Frequency and mechanisms of 2n egg formation in haploid tuberosum-wild species F1 hybrids Joanna E. WernerS. J. Peloquin OriginalPaper Pages: 641 - 654
Genetic transmission of potato leafhopper resistance from recurrent selection populations in potatoSolanum tuberosum L. Gp. tuberosum L. L. SanfordT. L. Ladd OriginalPaper Pages: 655 - 662
Factors affecting infection, disease development, and symptom expression of bacterial ring rot F. E. ManzerN. C. GudmestadG. A. Nelson OriginalPaper Pages: 671 - 676
Certification policies and practices in reference to bacterial ring rot Oscar Gutbrod OriginalPaper Pages: 677 - 681
The relationship between bacterial ring rot and North American seed potato export markets S. H. De Boer OriginalPaper Pages: 683 - 694
Recommendations of the National Task Force for the eradication of bacterial ring rot Neil C. Gudmestad OriginalPaper Pages: 695 - 697
Abstracts of additional papers presented Steven A. SlackAndrew L. BishopN. C. Gudmestad Abstract Pages: 699 - 702
Final call for Graduate Student Papers for the 72nd Annual Meeting of PAA Association Business Pages: 704 - 705