Species identification and potato tuber resistance to Fusarium spp.
Tamburic-Ilincic, L.
Zastita Bilja Year: 1996 Vol: 47 Issue: 2 Pages: 167-177 Ref: 17 ref.
1996
บทคัดย่อ
A study was undertaken to identify causal agents of the dry rot of tubers and to determine resistance of the cultivars Desire and Ranka, and the hybrid S-79-1K/20 to the most common Fusarium spp. Naturally infected tubers of the varieties Desire, Jerla, Primura, Resy, Kondor, Ranka and the hybrid S-79-1K/20 were collected from 6 localities in Bosnia and Herzegovina during 1989 and 1990. The Fusarium spp. were isolated and identified from the collected material. Healthy tubers of the varieties Desire and Ranka and of the hybrid S-79-1K/20 were artificially inoculated by the isolated Fusarium spp. and after 100 d of storage, the disease intensity was evaluated on the 1-9 scale. The results showed that the most frequently isolated species were Fusarium solani var. coeruleum, F. sulphureum [Gibberella cyanogena], F. graminearum [G. zeae] and F. lateritium [G. baccata]. The most common species was F. solani var. coeruleum, while the highest pathogenicity was detected in G. zeae (I=60.8). The most sus
ceptible variety was Ranka, followed by Desire, while the hybrid S-79-1K/20 was the most resistant.