Veterinary and Agricultural Sciences Collected Works - Theses
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ItemThe effect of Bonzi (Paclobutrazol) on height and flowering of the paper daisies Rhodanthe chlorocephala subsp.rosea and Rhodanthe manglesii( 1994)The pink paper daisies Rhodanthe chlorocephala subsp.rosea and Rhodanthe manglesii are Western Australian wild flowers bush harvested as cut flowers. They produce numbers of showy, long lasting inflorescences at the tips of 50 to 60cm tall stems in spring. The growth retardant Bonzi(R) (paclobutrazol) was applied to both species as soil drenches or whole plant sprays alone or combined seed soaks and drenches. The retardant was applied at various concentrations and times, to determine if plant height could be reduced for pot plant production. Growth was measured weekly and recorded on a graph of maximum/TinimuT desired height (20-30cm). After initial treatments on week 4, all treatments were applied using Graphical Tracking techniques, that is, when actual growth deviated above the maximum height line. Plant height was suppressed with all applications of Bonzi(R) (paclobutrazol). Increasing both the rate and number of applications of BonznK)(pac1obutrazo1) led to an increase in shoot suppression, flowering time and number. The combined seed soak (400ppm Bonzi(R)) and multiple drench application (Bonzi(R) 4mg ai/pot x 3) was most effective in suppressing shoot elongation of R.chlorocephala subsp.rosea with plants 41% shorter than untreated plants. lowering was delayed and numbers reduced, but the compact plants had sufficient numbers of flowers at the end of the trial period to appeal to consumers. Bonzi(R) caused very noticeable delays in flowering in all treated Rhodanthe manglesii plants. The 4mg drenches, (4mg ai/pot x 3) gave the most satisfactory result producing plants 38% shorter than untreated controls but some pots had not flowered by the termination of the trial. The best results, in respect to height, were again the combination seed soak plus drench, with only a single 4mg drench application required to reduce height by 48%, but germination was suppressed excessively and flowering was unacceptably delayed. Although growth was suppressed significantly by whole plant sprays none were saleable due to the unsightly chlorotic foliage effects on both species.
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ItemConservation analysis of Burnley Gardens( 1994)V.C.A.H Burnley is a horticultural college surrounded by a historic landscape. The gardens were first established by the Horticultural Society of Victoria in 1863 for the acclimatisation of exotic plants especially fruit trees and in 1891 it became a School of Horticulture. A Significant Tree Study and Tree Census provides a current record of the vegetation and its condition. Through a series of maps and verbal descriptions the study depicts the changes that have occurred in the gardens from the 1860s to the present culminating in a Statement of Significance. To ensure the historical integrity of the gardens remains intact, a conservation policy has been formulated which has guided the development of the management recommendations.
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ItemThe Burnley Garden conservation plan 1939-1999( 1999)This report is intended to form part II of a Conservation Plan for the Burnley gardens, which will assist in the conservation, and preservation of the Burnley Gardens located on the Yarra Boulevard, Richmond. The gardens have a long and rich history, the inception of the Royal Horticultural Society in 1863 provided the foundation for the Department of Agriculture. Horticultural and Agricultural practices and principals were taught for many years at Burnley and during this time the gardens have seen change and evolution to today where Horticultural training is practiced. They hold immense social, historical and scientific significance. The importance of this site cannot be underestimated and as a result thoughtful and strategic planning is needed in future management decisions. The Conservation Plan for the Burnley Gardens 1939-1999, forms the main part of this report and follows the internationally accepted Burra Charter in its format and language. This plan collates and analyzes the garden's history, identifies its value, and recommends policies that will both retain the garden's desirable ambience and guide it future use, giving due respect to the evolution of the student teaching component the gardens have fulfilled.
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