Naslov
The occurrence of Barley Yellow Dwarf virus in 2002 in Croatia

Autori
Cvjetković, Bogdan ; Halupecki, Edyta

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Zbornik predavanj in referatov 6. slovenskog posvetovanja o varstvu rastlin / Maček, Jože - Ljubljana : Društvo za varstvo rastlin Slovenije, 2003, 472-477

Skup
6. slovensko posvetovanje o varstvu rastlin

Mjesto i datum
Zreče, Slovenija, 04.03.2003. - 06.03.2003

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Barley Yellow Dwarf; seeds; wheat; barley; Croatia

Sažetak
In the spring of 2002 increased reduced growth of barley was observed at many locations in Croatia (Belje, Daruvar, Đakovo, Kutjevo, Nova Gradiška, Tovarnik, Valpovo and Zagreb). Based on the symptoms we concluded this was due to a virus infection. The barley leaves were golden yellow and lagged in growth. The change in leaf colour began from the tip and edges of the leaf and spread to the lower parts. Watery spots could be observed on the yellowed leaves. The leaves of infected plants stood upright (bristled) and were thicker than those on the healthy plants. The symptoms on barley appeared on a group of several plants in a circle and included greater or smaller areas. Regarding dwarfing there were great differences. Some plants remained short – ; only 10-15 cm high and the ears were smaller and often empty. The symptoms on wheat were similar to those on barley and on some varieties the yellow colour on the leaves turned to a reddish colour. There was no marked underdevelopment on wheat. With increased temperatures in May and June the leaves gradually lost their yellow colour. Samples of plants with symptoms were collected from the fields and the ELISA-test was performed for the presence of the PAV strain of the BYD virus. The virus was determined at the following locations: Brestovac (barley Lord ; wheat Barbara and Super Žitarka), Kneževo (barley Zlatko) and Kutjevo (barley Gaelic), Zagreb (wheat Dukat, Rennan, Banica, Marija, Kuna, Soisson, Superžitarka, Žitarka and Patria). In the region of Belje experts from the Department for Agricultural Zoology of the Faculty of Agriculture in Zagreb determined a variety of aphids which are known vectors of BYDV-PAV. Similar symptoms had been described in Croatia previously and they led to the presumption that this was Barley yellow dwarf virus (Panjan, 1964, Šarić, 1986). This is first definite determination of Barley yellow dwarf virus in Croatia on barley and on wheat.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA