1. Geographical distribution of genes causing hybrid necrosis in wheat

   • A. C. Zeven

   OriginalPaper Pages: 281 - 284

2. The enigma of triploid potatoes

   • G. E. Marks

   OriginalPaper Pages: 285 - 290

3. Some remarks on the polycross test method applied in grasses

   • J. W. Lackamp

   OriginalPaper Pages: 291 - 296

4. Effects of temperature pre-treatments on the forcing of strawberry plants (cv. Glasa)

   • C. P. A. Iyer
   • L. Smeets

   OriginalPaper Pages: 297 - 303

5. The propagation of highbush blueberries by softwood cuttings

   • J. Douglas

   OriginalPaper Pages: 304 - 312

6. Isolation of complementary genes conditioning crown rust resistance in the oat variety Bond

   • E. P. Baker

   OriginalPaper Pages: 313 - 318

7. The Mendel centenary celebrations

   OriginalPaper Pages: 319 - 322

8. Searching gene centers of the genus Cucumis through host-parasite relationship

   • E. E. Leppik

   OriginalPaper Pages: 323 - 328

9. The physiological control of F₁ grass-dwarfs in Triticum aestivum L.

   • K. Moore

   OriginalPaper Pages: 329 - 347

10. A technique of screening tuber-bearing Solanums for resistance to the root knot nematode

    • K. K. Nirula
    • Pushkarnath

    OriginalPaper Pages: 348 - 352

11. Problems in breeding the legume Indigofera spicata for tropical pastures

    • E. M. Hutton
    • J. Guerassimoff

    OriginalPaper Pages: 353 - 361

12. Inheritance of gibberellin induced heterostyly in the tomato

    • S. Honma
    • M. J. Bukovac

    OriginalPaper Pages: 362 - 364

13. The effect of intensity of selection during successive generations of seed multiplication, on the field performance of Brussels sprouts

    • A. G. Johnson
    • J. C. Haigh

    OriginalPaper Pages: 365 - 373

14. A technique for controlled pollination in the production of grass seed

    • R. Knight

    BriefCommunication Pages: 374 - 376

15. A diallel analysis of solids in tomatoes

    • A. K. Stoner
    • A. E. Thompson

    OriginalPaper Pages: 377 - 382

16. Studies on jassid resistance in relation to hairiness of cotton leaves

    • S. M. Sikka
    • V. M. Sahni
    • Dhamo K. Butani

    OriginalPaper Pages: 383 - 388

17. Glossy-leaf in collard (Brassica oleracea L. var. Acephala D.C.): An incomplete dominant

    • W. Greta Priestley
    • A. B. Wills

    OriginalPaper Pages: 389 - 394

18. A new tomato rootstock seed parent

    • J. W. Maxon Smith

    OriginalPaper Pages: 395 - 403

19. Post-pollen-germination barriers to seed set in sweet-potato

    • F. W. Martin
    • E. Cabanillas

    OriginalPaper Pages: 404 - 411

20. The mutual independence of M₁-fertility and mutant yield in EMS treated tomatoes

    • G. J. Hildering
    • J. H. van der Veen

    OriginalPaper Pages: 412 - 424

21. Genetical studies in pears V. Red mutants

    • A. G. Brown

    OriginalPaper Pages: 425 - 429

22. Reviews of books

    BookReview Pages: 430 - 431

23. Note

    Announcement Pages: 432 - IN4

24. News items

    Announcement Pages: 433 - 434