id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
afs-71182	Jamalainen, E. A.	The significance of potato virus diseases in Finland	1946	13	.pdf	application/pdf	6345	358	55	Due to the cold climate and short period of growth prevailing in our country the qualifications for the increase of aphids spreading potato virus diseases anywhere in Finland and especially in the central and northern parts of the country are evidently smaller than in the more southern countries, and, accordingly, the possibilities of the spreading of virus diseases are also smaller. At the Department of Plant Pathology potato virus diseases have been cont- inuously observed, and it has been verified that especially in potatoes brought from foreign countries virus diseases occur plentifully, e.g. in 1945, when the Depart- ment carried out experiments with a number of potato varieties obtained from Sweden.	cache/afs-71182.pdf	txt/afs-71182.txt