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• W2580455054 abstract "Essential oils crops offer high value, low volume end products for export. Tasmannia lanceolata is currently commercially utilised for its plant extract on a small scale, but the consistency of yield and quality potentially offered by plantation production of the species has the capacity to significantly increase the size of the industry. Early attempts at small scale plantation production highlighted the need to understand the ecophysiology of the species.Climatic and nutritional effects on the growth and plant extract yield and quality of the species were investigated in both glasshouse and field trial conditions. Experiments were conducted on growth responses to manipulated levels of light, temperature, wind and nutrients (with separate experiments focusing specifically on the macronutrients N, P and K and fertiliser rate respectively). Further investigations described the pollen structure of T. lanceolata, as well as vectors that may aid in pollination.Temperature and light levels were manipulated in growth cabinets to determine optimal rates of photosynthesis, and stomatal effects. High light levels and temperatures up to 25°C, positively affected photosynthetic rate. At 25°C, photosynthetic rate significantly declined and stomatal conductance significantly increased.A wind tunnel was used to test plant photosynthesis, stomatal conductance and plant water potential over three different wind speed treatments (16, 28 and 43 km/h). Photosynthetic rate declined at higher wind speeds, while stomatal conductance and plant water potential increased at higher wind speeds, while plants were kept at a constant temperature (20°C).Two field trials with three mulch treatments (bare soil, organic mulch and plastic mulch) and two shelter treatments (with and without tree guards) were applied at two sites. Tree guards increased height and stem circumference after 12 months at both sites on all mulch treatments. Plastic matting and organic mulching increased plant height at one site, while organic mulch significantly increased height of plants over bare soil at the other site. Photosynthetic rates of plants were increased by tree guards under both low and high ambient light conditions. Yield of the most important plant extract component, polygodial, was unaffected by tree guards.Three levels of N, P and K were applied to potted plants in a glasshouse over a 10 month period. The highest application level of N (20mM) achieved the most growth, with considerably increased plant height, leaf number and stem circumference, along with greater yields of polygodial as a percentage of dry matter. Higher rates of N together with lower rates of P produced particularly strong growth. No advances in growth were achieved above the medium level applications of K (6mM) and P (1mM), and oil yield was significantly lowered at the highest treatment levels of both K (12mM) and P (2mM).Five levels of Osmocote Plus Trace Elements were applied to glasshouse grown plants to better understand the effects of total nutrient levels, including nutrients other than N, P and K. Plant height, leaf number and stem width were all affected by fertiliser treatments, with greatest plant height at the highest fertiliser rate but not greatest leaf number or stem width. The lowest fertiliser rate produced a significantly higher extract yield than higher fertiliser treatments, but significantly lower plant growth. Polygodial yield as a proportion of oil yield was unaffected by fertiliser rate.Plant pollen was analysed and pollination was examined in the species. Although a single pollen grain was identified on the leg of a muscoid fly, no positive identification was made that this represented the main pollination vector. Gas chromatography of male and female flower samples indicated very strong similarities between the two, however no compounds were identified that could lead to positive determination of suitable pollination vectors based on known pheromone preferences. Insect traps were laid out in the field to look specifically at the role of native bees in the pollination of T. lanceolata, however no positive identification was made of their role in pollination.The research conducted for this thesis showed that understanding the ecophysiological implications and managing for high winds and temperature will be key to site selection and the implementation of successful commercial production systems, and that adequate and carefully targeted nutrition will be essential for optimising growth and plant extract yield. Critical nutrient values identified in this study will aid in calibrating fertiliser rates for commercial production." @default.
• W2580455054 created "2017-02-03" @default.
• W2580455054 creator A5030323334 @default.
• W2580455054 date "2015-01-01" @default.
• W2580455054 modified "2023-09-24" @default.
• W2580455054 title "Aspects of developing Tasmannia lanceolata for commercial extract production" @default.
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• W2580455054 cites W1586111197 @default.
• W2580455054 cites W1923483341 @default.
• W2580455054 cites W1928217987 @default.
• W2580455054 cites W1963661075 @default.
• W2580455054 cites W1963754991 @default.
• W2580455054 cites W1964279244 @default.
• W2580455054 cites W1974510446 @default.
• W2580455054 cites W1977933218 @default.
• W2580455054 cites W1978423555 @default.
• W2580455054 cites W1983129428 @default.
• W2580455054 cites W1985898483 @default.
• W2580455054 cites W1991551895 @default.
• W2580455054 cites W1992651440 @default.
• W2580455054 cites W1996951052 @default.
• W2580455054 cites W1999799510 @default.
• W2580455054 cites W2001441807 @default.
• W2580455054 cites W2001783132 @default.
• W2580455054 cites W2004962982 @default.
• W2580455054 cites W2009262415 @default.
• W2580455054 cites W2009321562 @default.
• W2580455054 cites W2013427456 @default.
• W2580455054 cites W2019402418 @default.
• W2580455054 cites W2022012656 @default.
• W2580455054 cites W2025353933 @default.
• W2580455054 cites W2034251544 @default.
• W2580455054 cites W2036136150 @default.
• W2580455054 cites W2038937428 @default.
• W2580455054 cites W2039573559 @default.
• W2580455054 cites W2039976265 @default.
• W2580455054 cites W2046634687 @default.
• W2580455054 cites W2047676713 @default.
• W2580455054 cites W2048309867 @default.
• W2580455054 cites W2050168479 @default.
• W2580455054 cites W2052477737 @default.
• W2580455054 cites W2055512891 @default.
• W2580455054 cites W2063165095 @default.
• W2580455054 cites W2067261347 @default.
• W2580455054 cites W2068866080 @default.
• W2580455054 cites W2069360056 @default.
• W2580455054 cites W207471052 @default.
• W2580455054 cites W2074856129 @default.
• W2580455054 cites W2075995669 @default.
• W2580455054 cites W2078053483 @default.
• W2580455054 cites W2080630455 @default.
• W2580455054 cites W2084052976 @default.
• W2580455054 cites W2085142256 @default.
• W2580455054 cites W2088015580 @default.
• W2580455054 cites W2088429017 @default.
• W2580455054 cites W2093571246 @default.
• W2580455054 cites W2094185037 @default.
• W2580455054 cites W2094510589 @default.
• W2580455054 cites W2095331135 @default.
• W2580455054 cites W2095528604 @default.
• W2580455054 cites W2096482238 @default.
• W2580455054 cites W2112976639 @default.
• W2580455054 cites W2119801064 @default.
• W2580455054 cites W2134183205 @default.
• W2580455054 cites W2136449642 @default.
• W2580455054 cites W2137113972 @default.
• W2580455054 cites W2139893102 @default.
• W2580455054 cites W2143563055 @default.
• W2580455054 cites W2147166587 @default.
• W2580455054 cites W2155621620 @default.
• W2580455054 cites W2168554863 @default.
• W2580455054 cites W2185278533 @default.
• W2580455054 cites W226358396 @default.
• W2580455054 cites W2312631415 @default.
• W2580455054 cites W2312963697 @default.
• W2580455054 cites W2313878869 @default.
• W2580455054 cites W2324504203 @default.
• W2580455054 cites W2325279871 @default.
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