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  • Genetic variability of tolerance to freezing in South African wheat cultivars
    颁布单位：[University of the Free State] |  颁布时间：1999 |  实施时间：1999 |  学科分类：[["Tolerance, to, freezing","Artificial, freezing","Survival","Leaf, length","Root, length","Variability","Combining, ability","Inheritance","Electrophoresis","High, molecular, weight, proteins","Cold-tolerant, plants, --, South, Africa","Wheat, --, Breeding, --, South, Africa","Thesis, (Ph.D., (Plant, Breeding))--University, of, the, Free, State,, 1999"]]
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  • Fusarium dry rot of potatoes: etiology, epidemiology, toxicity and control
    颁布单位：[University of the Free State] |  颁布时间：1999 |  实施时间：1999 |  学科分类：[["Fusarium, --, South, Africa","Fungal, diseases, of, plants, --, South, Africa","Potato, --, Diseases, and, pests, --, South, Africa","Thesis, (Ph.D., (Plant, Pathology))--University, of, the, Free, State,, 1999"]]
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  • Oomycetes associated with citrus and eucalypts root rot in South Africa
    颁布单位：[University of the Free State] |  颁布时间：1999 |  实施时间：1999 |  学科分类：[["Eucalyptus, --, Diseases, and, pests, --, South, Africa","Citrus, --, Diseases, and, pests, --, South, Africa","Fungal, diseases, of, plants, --, South, Africa","Pythium","Phytophthora","Dissertation, (M.Sc., (Microbiology, and, Biochemistry))--University, of, the, Free, State,, 1999"]]
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