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  • Die verband tussen deelname aan ekstrakurrikulêre aktiwiteite en psigiese welstand tydens adolessensie
    颁布单位：[University of the Free State] |  颁布时间：2003 |  实施时间：2003 |  学科分类：[["Dissertation, (M.A., (Counselling, Psychology))--University, of, the, Free, State,, 2003","Teenagers, --, Mental, health","High, school, student, activities","Academic, achievement, --, Effect, of, student, activities, on","High, school, students, --, Social, conditions","Extracurricular, activities","Psychological, well, being","Sense, of, coherence","Satisfaction, with, life","Socio-economic, status","Black, adolescents","Both, sexes"]]
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  • Field measurement of temperature and leaf growth on maize/bean inter-crop
    颁布单位：[University of the Free State] |  颁布时间：2001 |  实施时间：2001 |  学科分类：[["Planting, date","Thermal, time","Richards, function","Leaf, length","Leaf, number","Optimum, temperature","Leaf, growth, curves","Leaf, extension, rate, (LER)","Auxanometer","Leaf, temperature","Intercropping","Leaves, --, Growth","Corn, --, Effect, of, temperature, on","Legumes, --, Effect, of, temperature, on","Dissertation, (M.Sc.Agric., (Agrometeorology))--University, of, the, Free, State,, 2001"]]
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  • The characterisation of South African and Ethiopian bread and durum wheat cultivars for drought stress tolerance
    颁布单位：[University of the Free State] |  颁布时间：2001 |  实施时间：2001 |  学科分类：[["Durum, wheat, --, Water, requirements","Durum, wheat, --, Effect, of, drought, on","Durum, wheat","Dissertation, (M.Sc.Agric., (Plant, Breeding))--University, of, the, Free, State,, 2001"]]
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  • Micrometeorology and physiology of sugarcane crop during water stress
    颁布单位：[University of the Free State] |  颁布时间：2001 |  实施时间：2001 |  学科分类：[["Sugarcane, --, Effect, of, drought, on","Sugarcane, --, Water, requirements","Sugarcane, --, Climatic, factors","Dissertation, (M.Sc.Agric., (Agrometeorology))--University, of, the, Free, State,, 2002"]]
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  • Influence of drought stress after anthesis on growth and yield of wheat cultivars from Ethiopia
    颁布单位：[University of the Free State] |  颁布时间：2001 |  实施时间：2001 |  学科分类：[["Wheat, --, Ethiopia, --, Water, requirements","Plant-water, relationships, --, Ethiopia","Wheat, --, Effect, of, drought, on","Dissertation, (M.Sc.Agric., (Agronomy, and, Plant, Breeding))--University, of, the, Free, State,, 2001"]]
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  • Studies on genotypic variability and inheritance of waterlogging tolerance in wheat
    颁布单位：[University of the Free State] |  颁布时间：2001 |  实施时间：2001 |  学科分类：[["Plants, --, Effect, of, soil, moisture, on","Plant-water, relationships","Crops, --, Effect, of, drainage, on","Wheat, --, Breeding, --, Ethiopia","Thesis, (Ph.D., (Plant, Breeding))--University, of, the, Free, State,, 2001"]]
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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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  • Temperatuurstudie van die Oranjeriviergebied met die oog op gewasverbouing
    颁布单位：[University of the Free State] |  颁布时间：1971 |  实施时间：1971 |  学科分类：[["Plants,, Cultivated","Plants,, Cultivated, --, Free, State","Plants, --, Effect, of, hail, on","Harvest, and, climate","Dissertation, (M.Sc.Agric., (Agricultural, Sciences))--University, of, the, Free, State,, 1971"]]
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