Resistance of potato clones to the green peach aphid and potato leafroll virus David MndolwaGuy BishopJoseph Pavek OriginalPaper Pages: 713 - 722
Potato clone variation in blackspot and soft rot susceptibility, redox potential, ascorbic acid, dry matter and potassium M. WorkmanD. G. Holm OriginalPaper Pages: 723 - 733
Thermotherapy and tissue culture for elimination of potato virus X (PVX) in Mexican potato cultivars resistant to late blight H. Lozoya-SaldaƱaO. Merlin-Lara OriginalPaper Pages: 735 - 739
Evidence for a relationship between certain soil arthropods and acid scab development F. E. ManzerR. H. StorchG. H. Sewell OriginalPaper Pages: 741 - 746