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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

The effect of resource dynamics on invasive annual and native perennial grasses in grasslands of the mid-north of South Australia /

Lenz, Tanja. January 2004 (has links) (PDF)
Thesis (Ph.D.)--University of Adelaide, School of Earth and Environmental Sciences, Discipline of Environmental Biology, 2004. / "July 2004." Bibliography: leaves 120-136.
2

The response of vegetation to chemical and hydrological gradients in the IMI fen, Henry County, Indiana

Hess, Benjamin Robert. January 2009 (has links)
Thesis (M.S.)--Ball State University, 2009. / Title from PDF t.p. (viewed on Nov. 30, 2009). Includes bibliographical references (p. [42]-45).
3

A quantitative measure of the effect of the soil moisture and atmospheric moisture on the growth of trees

Mace, Arnett C. January 1962 (has links) (PDF)
Thesis (M.S. - Watershed Management)--University of Arizona. / Includes bibliographical references.
4

Internal pressurisation and convective flow in two species of emergent macrophyte; Typha domingensis and Phragmites australis /

White, Sean D. January 1999 (has links) (PDF)
Thesis (Ph.D.), University of Adelaide, Dept. of Botany, 1999. / Bibliography: p. 171-181.
5

Lucerne (Medicago sativa) productivity and its effect on the water balance in southern Western Australia /

Dolling, P. J. January 2006 (has links)
Thesis (Ph.D.)--University of Western Australia, 2006.
6

The effects of water and shade treatments on photosynthesis and root-rhizosphere respiration in young ponderosa pine /

Johnson, Theresa J. January 1900 (has links)
Thesis (M.S.)--Oregon State University, 2006. / Printout. Includes bibliographical references. Also available on the World Wide Web.
7

Physiological responses of ornamental ground covers to water stress

Ghiblawi, Amer Shaban. January 1983 (has links)
The effect of water stress on the growth, landscape performance, and plant-water relations of four ornamental ground cover species (gray santolina, Santolina chamaecyparissus; dwarf rosemary, Rosemarinus officinalis; Chihuahuan Desert lantana, Lantana velutina; and prostrate germander, Teucrium chamaedrys) was investigated for a twoyear period. Plants were established in a drip irrigated field and subjected to four soil moisture regimes (-1, -5, -10, and -15 bars), monitored by neutron probe. While water stress reduced vegetative covers, shoot growths, heights, and fresh and dry weights of the plants, species response to water deficit varied greatly. Minimum amounts of water required for growing each species were determined. Germander was found to be the most drought tolerant, followed by santolina, rosemary, and lantana in decreasing order. In earlier treatment period, adequately watered plants showed better aesthetic appeal and landscape performance than the plants grown under a high soil moisture tension. However, the effect of water stress on plants' landscape performance was less evident as plants became more established. In all species tested, with an exception of germander, leaf water, osmotic, and turgor potentials of nonstressed plants were higher than those of severely stressed plants. Using the pressure-volume technique, apoplastic water was found to contribute a significant proportion of the total tissue water content. The dilution of symplastic water by apoplastic water during osmotic potential determinations was found to be the major cause of the frequently observed negative turgidity. Methods for correcting for these apoplastic dilution effects were suggested. Osmotic potentials at full and zero turgor, symplastic water contents, changes in water, osmotic, and turgor potentials relative to changes in cell water content (Blifler diagrams), and cell wall elasticity varied significantly with species and treatments. Water stress caused a reduction in total chlorophyll and carotenoids concentrations and in the chlorophyll/ carotenoids ratio, without changing chlorophyll a/chlorophyll b ratio in plant tissues. Leaf reflectances to incident light as measured at 400 to 700 nm were found to differ substantially by species but not by treatments. No consistent correlations were found to exist between leaf pigment content and each of dominant wavelength, brightness, and the purity of leaf color.
8

Migration and plant uptake of radionuclides in laboratory soil columns and field lysimeter with contaminated water tables

Hu, Qing January 1998 (has links)
No description available.
9

Water use, ecophysiology, and hydraulic architecture of Eucalyptus marginata (jarrah) growing on mine rehabilitation sites in the jarrah forest of south-western Australia

Bleby, Timothy Michael. January 2003 (has links)
Thesis (Ph. D.)--University of Western Australia, 2003. / Title from PDF title page (viewed on July 9, 2005). Includes bibliographical references.
10

Transpiration and conductance responses of salt-desert vegetaion in the Owens Valley of California in relation to climate and soil moisture

Warren, Daniel Cram. January 1991 (has links)
Thesis (Ph. D.)--University of Arizona, 1991. / Includes bibliographical references (249-258 p. ).

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