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
Made available via the Publications (Legal Deposit) Act 2004 (NT).
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
Check within Publication or with content Publisher.
Technical Annual Report 2000/01 171 Results from leaf nutrient analysis in 1999 have indicated low to deficient levels of zinc throughout the planting. Copper and calcium levels were marginal. Copper oxy chloride sprays have been used to overcome the copper deficiency problem. A major problem in the past at AZRI has been fruit damage by birds at ripening. The use of a gas powered scare gun has reduced the damage of birds, but early maturing crops still sustain heavy losses. Table 1. Stone fruit average yield per tree (kg) during four years Variety 1997 1998 1999 2000 Sundowner (6/3) [N] 2.51 15.32 14.59 38 Sunraycer (84/16) [N] 1.14 3.52 8.35 48.4 Unknown [N] 2.46 4.06 10.61 66.5 Flordagold [P] 1.66 11.8 12.3 31.9 Flordaglo [P] 4.24 14.66 23.24 23.2 Desert Red [P] 0.94 12.05 9.41 41.3 Moorpark Early [A] 0 0.02 N/A 7 Trevatt [A] 0 0.16 N/A 5.4 Moorpark [A] 0 0.05 N/A N/A Peaches For the 1997 harvest, Flordaglo peach had the highest average yield per tree, followed by Flordagold and Desert Red. Overall yields increased markedly for the 1998 harvest with Flordaglo again having the highest yield per tree, followed by Flordagold and Desert Red. In 1999 Flordaglo again had the highest yield followed by Flordagold with Desert Red recording slightly less than the previous year. For the year 2000 trends changed, with Desert Red having the highest yield followed by Flordagold while Flordaglo remained stable Nectarines For the 1997 nectarine harvest, Sundowner (6/3) had the highest average yield per tree, followed by Sunraycer (84/16). In 1998 the harvest yields also increased markedly, with Sundowner (6/3) having the highest average yield per tree followed by Sunraycer (84/16). In 1999 Sundowner (6/3) yields dropped slightly while Sunraycer (84/16) more than doubled its yield. This provided an overall increase of 5.5 kg of fruit. In 2000 the average yield/tree increased markedly with all three varieties producing large crops. Apricots The apricot trees yielded their first crop in1998. The yield was very low with the Trevatt variety being the only producer. In 1999 and 2000 the trees again had light crops. These trees need more time to establish but it is expected that their yield will increase in future years.