บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Incidence, appearance and development of potato mop-top furovirus-induced spraing in potato cultivars and the influence on yield, distribution in Denmark and detection of the virus in tubers by ELISA.

Nielsen, S. L.; Molgaard, J. P.;

Potato Research Year: 1997 Vol: 40 Issue: 1 Pages: 101-110 Ref: 21 ref.

1997

บทคัดย่อ

Incidence, appearance and development of potato mop-top furovirus-induced spraing in potato cultivars and the influence on yield, distribution in Denmark and detection of the virus in tubers by ELISA.

In Denmark, during 1992-94, 23 potato cultivars were grown in fields infested with potato mop-top furovirus (PMTV) and spraing was assessed on tubers at harvest and after storage. Large differences in spraing susceptibility were found between cultivars. Compared with other countries, spraing in Denmark is characterized by a high incidence at harvest, a low increase during storage and a very low proportion of superficial spraing. Decrease in spraing during storage was recorded in 2 cultivars. Double antibody sandwich-ELISA tests for PMTV in tubers was very reliable. Mapping of PMTV in important Danish potato growing areas showed that the virus is widespread. Occurrence of spraing did not influence total yield or dry matter content. Soil acidity did not influence incidence of spraing but it was more common on coarse-grained soil than on finer sandy soils. PMTV in viruliferous resting spores of Spongospora subterranea was inactivated by heating to 90 deg C for 15 minutes.