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Abstract not available

Zaleznik (1977) addressing “Development of leadership” in Managers and leaders: Are they different? states that, “The development of every person begins in the family . . . Also, beyond early childhood, the patterns of development that affect managers and leaders involve the selective influence of particular people (p.75). This leads to a position of leadership that he earlier suggested, “inevitably requires using power to influence the thoughts and actions of people” (p.67). These stages of leadership correspond with the roots of leadership, the routes to leadership, and the routines in leadership, investigated in this research project. These were drawn, with some modification, from research conducted by Sinclair and Wilson (2002) into leadership in the Australian setting. Having observed the impact of leadership, or the lack of, in both work and community settings, I was interested to investigate what led to a person becoming a leader, and what they thought they did in that role. It was only near the end of my literature review that I came across Sinclair and Wilson’s work and their use of qualitative research for investigating leadership. I have modelled my research project on theirs, to investigate the development and practises of a group of leaders in the New Zealand setting.

Typescript (photocopy) / viii, 212 leaves, [7] leaves of plates : ill. (part col.) ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.) Dept. of Soil Science, University of Adelaide, 1982

Thesis (M.S.)--Oregon State University, 1963. / Typescript. Includes bibliographical references (leaves 89-93). Also available on the World Wide Web.

Thesis (M.S.)--State University of New York at Binghamton, Biological Sciences Department, 2005. / Includes bibliographical references.

Many mycorrhizosphere microorganisms can produce plant growth regulating compounds in vitro. Plant growth regulating compounds are known to mediate root growth and development. In reforestation practices, conifer tree seedling growth and survival are linked to rapid root growth and development after outplanting. Multifactorial experiments were conducted to document variations in conifer seedling growth, survival and endogenous root indole acetic acid (IAA) content as influenced by exogenously applied plant growth regulators and inoculation with ectomycorrhizal fungi capable of differential in vitro IAA and ethylene production. Capacity for in vitro IAA and ethylene production by mycorrhizal fungal isolates was partially correlated to levels of endogenous root IAA and root growth in inoculated seedlings as well as field transplanted nursery-grown seedlings. Although degree of correlation usually varied with fungal isolate as well as conifer species, IAA-mediated changes in root growth and seedling survival could indirectly be attributed to in vitro fungal plant growth regulator production capability. Exogenous application of plant growth regulating substances at different times during seedling growth and development resulted in significant changes in growth, survival and endogenous root IAA content of both experimental seedlings and field transplanted nursery-grown seedlings. Although effects varied with conifer species and stock types, IAA mediated increases in root growth and survival are projected to be cost beneficial. These results are not only indicative of the complexity of interactions which can occur between symbionts in the mycorrhizosphere but also suggest potential methods for manipulating plant growth regulator mediation of conifer root growth for practical purposes in reforestation. / Graduation date: 1994