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The influence of time and path of supply of nitrogen on the growthresponse of wheat (Triticum aestivum L).Lungley, David Rolfe. January 1974 (has links) (PDF)
Thesis (Ph.D. 1974) from the Dept. of Agronomy, University of Adelaide.
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Transpiration of wheat seedlings as affected by soils, by solutions of different densities, and by various chemical compounds ...Bouyoucos, George J. January 1911 (has links)
Thesis (Ph. D.)--Cornell University, 1911. / Cover title. "Reprinted from the Proceedings of the American Society of Agronomy, vol. 3, 1911." "Contribution from the Department of Soil Technology, Cornell University." Bibliography: p. 190-191.
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Physiological studies on sterility induced in wheat by heat and water deficit /Saini, Hargurdeep Singh. January 1982 (has links) (PDF)
Thesis (Ph.D.) -- University of Adelaide, Dept. of Plant Physiology, 1982? / Typescript (photocopy).
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Physiological and biochemical responses to elevated temperatures influencing grain weight in wheat /Bhullar, Sukhdev Singh. January 1984 (has links) (PDF)
Thesis (Ph. D.)--University of Adelaide, Dept. of Plant Physiology, 1985. / Includes bibliographical references (leaves 216-237).
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Influence of N and P nutrition on the responses of wheat and cotton to elevated CO2 /Rogers, Gordon Stephen. January 1996 (has links)
Thesis (Ph. D.)--University of Western Sydney, Hawkesbury, 1996. / Includes bibliographical references (p. 165-187).
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Characterisation of a 4BS.4BL-5RL wheat rye translocation to improve copper efficiency of bread wheatLeach, Richard Charles January 2004 (has links)
Copper deficiency causes significant annual losses in grain yield due to poor grain set. Cereals such as wheat and barley are particularly susceptible to low copper soils whereas,crops such as rye and triticale are better able to grow and yield under such conditions of nutrient stress. The ability of rye and triticale, which carries a complete set of rye chromosomes, to tolerate low copper conditions has been attributed to a gene on rye chromosome 5R. Wheat-rye translocation lines have previously been produced carrying segments of the long arm of chromosome 5 of rye (5RL). Although these lines have expressed copper efficiency in University of Adelaide trials, until now they have been considered agronomically inferior and so have not been used as commercial cultivars. The physical size of rye segment of the 4BS.4BL-5RL translocation in a Chinese Spring background derived from the Cornell Wheat Selection 82a1-2-4-7 was measured using GISH (genomic in situ hybridization) and found to be 16% of the long arm. The size of this translocation was similar to GISH measurements of another 4BS.4BL-5RL translocation in Viking wheat background, although both these lines arose spontaneously and at different times. Molecular maps of both 4BS.4BL-5RL translocations in the two different wheat backgrounds were developed and used to screen for rare recombinants between wheat and rye in a background homozygous for the Sears' ph1b mutant. The maps revealed the approximate genetic location of the translocation breakpoint involved in these two 4BS.4BL-5RL translocations to be similar even though they are known to have arisen at different times and in different experimental populations. The similarity of these translocations suggests a unique property of the region at or near the translocation breakpoint that could be responsible for their similarity and spontaneous formation. After screening 703 critical seedlings for evidence of recombination between the 5RL segment and wheat homoeologues, no confirmed recombinants were identified. Lines containing the 4BS.4BL-5RL translocation were shown to yield equally as well as their recurrent parent under normal field conditions. In addition the presence of the 4BS.4BL-5RL had no adverse effects on a range of grain quality characteristics measured in these lines. A pot trial using lines derived from a cross between the CSHN translocation and the wheat cultivar Warigal (five backcrosses) revealed that they provided copper-efficiency even under the severest of deficiency conditions. While the results of this pot trial did not show the outstanding copper efficiency previously observed in these lines, the translocation did consistently out yield the recurrent parent under severe copper deficiency conditions. Finally, a reliable PCR marker was developed for the rapid identification of lines containing the distal portion of the 5RL chromosome. / Thesis (Ph.D.)--School of Agriculture and Wine, 2004.
