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

Technical Annual Report 2000/01 197 PROJECT: Management System for Diseases of Bananas Fusarium wilt Project Officers: A. Daly, B. Cond, R. Pitkethley, L. Ulyatt and I. Arao-Arao Location: Darwin/Adelaide River Objective: To identify sources of banana for possible testing for resistance to tropical race 4 of Fusarium wilt. Background: The detection of infections of tropical race 4 of Fusarium oxysporum f.sp. cubense in several localities since 1997 has highlighted the need to seek sources of resistance to the pathogen. These will be tested if a suitable testing site can be set up. Apart from plantation hygiene practices, there are no other means of control of this disease. Method and Results: Barry Cond obtained from Sharon Hamill of the Banana Tissue Culture laboratory at Nambour, Queensland, Lakatan/Pisang Berangan, a highly susceptible banana to tropical race 4 of Fusarium oxysporum f.sp. cubense (Foc tr4) in Malaysia for multiplication of inoculum for a varietal testing site. Barry Cond also arranged with Sharon Hamill, Natalie Moore and Madam Ho Yuk Wah of Malaysia to import through quarantine tissue cultures of selections of bananas with resistance/tolerance to tropical race 4. In October 2000, six lines of bananas with tolerance to Foc-tr4 were imported from United Plantations, Malaysia (Madam Ho Yuk Wah) to the AQIS Import Export Centre at Brisbane for post-entry quarantine testing. These are two lines of Grand Nain cv. Novaria, one line of Pisang Embun (Dwarf Cavendish), two lines of Pisang Rastali cv. Mutiara and one line of Pisang Jari Buaya, which Madam Ho Yuk Wah selected for somaclonal resistance to Foc-tr4. Due to contamination in one of the lines of Pisang Rastali cv. Mutiara in Post Entry Quarantine at Nambour, it was re-imported from Malaysia in June 2001. The whole of Plant Pathology is involved in preparations for the inoculation, sampling, isolations and analysis of the Fusarium from a future testing site. Sorghum grain was inoculated in December with a culture of tropical race 4 of Fusarium oxysporum f.sp. cubense in preparation for the inoculation of the banana germplasm testing site at Coastal Plains Research Farm. Both the sterilisation of the sorghum and its inoculation were very time consuming processes. From time to time, the sorghum inoculum was tested for viability on agar plates. PROJECT: Management System for Diseases of Asparagus Project Officers: B. Cond, S. Bellgard, I. Arao-Arao, A. Daly, R. Pitkethley and L. Ulyatt Location: Katherine/Darwin Objective: To develop a management system for diseases of asparagus, with initial emphasis on anthracnose. Background: The Darwin and Katherine sections of Plant Pathology aim to assess the infection cycle and tolerance of commercial asparagus cultivars and native asparagus (Protasparagus racemosus) to anthracnose (Colletotrichum gloeosporioides).