Date of this Version
Goss, R.W. and Peltier, George L. (1925) Further studies on the effect of environment on potato degeneration diseases (Research Bulletin: Bulletin of the Agricultural Experiment Station of Nebraska No. 29)
The identification of potato degeneration diseases in the field is extremely difficult owing to the number of diseases now described, their manifestation on different varieties, the combination of several diseases on the same plant, and the further splitting up of these combinations into separate diseases. The influence of environmental factors in intensifying or inhibiting the symptoms of these diseases also increases the difficulty of diagnosis. In the present investigation the effect of environmental factors has been studied with the purpose of determining the limiting factor or factors in the masking of the symptoms, in the hopes of simplifying a complex problem by the elimination of certain other factors which have often been cited as causing a masking.