Browsing Doctoral (PhD) Theses by Title

Now showing items 68-87 of 694

Calcium homeostasis in lens transparency and the involvement of calpains in cataract

Lee, Hannah Y. (Lincoln University, Christchurch, 2006)

The absolute clarity of the lens of the eye is vital in the visual system. The unique structural and physiological properties of the lens are tightly integrated with highly ordered protein content to allow the lens to ...
Carbonaceous soil amendments to reduce plant uptake of Cd in NZ’s agricultural systems

Mamun, Shamim Al (Lincoln University, 2017-03-06)

Cadmium (Cd) is a non‐essential trace element that accumulates in agricultural soils through the application of Cd-rich phosphate fertiliser and industrial activity. Plants can accumulate Cd to concentrations that sometimes ...
Carotenoid pigmentation of chinook salmon (Oncorhynchus tshawytscha)

Bird, J. N. (Lincoln University, 1992)

Carotenoid pigmentation of chinook salmon under commercial conditions was investigated in a series of experiments carried out in fresh water and salt water. The carotenoid composition of salmonids and factors regulating ...
Causes of elevated coumestrol in lucerne and mitigation of the subsequent risk to ewe reproductive performance

Fields, Rachel Lilian (Lincoln University, 2017)

Coumestrol in lucerne can reduce the ovulation rate of ewes, which lowers lambing rates. This thesis isolated the factors with potential to increase the coumestrol levels of lucerne. The management of ewes during the mating ...
Cell selection, characterization and regeneration of chlorsulfuron-resistant variants in asparagus

Ganeshan Dharshini (Lincoln University, 1999)

This thesis reports the cell culture establishment and a somatic cell selection system optimized for the isolation of chlorsulfuron-resistant variants in asparagus (Asparagus officinalis L.). The development of this cell ...
The cell wall structure of Selenomonas ruminantium

Yandle, Timothy G. (Lincoln College, University of Canterbury, 1979)

The cell wall structure of Selenomonas ruminantium subsp. lactilytica Str GA192 and subsp. ruminantium Str PC18 was examined. Whole cell walls of strain GA192 contained: - 11% total carbohydrate; 1% phosphorus; rhamnose; ...
CEO option incentives, firm risk-taking and shareholder value: evidence from Australia

Bian, Chao (Lincoln University, 2016-05-12)

This study aims at examining the effects of Chief Executive Officers’ (CEOs) option incentives on corporate risk-taking and share market performance based on a panel data set drawn from the 137 largest (by market capitalisation) ...
Changes in soil structure under different cropping systems

Gibbs, R. J. (Lincoln College, University of Canterbury, 1986)

Despite a large number of experimental investigations, it remains difficult to predict, or even interpret, changes in soil structure under different cropping systems. The principal objective of this investigation was to ...
Characterisation of genes associated with sheep growth and carcass traits

Yang, Guo (Lincoln University, 2014)

Animal growth and carcass composition are of commercial importance for sheep meat production. Growth and fat deposition are affected by both environmental factors and genetic factors. Genetic selection to produce leaner, ...
Characterisation of Keratin-associated protein genes associated with wool traits

Gong, Hua (Lincoln University, 2015)

Wool has unique attributes, but to compete with synthetics, the wool industry is looking for ways to improve their product. The use of gene-markers is one of improving the selection of genetically superior stock. The ...
Characterisation of rhizobia and studies on N₂ fixation of common weed legumes in New Zealand

Liu, Wendy Ying Ying (Lincoln University, 2014)

Most legume species can fix atmospheric N₂ via symbiotic bacteria (collectively termed rhizobia) in nodules on their roots, thus allowing them to colonise marginal land with low soil N availability. Over the last 150 years, ...
Characterisation of rhizobia associated with New Zealand native legumes (Fabaceae) and a study of nitrogen assimilation in Sophora microphylla

Tan, Heng Wee (Lincoln University, 2014)

Many legume species have the capacity to fix atmospheric N₂ via symbiotic bacteria (generally termed “rhizobia”) in root nodules and this can give them an advantage under low soil N conditions if other factors are favourable ...
Characterising genetic loci associated with loss of apomixis in Hieracium

Catanach, Andrew S. (Lincoln University, Christchurch, 2007)

Most plant species strictly utilise sexual reproduction to generate genetically diverse seed to ensure adaptation of their descendents to the changing demands of their environment. Some species, however, have largely ...
Characterising sub-species variation in New Zealand Cylindrocarpon species that cause black foot of grapevines

Pathrose, Blessy (Lincoln University, 2012)

Black foot disease, caused by species of Cylindrocarpon, is a significant problem in New Zealand and throughout the world. From a 2005 study of symptomatic grapevine material contributed by 49 grape growers encompassing ...
Characterization of regional examples of New Zealand Pinot noir by means of sensory and chemical analysis

Tomasino Elizabeth (Lincoln University, 2011)

There are four main Pinot noir wine regions in New Zealand: Central Otago, Marlborough, Martinborough and Waipara. These regions specialize in this variety as the soil, climate and other conditions are well suited to this ...
Chemical and mineralogical properties of a sequence of terrace soils near Reefton, New Zealand

Campbell, Alistair Shand (Lincoln College, University of Canterbury, 1975)

Changes brought about by chemical and physical weathering were investigated in a chronosequence of terrace soils near Reefton, New Zealand. The parent materials of the soil, which ranged in age from about 1000 to over ...
Chemical and toxicological investigation of the toxic dinoflagellate, Karenia brevisulcata

Shi, Feng (Lincoln University, Lincoln, 2012)

A severe harmful algal bloom (HAB) devastated marine life in the Wellington Harbour in the late summer 1998. A novel species of Karenia dinoflagellates was isolated from this HAB and named Karenia brevisulcata (Chang). ...
Chemical nature and plant availability of phosphorus present in soils under long-term fertilised irrigated pastures in Canterbury, New Zealand

Condron, Leo M. (Lincoln College, University of Canterbury, 1986)

Soil P fractionation was used to examine changes in soil inorganic and organic P under grazed irrigated pasture in a long-term field trial at Winchmore in Mid-Canterbury. The soil P fractionation scheme used involved ...
A chronosequence of soils near the Franz Josef Glacier

Stevens, Peter R. (Lincoln College, University of Canterbury, 1968)

One method of studying the effects of Time as a Soil Forming Factor is the recognition and investigation of a Chronosequence, wherein four of the five Soil Forming Factors are kept constant or ineffectively varying. Thus, ...
Clean and green? Environmental quality on the New Zealand dairy farm

Menzies, Diane (Lincoln University, 1999)

This study explores issues arising from the adoption of the term 'clean and green' for marketing New Zealand dairy products. Three dimensions of environmental quality were investigated: that of sustainable dairying and ...

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