Articles
CONCLUSIONS FROM RESEARCH ON REPLANT PROBLEMS WITH APPLE TREES AND POSSIBILITIES OF ITS CONTROL
Article number
233_3
Pages
21 – 24
Language
Abstract
Specific apple replant disease has been of great concern in Czechoslovakia.
This disease can be detected by biological tests in many soil types after tree removal and occured more often in old orchards and high density plantings.
Biological soil tests showed a growth depression with both shoot and root.
Nematodes were excluded in Czechoslovakia as possible causes of this effect.
Neither was the concentration of the root toxin phloridzin associated with the observed growth depression.
Soil disinfection with chemicals partly counteracted the growth depression.
This disease can be detected by biological tests in many soil types after tree removal and occured more often in old orchards and high density plantings.
Biological soil tests showed a growth depression with both shoot and root.
Nematodes were excluded in Czechoslovakia as possible causes of this effect.
Neither was the concentration of the root toxin phloridzin associated with the observed growth depression.
Soil disinfection with chemicals partly counteracted the growth depression.
Publication
Authors
G.B. Hudska
Keywords
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