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Seed transmission of turnip yellow mosaic virus in winter turnip and winter oilseed rapes
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SummaryThis is the first record of seed transmission of turnip yellow mosaic virus (TYMV) in oilseed and turnip rapes. The seed transmission of TYMV in a naturally infected winter turnip rape (Brassica napus var. silvestris) cultivar Perko PVH was investigated. By ELISA 1.6%, 3.2% and 8.3% seed transmission of the virus was found in seed of plants from three localities.The proportion of infected seeds produced by artificially infected plants of winter oilseed rape (Brassica napus ssp. oleifera) and winter turnip rape cultivars was determined. The virus transmission rate, expressed as the proportion of virus‐infected plants which germinated from the seed was for the oilseed rape cvs Jet Neuf 0.1%, Solida 0.4%, Silesia 0.8%, Darmor 1.2%, SL‐507 0.2%, SL‐509 0.0% and for the winter turnip rape cv. Perko 1.5%. ELISA cannot be used in direct tests on bulk seed lots to estimate proportion of infected seed, but must be used on germinated seedlings.
Title: Seed transmission of turnip yellow mosaic virus in winter turnip and winter oilseed rapes
Description:
SummaryThis is the first record of seed transmission of turnip yellow mosaic virus (TYMV) in oilseed and turnip rapes.
The seed transmission of TYMV in a naturally infected winter turnip rape (Brassica napus var.
silvestris) cultivar Perko PVH was investigated.
By ELISA 1.
6%, 3.
2% and 8.
3% seed transmission of the virus was found in seed of plants from three localities.
The proportion of infected seeds produced by artificially infected plants of winter oilseed rape (Brassica napus ssp.
oleifera) and winter turnip rape cultivars was determined.
The virus transmission rate, expressed as the proportion of virus‐infected plants which germinated from the seed was for the oilseed rape cvs Jet Neuf 0.
1%, Solida 0.
4%, Silesia 0.
8%, Darmor 1.
2%, SL‐507 0.
2%, SL‐509 0.
0% and for the winter turnip rape cv.
Perko 1.
5%.
ELISA cannot be used in direct tests on bulk seed lots to estimate proportion of infected seed, but must be used on germinated seedlings.
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