Author : W. J. Hooker
Publisher : International Potato Center
Page : 156 pages
File Size : 23,24 MB
Release : 1981
Category : Cooking
ISBN : 9780890540275
Disease in the absence of infectious pathogens. Genetic abnormalities. Adverse environment. Nutrient imbalance. Disease in the presence of infectious pathogens. Fungi. Viruses. Mycoplasmas. Insect toxins. Nematodes. Aphids. Seed potato certification.