1. Preface

   • Philippe Boxus

   EditorialNotes Pages: 409 - 409

2. The potato genetic resources held in trust by the International Potato Center (CIP) in Peru

   • Zósimo Huamán
   • Peter Schmiediche

   Full Papers Pages: 413 - 426

3. The conservation of potato cultivars

   • G. Mix-Wagner

   Full Papers Pages: 427 - 436

4. Plant pathogen diagnostics: present status and future developments

   • Kevin J. O'donnell

   Full Papers Pages: 437 - 447

5. Bacterial diseases of potato: relevance to in vitro potato seed production

   • D. Stead

   Full Papers Pages: 449 - 456

6. Soilless production of potato minitubers using a hydroponic technique

   • J. L. Rolot
   • H. Seutin

   Full Papers Pages: 457 - 469

7. Gibberellins and tuberization in potato

   • Dick Vreugdenhil
   • Lidiya I. Sergeeva

   Full Papers Pages: 471 - 481

8. Light and genotype effects on in vitro tuberization of potato plantlets

   • J. Dobránzki
   • K. M. Tábóri
   • A. Ferenczy

   Full Papers Pages: 483 - 488

9. In vitro microtuberization: an evaluation of culture conditions for the production of virus-free seed potatoes

   • C. L. Lê

   Full Papers Pages: 489 - 498

10. In vitro production of potato microtubers in liquid medium using temporary immersion

    • C. Teisson
    • D. Alvard

    Full Papers Pages: 499 - 504

11. Behaviour of plant material issued from in vitro tuberization

    • J. Nowak
    • S. Bensalim
    • A. V. Sturz

    Full Papers Pages: 505 - 519

12. Weaning performance of potato microplants following bacterization and mycorrhization

    • E. M. Duffy
    • E. M. Hurley
    • A. C. Cassells

    Full Papers Pages: 521 - 527

13. New approaches to potato variety identification

    • Robert J. Cooke

    Full Papers Pages: 529 - 539

14. The use of image analysis to study developmental variation in micropropagated potato (Solanum tuberosum L.) plants

    • A. C. Cassells
    • B. Kowalski
    • G. A. Murphy

    Full Papers Pages: 541 - 548

15. PCR analysis of bisulfite-modified DNA to investigate developmental variation in micropropagated potatoes (Solanum tuberosum L.)

    • S. M. Joyce
    • P. Vaughan
    • A. C. Cassells

    Full Papers Pages: 549 - 558

16. Improving the field performance of micro-and minitubers

    • P. C. Struik
    • W. J. M. Lommen

    Full Papers Pages: 559 - 568

17. Production of min-seed tubers using a modular system of plant micropropagation

    • B. S. Ahloowalia

    Full Papers Pages: 569 - 575

18. Disease eradication and propagation of the initial seed potato material in Estonia

    • K. Kotkas
    • V. Rosenberg

    Full Papers Pages: 577 - 583

19. In vitro induction of potato tuberization by organic acids

    • A. M. Pelacho
    • L. Martin-Closas
    • J. L. I. Sanfeliu

    Full Papers Pages: 585 - 591

20. Pilot units of potato seed production in Mali, using in vitro material: micro/minitubers

    • B. Vanderhofstadt

    Full Papers Pages: 593 - 600

21. In vitro tuberisation of potato: the interaction of ancymidol and photoperiod

    • M. Ochotorena
    • I. Santamaria
    • A. M. Mingocastel

    Full Papers Pages: 601 - 606

22. Large scale commercial production of potato minitubers, using in vitro techniques

    • K. Grigoriadou
    • N. Leventakis

    Full Papers Pages: 607 - 610

23. Some sprouting characteristics of microtubers

    • K. M. Tábori
    • J. Dobránszki
    • A. Ferenczy

    Full Papers Pages: 611 - 617

24. Soluble proteins and isoesterases as taxonomic markers tested on nine wildSolanum species and eight Slovakian potato varieties

    • A. Kormut'ák
    • J. Heldák
    • D. Ŝubová

    Full Papers Pages: 619 - 626

25. Reviews

    • Paul Harris
    • P. C. Struik

    BookReview Pages: 627 - 629