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Characterisation of a 4BS.4BL-5RL wheat rye translocation to improve copper efficiency of bread wheatLeach, Richard Charles January 2004 (has links)
Copper deficiency causes significant annual losses in grain yield due to poor grain set. Cereals such as wheat and barley are particularly susceptible to low copper soils whereas,crops such as rye and triticale are better able to grow and yield under such conditions of nutrient stress. The ability of rye and triticale, which carries a complete set of rye chromosomes, to tolerate low copper conditions has been attributed to a gene on rye chromosome 5R. Wheat-rye translocation lines have previously been produced carrying segments of the long arm of chromosome 5 of rye (5RL). Although these lines have expressed copper efficiency in University of Adelaide trials, until now they have been considered agronomically inferior and so have not been used as commercial cultivars. The physical size of rye segment of the 4BS.4BL-5RL translocation in a Chinese Spring background derived from the Cornell Wheat Selection 82a1-2-4-7 was measured using GISH (genomic in situ hybridization) and found to be 16% of the long arm. The size of this translocation was similar to GISH measurements of another 4BS.4BL-5RL translocation in Viking wheat background, although both these lines arose spontaneously and at different times. Molecular maps of both 4BS.4BL-5RL translocations in the two different wheat backgrounds were developed and used to screen for rare recombinants between wheat and rye in a background homozygous for the Sears' ph1b mutant. The maps revealed the approximate genetic location of the translocation breakpoint involved in these two 4BS.4BL-5RL translocations to be similar even though they are known to have arisen at different times and in different experimental populations. The similarity of these translocations suggests a unique property of the region at or near the translocation breakpoint that could be responsible for their similarity and spontaneous formation. After screening 703 critical seedlings for evidence of recombination between the 5RL segment and wheat homoeologues, no confirmed recombinants were identified. Lines containing the 4BS.4BL-5RL translocation were shown to yield equally as well as their recurrent parent under normal field conditions. In addition the presence of the 4BS.4BL-5RL had no adverse effects on a range of grain quality characteristics measured in these lines. A pot trial using lines derived from a cross between the CSHN translocation and the wheat cultivar Warigal (five backcrosses) revealed that they provided copper-efficiency even under the severest of deficiency conditions. While the results of this pot trial did not show the outstanding copper efficiency previously observed in these lines, the translocation did consistently out yield the recurrent parent under severe copper deficiency conditions. Finally, a reliable PCR marker was developed for the rapid identification of lines containing the distal portion of the 5RL chromosome. / Thesis (Ph.D.)--School of Agriculture and Wine, 2004.
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Characterisation of a 4BS.4BL-5RL wheat rye translocation to improve copper efficiency of bread wheat : thesis submitted for the degree of Doctor of Philosophy /Leach, Richard Charles. January 2004 (has links) (PDF)
Thesis (Ph.D.)--University of Adelaide, School of Agriculture and Wine, Discipline of Plant and Pest Science, 2004? / Errata slip inserted at front. Includes bibliographical references (leaves 142-161). Also available online.
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Characterisation of a 4BS.4BL-5RL wheat rye translocation to improve copper efficiency of bread wheat thesis submitted for the degree of Doctor of Philosophy /Leach, Richard Charles. January 2004 (has links)
Thesis (Ph.D.)--University of Adelaide, School of Agriculture and Wine, Discipline of Plant and Pest Science, 2004? / Title from screen page; viewed 8 Feb 2005. Includes bibliographical references. Also available in a print form.
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Sporulation of Stagonospora nodorum /Lowe, Rohan George Thomas. January 2006 (has links)
Thesis (Ph.D.)--Murdoch University, 2006. / Thesis submitted to the Division of Science and Engineering. Includes bibliographical references (leaves 330-343).
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