1. Extreme resistance to infection by potato virus Y and potato virus X in an advanced hybridSolanum phureja — S. Stenotomum diploid potato population

   • Roger L. Vallejo
   • Wanda W. Collins
   • J. B. Young

   OriginalPaper Pages: 617 - 628

2. Inheritance of potato chip color at the 24-chromosome level

   • Christian A. Thill
   • Stanley J. Peloquin

   OriginalPaper Pages: 629 - 646

3. Ecological risk of growing transgenic potatoes in the United States and Canada

   • Stephen L. Love

   News & Reviews Pages: 647 - 658

4. Abstracts

   Association Business Pages: 659 - 713