2005 Potato Variety Trials in the Matanuska Valley, Alaska

Abstract

Twenty-two potato varieties were grown under irrigation at the AFES Palmer Research and Extension Center. The trial contained red, white, and russet-skinned varieties. The late-season rains provided ideal conditions for late blight (Phytopthora infestans), which appeared in the Matanuska Valley in mid August. Late blight affected the tubers leading to a reduction in marketable potatoes in many varieties.