已收录 272918 条政策
检索结果
已选条件:
and

<符合条件的数据共:87条>
排序方式
登录后可批量下载(统一登录激活码登录)

  • 颁布单位:[University of the Free State] |  颁布时间:2002 |  实施时间:2002 |  学科分类:[["Urban, impoundment","Eutrophication","Physical, and, chemical, parameters","Nutrients","Seasonal, cycles","Diel, changes","Algae","Blooms, and, management","Lake, ecology, --, South, Africa, --, Bloemfontein","Surface, impoundments, --, Environmental, aspects, --, South, Africa, --, Bloemfontein","Dissertation, (M.Sc., (Plant, Sciences))--University, of, the, Free, State,, 2002","Water, resources, management"]]
    预览  |  原文链接    [浏览:3 下载:0]
  • 颁布单位:[University of the Free State] |  颁布时间:2002 |  实施时间:2002 |  学科分类:[["Kenaf, (Hibiscus, cannabinus, L.)","Kenaf, --, Diseases, and, pests, --, South, Africa","Cotton, --, Diseases, and, pests, --, Control, --, South, Africa","Dissertation, (M.Sc.Agric., (Plant, Sciences))--University, of, the, Free, State,, 2002"]]
    预览  |  原文链接    [浏览:4 下载:0]
  • 颁布单位:[University of the Free State] |  颁布时间:2001 |  实施时间:2001 |  学科分类:[["Corn, --, Diseases, and, pests, --, South, Africa","Plant-pathogen, relationships, --, South, Africa","Dissertation, (M.Sc.Agric., (Plant, Pathology))--University, of, the, Free, State,, 2002"]]
    预览  |  原文链接    [浏览:0 下载:0]
  • 颁布单位:[University of the Free State] |  颁布时间:2001 |  实施时间:2001 |  学科分类:[["Disease, measurement","Ear, rot","Inheritance","Maturity","StenocarpelIa, maydis","Zea, mays","Corn, --, Genetics, --, South, Africa","Corn, --, Disease, and, pest, resistance, --, Genetic, aspects","Dissertation, (M.Sc.Agric., (Plant, Breeding))--University, of, the, Free, State,, 2001"]]
    预览  |  原文链接    [浏览:0 下载:0]
  • 颁布单位:[University of the Free State] |  颁布时间:2001 |  实施时间:2001 |  学科分类:[["Sclerotium, rolfsii","Southern, stem, rot","Population","Mycelial, compatibility, groups","AFLP, analysis","Pathogenicity","Control","Inversion, plough","Integrated, pest, management","Peanuts, --, South, Africa, --, Diseases, and, pests","Thesis, (Ph.D., (Plant, Pathology))--University, of, the, Free, State,, 2001"]]
    预览  |  原文链接    [浏览:0 下载:0]
  • 颁布单位:[University of the Free State] |  颁布时间:2001 |  实施时间:2001 |  学科分类:[["Corn, --, Genetics, --, South, Africa","Corn, --, Disease, and, pest, resistance, --, Genetic, aspects","Corn, root, rot","Dissertation, (M.Sc.(Agric., (Plant, Breeding))--University, of, the, Free, State,, 2001"]]
    预览  |  原文链接    [浏览:0 下载:0]
  • 颁布单位:[University of the Free State] |  颁布时间:2001 |  实施时间:2001 |  学科分类:[["Stem, borers","Corn, --, Disease, and, pest, resistance","Thesis, (Ph.D., (Plant, Breeding))--University, of, the, Free, State,, 2001"]]
    预览  |  原文链接    [浏览:3 下载:0]
  • 颁布单位:[University of the Free State] |  颁布时间:2000 |  实施时间:2000 |  学科分类:[["Eyespot, (Plant, disease)","Wheat, --, Breeding","Wheat, --, Disease, and, pest, resistance","Dissertation(M.Sc.Agric., (Plant, Breeding, and, Botany, and, Genetics))--University, of, the, Free, State,, 2000"]]
    预览  |  原文链接    [浏览:0 下载:0]
  • 颁布单位:[University of the Free State] |  颁布时间:2000 |  实施时间:2000 |  学科分类:[["Puccinia, striiformis","Puccinia, triticina","Stripe, rust","Leaf, rust","Pathotypes","Cultivar, resistance","Chemical, control","Seed, treatment","Leaves, --, Diseases, and, pests","Wheat, rusts","Agricultural, chemicals, --, Foliar, application","Thesis, (Ph.D., (Plant, Pathology))--University, of, the, Free, State,, 2001"]]
    预览  |  原文链接    [浏览:0 下载:0]
  • 颁布单位:[University of the Free State] |  颁布时间:2000 |  实施时间:2000 |  学科分类:[["Corn, --, Diseases, and, pests, --, South, Africa","Corn, --, Disease, and, pest, resistance, --, Genetic, aspects","Dissertation, (M.Sc.Agric., (Plant, Breeding))--University, of, the, Free, State,, 2000"]]
    预览  |  原文链接    [浏览:0 下载:0]