Territory Stories

Technical annual report 2000-01

Details:

Title

Technical annual report 2000-01

Collection

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

Date

2001-10

Description

Made available via the Publications (Legal Deposit) Act 2004 (NT).

Notes

Date:2001-10

Language

English

Subject

Agriculture -- Northern Territory -- Periodicals; Fisheries -- Northern Territory -- Periodicals

Publisher name

Dept. of Primary Industry and Fisheries

Place of publication

Darwin

Series

Technical bulletin (Northern Territory. Dept. of Primary Industry and Fisheries) ; no. 295

ISSN

0158-2763

Copyright owner

Check within Publication or with content Publisher.

Parent handle

https://hdl.handle.net/10070/223369

Citation address

https://hdl.handle.net/10070/687151

Page content

Department of Primary Industry and Fisheries 106 The crop was planted using black plastic mulch and trickle irrigation to tensiometer values recommended by Top & Ashcroft. Pre-plant fertiliser was applied and fertigation was used after flowering. Powdery mildew severely affected the crop late in the season, but could be controlled with a carefully implemented spray program. Results: Fruit weight, number per plot of 10 plants, and individual fruit weight and diameter were recorded and the figures were analysed. Analysis was performed on total yield (first and second harvest, marketable and split fruit), yield of the second harvest and also marketable yield. Fruit that were either split or showed some other signs of breakdown were considered unmarketable. Table 1. Total yields, first and second harvest including marketable fruit Variety Weight per plot (kg) Number per plot Weight per fruit (kg) Approx % fruit < 1 kg Tonne/ha* Marketable (tonnes) Delica 54.3 a 37.0 a 1.463 b 6.3 36.2 33.9 Kurijiman 50.6 a 36.0 a 1.405 ab 29.6 33.7 23.7 Pacifica 61.8 a 34.3 a 1.810 c 6.8 41.2 38.4 Sweet mama 64.5 ab 35.0 a 1.844 c 18.1 43.0 35.2 T110 46.1 a 38.0 a 1.218 a 40.4 30.7 18.3 Tetsukabuto 99.0 b 69.7 b 1.426 b 19.1 66.0 53.4 P-value 0.090 0.072 <0.001 LSD (p=0.05) 37.00 25.52 0.1917 Yield per ha was calculated using 1.5 m rows and 1 m between plants, which equates to 6,666 plants per ha. Calculated as plants/ha * weight per plot/10 (as there were 10 plants per plot). Marketable yield = tonne/ha less fruit that was less than 1 kg in weight. Tetsukabuto had significantly higher yield than the other varieties. This was due mainly to higher fruit set. Fruit size of Tetsukabuto was relatively small. These results are interesting when compared with those since published by Top and Ashcroft (2000) for kabocha grown in Victoria. Fruit number per plant grown in Katherine was higher, while fruit size was lower. Better management of these factors could further improve production. The proportion of each variety falling within each diameter grade is presented in Figure 1. This was based on class 1 fruit being more than165 mm, class 2 fruit 130- 165 mm and fruit less than130 mm was too small. A diameter of 130 mm roughly corresponds with 1 kg in weight.