1. Alabouvette etRautou: Les Hybrides américains de mais dans les régions méridionales en 1949. C. r. Acad. Agric. France36, 323–327 (1950).
2. Andrew, R. H.: Breeding maize for cold resistance. Euphytica3, 108–116 (1954).
3. Dickson, J. G. Influence of soil temperature and moisture on the development of the seedling-blight of wheat and corn caused byGibberella saubinetii. J. agric. Res.23, 837–870 (1923).
4. Dickson, J. G., andJ. R. Holbert: The influence of temperature upon the metabolism and expression of disease resistance in selfed lines of corn. J. Americ. Soc. Agronomy18, 314–322 (1926).
5. Dickson, J. G., P. E. Hoppe, J. R. Holbert, andG. Janssen: The influence of environment during maturation upon predisposition to seedling blight in wheat and corn strains. Phytopathology19, 79 (1929).