1. František Kühn 1931–1995

   • Karl Hammer
   • Peter Hanelt

   Obituary Pages: v - vi

2. Self-incompatibility reactions in wild species of the genusBeta and their relation to taxonomical classification and geographical origin

   • L. Bruun
   • A. Haldrup
   • W. Lange

   Regular Research Papers Pages: 293 - 301

3. The use of geostatistics for sampling a core collection of perennial ryegrass populations

   • Gilles Charmet
   • François Balfourier

   Regular Research Papers Pages: 303 - 309

4. Variation and phylogeny of the ribosomal DNA unit types and 5 S DNA inPetunia Jussieu

   • Asmâa Kabbaj
   • Fatiha Zeboudj
   • André Bervillé

   Regular Research Papers Pages: 311 - 325

5. Isozyme procedures for the characterization of germplasm, exemplified by the collection ofLolium perenne L.

   • M. D. Hayward
   • G. H. Degenaars
   • F. Eickmeyer

   Regular Research Papers Pages: 327 - 337

6. Collecting spanish populations of the genusAegilops L.

   • Juan Ruíz-Fernández
   • Carlos Casanova
   • Consuelo Soler

   Regular Research Papers Pages: 339 - 345

7. Biochemical and cytological analyses in natural populations ofVicia benghalensis L.

   • Angela Rosa Piergiovanni
   • Incoronata Galasso
   • Domenico Pignone

   Regular research papers Pages: 347 - 352

8. Chromosome numbers in theMalus wild species collection of the genebank Dresden-Pillnitz

   • Mirko Schuster
   • Rolf Büttner

   Regular research papers Pages: 353 - 361

9. Genetic relationships of Portuguese coles and other close relatedBrassica genotypes using nuclear RFLPs

   • João S. Dias

   Regular research papers Pages: 363 - 369

10. Sources of resistance to bacterial blight of stock (Matthiola incana R. Br.)

    • R. Ecker
    • D. Zutra
    • D. Rav-David

    Regular research paper Pages: 371 - 372

11. Variation and phylogeny of the triploid cultivated potatoSolanum chaucha Juz. et Buk. based on RAPD and isozyme markers

    • Pedro L. Cisneros
    • Carlos F. Quiros

    Regular research paper Pages: 373 - 386

12. Natural and human selection for purple-grain tetraploid wheats in the Ethiopian highlands

    • Getachew Belay
    • T. Tesemma
    • D. Mitiku

    Regular research papers Pages: 387 - 391

13. Variation among maize (Zea mays L.) accessions of Bendel State, Nigeria

    • J. E. Alika
    • M. E. Aken'Ova
    • C. A. Fatokun

    Regular research paper Pages: 393 - 399

14. Book reviews

    • E. Frison
    • Fritz Matzk

    BookReview Pages: 401 - 401

15. Editorial note

    EditorialNotes Pages: 403 - 403