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Showing 10 out of a total of 84 results for collection: Doctoral (PhD) Theses. (0.272 seconds)
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(Lincoln University, 1999)Footrot is one of the most economically important diseases affecting the sheep industry in New Zealand. Losses in production from the disease and expenditure on treatment have been estimated to cost the New Zealand agricultural industry up to 100 million ...
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(Lincoln University, 1996)Clematis vitalba L. is a deciduous perennial climber native to central Europe and southern England which has become a major invasive weed species in New Zealand native forest remnants. In forest remnants, C. vitalba tends to establish in forest gaps, fore ...
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(Lincoln University, 1994)Larvae of Costelytra zealandica (White) have historically been considered as important pests in New Zealand pastures. Control of this species has mainly been based on the green revolution paradigm. In recent years, this paradigm has collapsed leaving beh ...
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(Lincoln University, 1997)The need to improve the operational performance of the Waiau River System, WRS, while avoiding dramatic failure by being risk-averse, became obvious after the 1991/1992 drought when the New Zealand hydro-system and the country energy production system as ...
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(Lincoln University, 1993)Thuringiensin is a novel pesticide that has been evaluated against a range of insects and spider mites. It is generally more effective against immature stages than adults of spider mites, but there is considerable variation in the published data on this a ...
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(Lincoln University, 1998)Fine root length density and coarse root biomass and architecture of tissue cultured clonal and seedling planting materials of Pinus radiata D.Don was estimated in an agroforestry system with understorey treatments (no understorey, Medicago sativa, and Lo ...
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Expression and detection of quantitative resistance to Erysiphe pisi DC. in pea (Pisum sativum L.) (Lincoln University, 1996)Characteristics of quantitative resistance in pea (Pisum sativum L.) to Erysiphe pisi DC, the pathogen causing powdery mildew, were investigated. Cultivars and seedlines of pea expressing quantitative resistance to E. pisi were identified and evaluated, b ...
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(Lincoln University, 1993)A number of experiments, using both field trial and pot trial techniques, were undertaken to investigate the effect of N addition at high rates on the growth and nutrition of radiata pine. Two field trials were designed to investigate the effect of increa ...
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(Lincoln University, 1999)The research problem is defined as how to interpret the impacts of modernity and globalization upon the quality of built environment and its phenomenal effect of "placelessness" of modern humans. The investigation approaches the problem by analogy, focusi ...
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(Lincoln University, 1990)A series of experiments was carried out on cultivated oat (Avena sativa L. cv Amuri) to examine the efficacies of fluazifop-butyl and glyphosate against water stressed plants, plants grown in low and high nitrogen and plants treated with gibberellic aci ...