1. The Plant Breeding Institute and the activities of private plant breeders in the Netherlands

   OriginalPaper Pages: 121 - 121

2. The localization of two genes for dwarfing in the wheat. Variety Timstein by means of substitution lines

   • J. G. Th. Hermsen

   OriginalPaper Pages: 126 - 129

3. The history of the Plant Breeding Institute I.v.P. 1912–1962

   • H. de Haan

   OriginalPaper Pages: 130 - 136

4. Selection of carrots for carotene content

   • O. Banga
   • J. W. de Bruyn
   • H. A. van Keulen

   OriginalPaper Pages: 137 - 146

5. Sources and distribution of the complementary genes for hybrid necrosis in wheat

   • J. G. Th. Hermsen

   OriginalPaper Pages: 147 - 160

6. Cytology of Phleum sp. affin. P. montanum C. Koch

   • J. Nath
   • E. L. Nielsen

   OriginalPaper Pages: 161 - 166

7. The processing of coconut pollen

   • R. A. Whitehead

   OriginalPaper Pages: 167 - 177

8. Problems in breeding and cytology of sugar cane

   • G. Bremer

   OriginalPaper Pages: 178 - 188

9. Hybrid breeding in early spring cabbage

   • M. Nieuwhof

   OriginalPaper Pages: 189 - 197

10. Inbreeding and hybrid production in marrow-stem kale (Brassica oleracea L. Var. Acephala D.C.)

    • T. D. Johnston

    OriginalPaper Pages: 198 - 204

11. Plant breeding systems

    • C. F. Andrus

    ReviewPaper Pages: 205 - 228

12. Some evidence on the genetic structure of present-day raspberry varieties and some possible implications for further breeding

    • D. L. Jennings

    OriginalPaper Pages: 229 - 243

13. Reviews of books

    BookReview Pages: 243 - 243

14. Errata

    Erratum Pages: 244 - 244