Conclusion
It was noted in the introduction that E. J. Butler is credited with the statement that the present period in phytopathology is one in which disease is considered as an interaction of the host and the parasite “under the conditioning influence of environment”. The foregoing pages lend ample proof of the truth of that statement.
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The writer is indebted to Dr. A. G. Johnson for many helpful suggestions in preparation of the manuscript.
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Tapke, V.F. Environment and the cereal smuts. Bot. Rev 14, 359–412 (1948). https://doi.org/10.1007/BF02861724
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DOI: https://doi.org/10.1007/BF02861724