颁布单位：[University of the Free State] |  颁布时间：1999 |  实施时间：1999 |  学科分类：[["Puccinia, hordei","Puccinia, coronata, f., sp., avenae","Puccinia, graminis, f., sp., avenae","Pathogenic, variability","Yield, loss","Barley","Oats","Oats, --, Diseases, and, pests, --, South, Africa","Barley, --, Diseases, and, pests, --, South, Africa","Rust, diseases, --, South, Africa","Dissertation, (M.Sc.Agric., (Plant, Pathology))--University, of, the, Free, State,, 1999"]]

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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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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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颁布单位：[University of Alberta] |  颁布时间：1991 |  实施时间：1991 |  学科分类：[Mosaic, diseases, Wheat--Diseases, and, pests, Virus, diseases, of, plants]

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颁布单位：[University of Alberta] |  颁布时间：1987 |  实施时间：1987 |  学科分类：[Virus, diseases, of, plants, Tomatoes--Diseases, and, pests, Plant, viruses]

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颁布单位：[Stellenbosch University] |  颁布时间：1973 |  实施时间：1973 |  学科分类：[["Grapes, --, Diseases, and, pests, --, South, Africa",, "Virus, diseases, of, plants",, "Viticulture, --, South, Africa",, "Dissertations, --, Plant, pathology",, "Theses, --, Plant, pathology"]]

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