颁布单位：[University of the Free State] |  颁布时间：2003 |  实施时间：2003 |  学科分类：[["Crop, yields, --, South, Africa, --, Free, State","Prickly, pears, --, South, Africa, --, Free, State","Dissertation, (M.Sc.Agric., (Grassland, Science))--University, of, the, Free, State,, 2003"]]

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颁布单位：[University of the Free State] |  颁布时间：2003 |  实施时间：2003 |  学科分类：[["Cactus, pear","Water, stress","Taproots","Side, roots","Rain, roots","Root, mass","Root, length","Water-use, efficiency","Root/cladodes, ratio","Root, distribution.","Prickly, pears, --, South, Africa","Roots, (Botany), --, Growth, --, Measurement","Plant-water, relationships","Plant-soil, relationships","Dissertation, (M.Sc.Agric., (Grassland, Science))--University, of, the, Free, State,, 2003"]]

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颁布单位：[University of the Free State] |  颁布时间：2001 |  实施时间：2001 |  学科分类：[["Acacia, mellifera, --, Breeding","Acacia, --, Yields","Multipurpose, trees, --, South, Africa","Dissertation, (M.Sc.Agric., (Grassland, Science))--University, of, the, Free, State,, 2002"]]

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颁布单位：[University of the Free State] |  颁布时间：2001 |  实施时间：2001 |  学科分类：[["Grasses, --, Growth","Grasses, --, Water, requirements","Dissertation, (M.Sc., Agric., (Grassland, Science))--University, of, the, Free, State,, 2001"]]

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