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  • Pathogenic variability and yield losses associated with rust diseases of barley and oats 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：[["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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  • Die invloed van vogstremming tydens verskillende groeistadiums op katoenproduksie
    颁布单位：[University of the Free State] |  颁布时间：1985 |  实施时间：1985 |  学科分类：[["Cotton, --, Diseases, and, pests","Plants, --, Effect, of, temperature, on","Temperature, --, Physiological, effect","Dissertation, (M.Sc.Agric., (Agronomy))--University, of, the, Free, State,, 1985"]]
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