词条 | Draft:New Zealand Tree Crops Association |
释义 |
The New Zealand Tree Crops Association (NZTCA) was formed in 1974. It was set up in conjunction with The Department of Scientific and Industrial Research (New Zealand) (DSIR) to encourage the use of productive trees in NZ. HistoryThe original goals for the association where to..[1]:
And the association sort to connect a wide variety of people, including farmers, nursery staff, researchers, business, interested people and government officials to achieve the above stated aims[2]. The organisation was set up with a national management committee advising local branches which were designed to be autonomous. At peak there twenty branches, as well as a number of overseas members[3]. Some branches did not remain with high enough membership to warrant having a separate branch. Thus they were folded into neighbouring branches where possible. Thus Aoraki was absorbed by Christchurch, Thames / Coromandel was absorbed by Waikato. The Gisborne and Southland branches did not have any close areas, either geographically or climatically, thus were discontinued. Great Fruit and Nut Search Monty's Surprise apple ResearchThe model that was used for creation of new tree crop industries was the setup of Action Groups which were special interest groups within NZTCA. If successful then the group was swung out into its own organisation. The following action groups were set up by 1994[3], although action groups are no longer active as an organisation, many of these areas are still being grown and researched.
Summary of research undertaken by NZTCA members and associated is summarized below AlmondsDue to New Zealand's climatic conditions almonds can not be grown well enough to compete with overseas production. However some home gardeners would like to grow their own almonds. Thus trials in Nelson, Otago, Wellington / Horowhenua and Waikato have been undertaken[7]. ChestnutChestnut trees that were a cross between Spanish Chestnut (C. saliva) and Japanese chestnut (C. crenata) with potential for commercial cropping were collected from around the Waikato region, these were then graded using a custom Assessment Form[8]. These were given selection numbers and propagated and yearly crops for over 30 clones were collected and analyzed for suitability[9]. In time a number of trees were recommended, with trees for the north Island being: 905, 907, 1002, 1004, 1005, 1007, 1008 1010, 1011, 1015, Horton and Disk 2. The recommended varieties for the South Island were C/IA/106, Crewenna 1, Crewenna 2, Crewenna 3, Don Whelan, Herb Farm, Long Bay I, Long Bay 4, Old Weka Rd 4 and Old Weka Rd 6[10]. The Industry in NZ then centered around the hybrids 1002, 1005 and 1015[11]. A successful export business was established exporting to to Australia, Japan, Korea and the USA[12] with the dominate market being Japan[13]. However this export business did not last. Efforts were then made into processing chestnuts on a commercial scale. Developing machines that could remove the outside shell and pellicle. In the selection process the ease of pellicle removal was not taken into consideration. This unintentionally resulted in nuts in which the pellicule was hard to remove as the nuts folded back onto themselves, trapping the pellicle. Once the pellicule has been removed, the chestnut can then be processed further. Work was done on both juicing and crumbed then dehydrating allowing for long term storage[14]. As of yet this has not been commercially successful. The chestnut shells, pellicule and bits of nut have been trialed as a deworming product. Including in feed at 5 - 10% w/v with alpacas resulted in successful worm treatment[14]. FigsEric Carins has undertaken significant work with figs in New Zealand covering all aspects of growing figs[15]. He has attempted to obtain all genetic material from figs in NZ, and determine what are duplicates with different names, thus compiling an accurate list of the different varieties. The unknown genetics are stored in growing gene banks at three locations in NZ. HazelnutsSignificant volume of work has been undertaken on the potential for hazels as a commercial crop in New Zealand starting with the inception of NZTCA. From 1974 to 1992, the work was done in partnership with the DSIR. Collections were established, one of note was at the