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NORTHERN TERRITORY GOVERNMENT DEPARTMENT OF PRIMARY INDUSTRY AND FISHERIES PRIMARY INDUSTRIES ANNUAL RESEARCH ACHIEVEMENTS REPORT 2011-12 Copyright ©: Northern Territory Government, 2012 This work is copyright. Except as permitted under the Copyright Act 1968 (Commonwealth), no part of this publication may be reproduced by any process, electronic or otherwise, without the specific written permission of the copyright owners. Neither may information be stored electronically in any form whatsoever without such permission. Disclaimer: While all care has been taken to ensure that information contained in this Technical Bulletin is true and correct at the time of publication, changes in circumstances after the time of publication may impact on the accuracy of its information. The Northern Territory of Australia gives no warranty or assurance, and makes no representation as to the accuracy of any information or advice contained in this Technical Bulletin, or that it is suitable for your intended use. You should not rely upon information in this publication for the purpose of making any serious business or investment decisions without obtaining independent and/or professional advice in relation to your particular situation. The Northern Territory of Australia disclaims any liability or responsibility or duty of care towards any person for loss or damage caused by any use of or reliance on the information contained in this publication. December 2012 Bibliography: Northern Territory Government (2012). Primary Industries Annual Research Achievements Report 2011-12. Department of Primary Industry and Fisheries. Technical Bulletin No. 347. Contact: Northern Territory Government Department of Primary Industry and Fisheries GPO Box 3000 Darwin NT 0801 http://www.nt.gov.au/d Technical Bulletin No. 347 ISSN 1839-7409 Contents 1 Biosecurity and Product Integrity ............................................................................ 2 1.1 Crocodile Skin Project ......................................................................................................................... 2 1.2 Viral and Endogenous Retroviral Detection and Characterisation in Farmed Crocodiles .................. 3 2 Pastoral Production .................................................................................................. 4 2.1 Developing Improved On-ground Practices and Industry Strategies for Beef Production Enterprises across Northern Australia to Adapt to Climate Change (Northern Grazing Systems Project Phases 1 and 2) ...................................................................................................................... 4 2.2 On-farm Demonstration of Adaptation and Mitigation Options for Climate Change Across Northern Australia (Climate Clever Beef) ............................................................................................ 6 2.3 North Australian Beef Fertility Project (CashCow) .............................................................................. 8 2.4 Precision Pastoral Management Tools ............................................................................................... 9 2.5 Improving Breeder Herd Efficiency in the Arid Region with Performance Recording and Objective Selection ........................................................................................................................... 10 2.6 Selected Brahmans - Improvement of the Fertility of the Brahman through the Use of BREEDPLAN Estimated Breeding Values (EBVs) and Selection .................................................... 11 2.7 The Use of Alternative Tropical Breeds Part D: Senepol Crossbreeding Trial ................................. 13 2.8 Phosphorous Supplementation in Beef Cattle .................................................................................. 15 2.9 Cell Grazing of Improved Pastures for Increased Beef Production and Soil Carbon Sequestration .................................................................................................................................... 16 2.10 A Comparison between the Productivity of a Multi-breed Composite and a Brahman Breeder Herd ................................................................................................................................................... 17 2.11 Riverine Buffalo and Crossbreeding ................................................................................................. 19 2.12 Enhancing Productivity Improvements in the Australian Water Buffalo Industry .............................. 21 2.13 TenderBuff Development and Supply ............................................................................................... 22 2.14 Pasture Sustainability Kidman Springs ............................................................................................. 23 2.15 Shruburn (VRRS long term fire trial) ................................................................................................. 24 2.16 Optimum Levels of Pasture Utilisation at Mt Sanford and Pigeon Hole Stations ............................. 25 2.17 Improving the Reproductive Performance of Cows and the Performance of Fattening Cattle in Low Input Systems of Indonesia and Northern Australia (StrawCow), (Project LPS/2008/038) ...... 26 2.18 Making Production and Conservation Gains through Adaptive Grazing: Beetaloo Pilot .................. 27 2.19 Arid Zone Grazing Strategies ............................................................................................................ 28 3 Plant Industries ....................................................................................................... 29 3.1 Addressing Product Quality and Safety with LOTE (Language Other Than English) Growers of Vegetables ........................................................................................................................................ 29 3.2 The Determination of an Optimum Irrigation Strategy for Tropical Passionfruit ............................... 30 3.3 Integrated Tropical Passionfruit Production Systems in South Sulawesi ......................................... 31 3.4 An Evaluation of Candidate Table Grape Varieties for Central Australia ......................................... 33 3.5 Delimiting Survey for Cocoa Pod Borer (Conopomorpha cramerella, Lepidoptera: Gracillaridae) in the Solomon Islands ............................................................................................... 34 iii 3.6 Quality Management to Enhance Effective Supply Chains for Mangoes and Rambutans in Nusa Tenggara Barat, Indonesia and Australia (ACIAR funded project) ..........................................36 3.7 Molecular Characterisation of Colletotrichum Species Causing Mango Anthracnose in the Northern Territory and Indonesia (part of the ACIAR project “Quality Management to Enhance Effective Supply Chains for Mangoes and Rambutans in Nusa Tenggara Barat, Indonesia and Australia”) ..........................................................................................................................................38 3.8 Darwin Mango Post-harvest Disease Control Trial (part of the ACIAR project “Quality Management to enhance Effective Supply Chains for Mangoes and Rambutans in Nusa Tenggara Barat, Indonesia and Australia”) .......................................................................................40 3.9 Defects Analysis on Mangoes in Darwin, Katherine and Kununurra (part of the ACIAR project “Quality management to enhance effective supply chains for mangoes and rambutans in Nusa Tenggara Barat, Indonesia and Australia”) .......................................................................................43 3.10 Systemic Insecticides for Managing Sap-sucking Insect Pests in Mangoes (part of the ACIAR project “Quality management to enhance effective supply chains for mangoes and rambutans in Nusa Tenggara Barat, Indonesia and Australia”) ..........................................................................44 3.11 Smart Forests Alliance Queensland ..................................................................................................46 3.12 Strategies for Using Floriculture to improve Livelihoods in Indigenous Australian and Pacific Island Communities ...........................................................................................................................47 3.13 Development of a National Diagnostic Protocol for Mango Malformation Disease ..........................48 3.14 Linking Rambutan Phenology and Key Economic Germplasm for Improved Production .................49 3.15 Studies on Pheromones of Mango Fruit Borers and Red-banded Mango Caterpillars .....................51 3.16 Reducing Greenhouse Gas Emissions through Improved Nitrogen Management on Northern Territory Farms ..................................................................................................................................52 3.17 Rice Production Systems for the Northern Territory .........................................................................53 3.18 Evaluating New Mango Scions and Stocks .......................................................................................55 3.19 Optimisation of Date Pollination ........................................................................................................56 3.20 Wet Season Nitrogen Management Trial – Maneroo Station, Douglas Daly ....................................57 3.21 An Investigation of Growth Regulators for the Control of Termites