1. Plant-parasitic nematodes in the potato growing areas of Maine

   • R. N. Huettel
   • L. J. Francl
   • R. A. Herrn

   OriginalPaper Pages: 345 - 354

2. Correlation of yield and specific gravity in a tetraploid potato tuberling population

   • K. G. Haynes
   • D. R. Wilson

   OriginalPaper Pages: 355 - 362

3. Insect transmission of the bacterial ring rot pathogen

   • R. D. Christie
   • A. C. Sumalde
   • N. C. Gudmestad

   OriginalPaper Pages: 363 - 372

4. An effective method for culturing pollen tubes of potato

   • J. B. Bamberg
   • R. E. Hanneman

   OriginalPaper Pages: 373 - 379

5. Errata

   • Tom ap Rees
   • Susan Morrell

   Erratum Pages: 380 - 380

6. The impact of the mandatory seed law on Maine potato acreage, yield and price

   • J. F. Guenthner
   • E. S. Plissey
   • L. D. Makus

   OriginalPaper Pages: 381 - 390

7. Comparison of two techniques for introgression of unadapted andigena germ plasm into temperate germ plasm

   • O. Furumoto
   • R. L. Plaisted
   • E. E. Ewing

   OriginalPaper Pages: 391 - 404

8. Program of the Seventy-fifth Annual Meeting of The Potato Association of America August 11–August 15, 1991 Cavanaugh’s Inn at the Park Spokane, Washington

   Association Business Pages: 405 - 424