NZTCA Tree Crop Centre at Lincoln university. Dr Maxine Thompson who was in charge of the breeding programme at Oregon State University, guided selection for blanched kernat trade. Five of these were called the 'whatnot' selections. These plus new genetic material imported from Oregon and Italy were trialed on 13 growers properties from 1985 to 1988. From 1993 to 2002, after the DSIR was broken in Crown Research Institutes the focus was around trials at Lincoln University. It also involved a new group called the Southern Nut Growers association, which looked to commerilize nuts crops, while the Hazelnut Action group focused on research. It was in this time that the higher quality of whiteheart became apparent compared to some overseas varieties. From 2003 - 2008 due to changes in government funding, the Hazelnut Action Group became The Hazelnut Growers of NZ. This then applied for [https://www.mpi.govt.nz/funding-and-programmes/sustainable-food-and-fibre-futures/ Sustainable Farming Fund] grants to fund research with collection of hazels from old orchards at risk of removal. Also new genetic material was imported from Oregon. From 2008 to 2015 the focus of the research was around yields. Orchards that had been planted were coming into production. But the productions volumes were not as high as expected. This was determined to be due to lack of effective pollination. Therefore data was collected on pollen release and flower opening times, other projects were also completed including economic analysis of viability of hazelnut orchards in the lake Taupo catchment to reduce nitrogen leaching into lake Taupo[16]. Murray Redpath was awarded the Don McKenzie award (see below) for his work on Hazelnuts. Karaka berryThe Karaka berry is the berry of the Karaka tree, a native NZ tree. It was highly valued as a food crop by Maori before European colonization of New Zealand and it is thought it was second only to kumara in overall importance. The yellow fleshed berry contains a nut kernel. The nut contains toxins, which could be deadly. However after steaming / cooking and leaching the toxin levels could be reduced and the nuts processed into nutritious food. Given that the tree is quick growing, and produces high yields of 50 - 100 kg per tree, it is idea for a new and unique food crop. Research was undertaken with The University of Waikato determining, among other things, the levels remaining in the processed nuts. It was determined that cooking and leaching does not remove all the toxins. And since there is not established food safety limit for these toxins, the food safety regulations do not allow for processed karaka nuts to be accepted as a food[17]. MacadamiaMacadamia was first planted in New Zealand at approximately 1932 and started producing nuts around 1938[18]. The NZTCA association formed a focus group in Pine NutsA selection of pines that produce edible nuts were planted by the Wellington-Horowhenua Branch. This included the well known P . pinea, which can be purchased in supermarkets and the lesser known Korean Pine (P. koraiensis), Chinese white pine (P. armandii) as well as Torrey pine (P. Torreyana) and Mexican white pine (P. ayacahuite variety veitchii)[20]. Gene banksTree Crop members have been active in collecting and maintaining varieties of fruit trees. The following gene banks are currently active
PublicationsNZTCA has had three publications over the last four decades:
The organization also published a range of crop guides, developed in the 1990's. These were to help people to understand how to plant and manage various fruit, nut and wood crops in the NZ context. These crop guides focused on the less traditional tree crops, where information was very difficult to obtain. There was also an introduction to various tree crops in NZ, outlining 65 tree crops in simplified format[24]. They also published in depth publications for some of the crops, targeting specific problems or industry related challenges. AwardsThe association created an award in 1985 to honor those which have made a significant contribution to NZCTA. The trophy was a mounted walnut that come from a coal mine in Germany. It had turned to coal, while still remaining clearly recognizable as a walnut. The nut was gifted to Don McKenzie, when he attended a conference in Germany and he in turn gifted it to the association. When Don McKenzie died in a car accident, while on NZTCA business in 1987 the award was named the Don McKenzie award. This award is given out yearly as part of the annual NZTCA conference.