was able to prevent an occurrence of secondary infection in the crop resulting in a lower seed infection levels of the grain. In field experiments in Inari (69° N.L.) seed-borne inoculum could be demonstrated clearly to be the only source of a severe disease outbreak. The inoculum remaining in the soil was capable of initiating soil-borne infection of barley seedlings during the following two growing seasons. |
format |
Article in Journal/Newspaper |
author |
Aarne Kurppa |
author_facet |
Aarne Kurppa |
author_sort |
Aarne Kurppa |
title |
The pathogenicity and importance of seed-borne infection by Bipolaris sorokiniana on barley in Finland |
title_short |
The pathogenicity and importance of seed-borne infection by Bipolaris sorokiniana on barley in Finland |
title_full |
The pathogenicity and importance of seed-borne infection by Bipolaris sorokiniana on barley in Finland |
title_fullStr |
The pathogenicity and importance of seed-borne infection by Bipolaris sorokiniana on barley in Finland |
title_full_unstemmed |
The pathogenicity and importance of seed-borne infection by Bipolaris sorokiniana on barley in Finland |
title_sort |
pathogenicity and importance of seed-borne infection by bipolaris sorokiniana on barley in finland |
publisher |
Scientific Agricultural Society of Finland |
publishDate |
1985 |
url |
https://doaj.org/article/6dac97ef85c5425fa7e7ec4f55cd9a48 |
long_lat |
ENVELOPE(27.029,27.029,68.906,68.906) |
geographic |
Inari |
geographic_facet |
Inari |
genre |
Inari |
genre_facet |
Inari |
op_source |
Agricultural and Food Science, Vol 57, Iss 2 (1985) |
op_relation |
https://journal.fi/afs/article/view/72191 https://doaj.org/toc/1459-6067 https://doaj.org/toc/1795-1895 1459-6067 1795-1895 https://doaj.org/article/6dac97ef85c5425fa7e7ec4f55cd9a48 |
_version_ |
1766044340884340736 |