Note on the probable cause of the occurrence of tetraploid plants in commercial triploid varieties of sugar beet S. EllertonA. J. Th. Hendriksen OriginalPaper Pages: 99 - 103
Notes on the inheritance of field resistance of the foliage of Solanum tuberosum to Phytophthora infestans H. J. Toxopeus OriginalPaper Pages: 117 - 124
The value of comparative tests of progenies from open-pollinated female asparagus plants J. A. Huyskes OriginalPaper Pages: 141 - 144
Trials to overcome the incompatibility of crosses between Lycopersicum esculentum and Lycopersicum glandulosum by repeated grafting K. Szteyn OriginalPaper Pages: 145 - 150
Manihot melanobasis Müll. Arg. — A useful parent for cassava breeding D. L. Jennings OriginalPaper Pages: 157 - 162
Some experiences with the breeding of pointed-headed cabbage M. Nieuwhof OriginalPaper Pages: 163 - 168
Chlorophyll inheritance patterns and extent of natural self-pollination in timothy E. L. NielsenD. C. Smith OriginalPaper Pages: 169 - 179
