Current issue: 58(5)
Articles containing the keyword 'Melampsora'
Category : Article
The purpose of this article was to collate the literature on fungal diseases that occur on seedlings in forest nurseries. It describes the symptoms of the diseases, the infection pattern of each fungus and the possibilities of controlling the diseases. As background a short introduction is given on forests and nursery practices in Finland.
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Lilja,
E-mail:
al@mm.unknown
- Kurkela, E-mail: tk@mm.unknown
- Lilja, E-mail: sl@mm.unknown
- Rikala., E-mail: rr@mm.unknown
Based on a survey of world literature it is concluded that 1) the better -researched epidemic forest pathosystems are caused by anthropogenic factors, 2) the systems most likely have a polygenic background, and 3) resistance breeding should maintain polygenic resistance with restrictive incorporation of oligogenic resistance. Corresponding objectives are valid in breeding programs of presently balanced pathosystems, which may turn epidemic if man causes changes in the gene pool and alters critical environmental conditions.
The PDF includes an abstract in English.
-
Weissenberg,
E-mail:
kw@mm.unknown
