engleski

First finding of beet necrotic yellow vein furovirus in Croatia

In fields of sugar beet (Beta vulgaris L. var. saccharifera) near Osijek and @upanja (eastern region of Croatia) virus symptoms similar to those of beet necrotic yellow vein furovirus (BNYVV) were observed on the plant specimens in 1997. The main symptoms were pale greenish yellow foliage, upright leaves, reduced root size and root proliferation characteristic of rhizomania. Samples of sugar beet collected in the fields during June, July and August 1997 were checked for BNYVV. In these samples BNYVV has been revealed. This has been established on the basis of test plant reactions, serology, electron microscope analysis of virus particles and soil transmission experiments. That is the first sure finding of rhizomania caused by BNYVV in sugar beet in Croatia. Our trials to isolate BNYVV from sugar beets growing in fields near ^akovec and Virovitica (northwestern and central part of Croatia, respectively), which also showed rhizomania symptoms, were unsuccessful.

nije evidentirano

nije evidentirano