[3] Honorary life membership is bestowed upon a small number of members in recognition of their special contribution to NZCTA. These are again awarded at the annual national conference. Current BranchesThere are currently 9 branches in the North Island and five branches in the South Island. References1. ^{{Cite journal|last=Unknown|first=Unknown|date=July 1975|title=First National Conference|url=|journal=New Zealand Tree Crops Association|volume=1|pages=8|via=}} 2. ^{{Cite journal|last=Unknown|first=Unknown|date=July 1976|title=Help is needed from everyone|url=|journal=Journal of New Zealand Tree Crops Association|volume=1|pages=24|via=}} 3. ^1 2 Mary Banks & Maurice Denton (editors) Members Handbook.NZ Tree Crops Association Inc. 1994 4. ^{{Cite book|title=Cork Oaks and Cork A New Zealand Perspective|last=Maccarthur|first=Ross|publisher=Self Published|year=1994|isbn=978-0-473-02658-5|location=|pages=}} 5. ^{{Cite journal|last=Redpath|first=Murray|date=September 2015|title=Gevuina: Gevuina avellana|url=|journal=The Tree Cropper|volume=83|pages=60 – 61|via=}} 6. ^Barton, Ian and Nicholas, Ian. The Potential of Paulownia as an Agroforestry Tree in New Zealand. Presented at ANZIF conference Christchurch 1991. 7. ^{{Cite journal|last=Clothier|first=Sheryn (editor)|date=September 2015|title=Almond Trials|url=|journal=The Tree Cropper|volume=83|pages=8 – 13|via=}} 8. ^Chestnut Assessment Form, Chestnut Action Group, New Zealand Tree Crops Association. 9. ^Report from N.Z.T.C.A. Chestnut Research Group (formally N.Z.T.C.A. North Island Chestnut Action Group.) dated 10 3 1988 10. ^{{Cite book|title=A Beginners Guide to Chestnut Growing|last=Goldsbrough|first=Guy|publisher=Hilton Press|year=1990|isbn=|location=Online located in NZTCA website archive|pages=29}} 11. ^Ray Knowles, New Directions For The New Zealand Chestnut Industry To Consider 1993 pg 4. An inclusion post production in Chestnut Growers Handbook. Published by New Zealand Chestnut Council 12. ^Chestnut Enterprises B.O.P Ltd. Undated pamphlet. 13. ^June 1988 Newsletter. Waikato Chestnut Marketing Association Incorporated 14. ^1 {{Cite journal|last=Klinac|first=David|date=September 2015|title=Chestnut Research in New Zealand|url=|journal=The Tree Cropper|volume=83|pages=38 – 45|via=}} 15. ^{{Cite book|title=Growing Figs in New Zealand|last=Cairns|first=Eric|publisher=New Zealand Tree Crops Association|year=2006|isbn=978-0-473-10892-2|location=|pages=}} 16. ^{{Cite journal|last=Redpath|first=Murray|date=September 2015|title=Hazels: The New Zealand Tree Crops Association has Played a Key Role in the Development of the NEw ZEaland Hazelnut Industry.|url=|journal=The Tree Cropper|volume=83|pages=62 – 67|via=}} 17. ^{{Cite journal|last=Klinac|first=David|date=September 2018|title=Karaka Research|url=|journal=The Tree Cropper|volume=83|pages=68 – 69|via=}} 18. ^{{Cite book|title=Growing Macadamia Nuts in New Zealand|last=Fletcher|first=W. A.|publisher=Ministry of Agriculture and Fisheries|year=1976|isbn=|location=Digital copy held in New Zealand Tree Crop Association online archive..|pages=1}} 19. ^Macadamias. Proceedings of Seminar Held at Mangatarata July 1986. Updated 1988. Organised by N.Z. Tree Crop Assn. Inc. Thames Coromandel Branch. Published by New Zealand Tree Crops Association. 20. ^{{Cite journal|last=Cairns|first=Eric|date=September 2015|title=Pine Nut Research|url=|journal=The Tree Cropper|volume=83|pages=36|via=}} 21. ^{{Cite journal|last=Carins|first=Eric|date=September 2015|title=Focused on Figs|url=|journal=The Tree Cropper|volume=83|pages=46 – 57|via=}} 22. ^{{Cite journal|last=Dunckley|first=Anne|date=September 2015|title=Jim Dunckley Orchard|url=|journal=The Tree Cropper|volume=83|pages=83 – 84|via=}} 23. ^{{Cite journal|last=Hill|first=Kystina|date=September 2015|title=Heritage Fruit Archive|url=|journal=The Tree Cropper|volume=83|pages=23 – 26|via=}} 24. ^{{Cite book|title=Tree Crops in New Zealand Basic Notes|last=Newcomb|first=Gail (editor)|publisher=New ZEaland Tree Crops Association|year=2000|isbn=978-0-473-07069-4|location=New Zealand|pages=1}} |
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