Technical annual report 2000-01
Dept. of Regional Development, Primary Industry, Fisheries and Resources technical annual report; Department of Regional Development, Primary Industry, Fisheries and Resources technical and annual report; Reports; PublicationNT; Technical bulletin (Northern Territory. Dept. of Primary Industry and Fisheries) ; no. 295
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Agriculture -- Northern Territory -- Periodicals; Fisheries -- Northern Territory -- Periodicals
Dept. of Primary Industry and Fisheries
Technical bulletin (Northern Territory. Dept. of Primary Industry and Fisheries) ; no. 295
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Technical Annual Report 2000/01 169 Method: The following trees are planted in the horticultural research block at the Katherine Research Station: Guava: Two seedlings (planted April 1992 and April 1993). Rollina: One seedling and one tree of "T10" grafted onto a seedling (planted April 1993). Camito: Two seedlings and one tree of "Haitian" grafted onto a seedling (planted April 1992 and April 1993). Carambola: Two trees of cultivar "B2" and one tree of the cultivar "Fwang Tung" grafted onto seedlings (planted April 1993). Jackfruit: One seedling (planted 1993). Casimoria: One seedling and one tree of the cultivar "Reinikie Commercial" and one tree of the cultivar "Golden Globe" both grafted onto seedlings (planted April 1993). Pomegranate: A cutting of the cultivar "Veles" (planted 1994). Feronia limonia: One seedling (planted 1993). Sapodilla: Two trees of the cultivar "Krasuey" with one grafted on to a sapodilla seedling and the other onto a Mimusops hexandra seedling, one tree of "Tropical sapodilla" grafted onto a sapodilla seedling (planted 1994). Imbe: One seedling (planted May 1995). Mamoncillo: Two seedlings (planted 1994 and 1995). Black sapote: One tree on the cultivar "Superb Black" grafted onto a seedling. Sapindaceae: Marcotts of the two lychee cultivars Tai-so (planted June 1994) and Kwai may-pink (planted February 1995). Four seedling trees of the Vietnam longan were also planted but the planting dates are unknown. Avocado: Trees of the cultivars Semil 34, Hall, Choquette, Peterson, Pollock, Waldin, Tower 2, Victoria, Booth 8, Dr Dupius 2, Kimberly and T6 were grafted onto Zutano seedling rootstocks and planted in the field in October 1995. Some ungrafted Zutano seedlings were also planted at the same time. Annonaceae: Pinks mammoth, Gefner, African pride and Bradley trees grafted onto Atemoya seedling rootstock were field planted at KRS in October 1995. Two seedlings of Annona reticulata and one of A. muricata were also planted at the same time. Results and Discussion: From June 2000 to June 2001, the growth pattern of all trees was monitored on a fortnightly basis. This information is currently being collated to produce a report summarising the performance of various trees in the Katherine region. Bird damage to fruit has been a consistent problem with the sapodilla and guava trees. It appears that some form of bird control, such as netting the trees, may be necessary for commercial production of these species in the Katherine region. Carambola trees flowered profusely, but produced little fruit, perhaps due to problems with pollination. Most of the avocado trees flowered profusely in July/August 2000, but most flowers either failed to set fruit or the fruit dropped when still small. Some fruit was harvested from the avocado trees in late February 2001. Most of the trees produced less than 10 fruit each. However, two different Zutano seedlings produced 117 and 27 fruit, respectively. All trees had fruit of around 200 g or less, except Peterson and Victoria, which produced fruit of more than 650 g (Table 1).