References
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- 2. Collins, W. K., Jones, G. L., Weybrew, J. A., and Matzinger, D. F.: Crop Science 1 (1961) 407. 10.2135/cropsci1961.0011183X000100060007x
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- 4. Resnik, F. E., Danker, W. H., and Daylor, F. L., Jr.: Proceedings of the Third World Tobacco Scientific Congress, Salisbury, 1963, 522.
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