1. Note on the probable cause of the occurrence of tetraploid plants in commercial triploid varieties of sugar beet

   • S. Ellerton
   • A. J. Th. Hendriksen

   OriginalPaper Pages: 99 - 103

2. On the formation of physiologic races in plant parasites

   • J. C. Zadoks

   OriginalPaper Pages: 104 - 116

3. Notes on the inheritance of field resistance of the foliage of Solanum tuberosum to Phytophthora infestans

   • H. J. Toxopeus

   OriginalPaper Pages: 117 - 124

4. The effect of inbreeding in Cyclamen

   • S. J. Wellensiek

   OriginalPaper Pages: 125 - 130

5. Euphytica and the exchange of publications

   • H. De Haan

   OriginalPaper Pages: 131 - 136

6. The 10th F.A.O. Hybrid Maize Conference at Madrid (22–27 September, 1958)

   Report Pages: 137 - 140

7. The value of comparative tests of progenies from open-pollinated female asparagus plants

   • J. A. Huyskes

   OriginalPaper Pages: 141 - 144

8. Trials to overcome the incompatibility of crosses between Lycopersicum esculentum and Lycopersicum glandulosum by repeated grafting

   • K. Szteyn

   OriginalPaper Pages: 145 - 150

9. Problems in the design of variety trials with spring cabbage

   OriginalPaper Pages: 151 - 156

10. Manihot melanobasis Müll. Arg. — A useful parent for cassava breeding

    • D. L. Jennings

    OriginalPaper Pages: 157 - 162

11. Some experiences with the breeding of pointed-headed cabbage

    • M. Nieuwhof

    OriginalPaper Pages: 163 - 168

12. Chlorophyll inheritance patterns and extent of natural self-pollination in timothy

    • E. L. Nielsen
    • D. C. Smith

    OriginalPaper Pages: 169 - 179

13. Reviews of Books

    BookReview Pages: 180 - 182