1. Germination of Tagetes minuta L. II. Role of gibberellins

   • F. E. Drewes
   • J. Van Staden

   OriginalPaper Pages: 285 - 291

2. Improvement of postharvest keeping quality of ‘Mercedes’ roses by gibberellin

   • D. M. Goszczynska
   • N. Zieslin
   • A. H. Halevy

   OriginalPaper Pages: 293 - 303

3. Solid-phase extraction of cytokinins from aqueous solutions with C₁₈ cartridges and their use in a rapid purification procedure

   • Gene Guinn
   • Donald L. Brummett

   OriginalPaper Pages: 305 - 314

4. Identification of the metabolites of Indole-3-acetic acid in growing hypocotyls of Lupinus albus

   • J. Sánchez-Bravo
   • A. Ortuño
   • F. Sabater

   OriginalPaper Pages: 315 - 327

5. Promotion of elongation and acid invertase activity in Phaseolus vulgaris L. internode segments by phenylacetic acid

   • David K. Small
   • David A. Morris

   OriginalPaper Pages: 329 - 340

6. Initiation and culture of potato tuber callus tissue with picloram

   • Steven R. Hagen
   • Duane LeTourneau
   • Janice Brown

   Short Communication Pages: 341 - 345

7. Viruses with fungal vectors

   Book Review Pages: 347 - 347

8. Ontogeny, cell differentiation, and structure of vascular plants.

   Book Review Pages: 348 - 349

9. Microbial inoculation of crop plants

   Book Review Pages: 350 - 352

10. Immunocytochemistry-Modern methods and applications

    Book Review Pages: 352 - 352

11. The ‘greenhouse effect’ and UK agriculture

    Book Review Pages: 353 - 354

12. Progress in botany

    Book Review Pages: 354 - 355

13. Biological interactions in soil

    Book Review Pages: 356 - 358

14. Gases in plant and microbial cells

    Book Review Pages: 358 - 361

15. Nitrogen fixation with non-legumes

    Book Review Pages: 361 - 362

16. Root development and function

    Book Review Pages: 363 - 364