Ground Cover Supplement : GC Supplement - Frost
2 Introduction Focus on frost By dr Juan Juttner With frost costing growers tens of millions of dollars annually across Australia's cropping zones, it is not surprising that frost resistance is at the top of many grain growers' research and development wish list. While it is unlikely that total immunity to frost can be delivered in cereals, the GRDC is making a considerable investment to reduce the frost susceptibility of Australian wheat and barley crops through a combination of genetics and crop management research. This Ground Cover Supplement details the scope of the GRDC frost investment across each of its cropping zones. A major aim of the investment is to incorporate frost-resistance traits, sourced both internationally and from within the existing Australian cereal collection, into new varieties better adapted to frost-prone environments. The genetic research component of the GRDC Cover photo: GRDC Ground cover supplement edited by Janet paterson frost initiative is a significant undertaking and like all pre-breeding programs will take considerable time. If suitable traits are found the plan is to start to deliver these genes to Australian cereal breeding programs by 2026 (page 4). The objective of the initiative is to deliver wheat frost resistance at least equivalent to that of the most frost tolerant Australian barley varieties. In the shorter term, research is underway to evaluate management practices that can be used to either avoid or lessen the impact of frost. A range of pre-crop and in-crop management practices are being investigated, the details of which can be found in this supplement. Stubble management (page 18) is emerging as a promising pre-crop tool to lessen the impact of frost. Preliminary research indicates that high stubble loads exacerbate frost damage by restricting the amount of heat stored in the soil and radiated into the canopy at night. In-crop frost management practices being examined include crop grazing (page 19) and the potential for spray-on products to be used to protect growing crops from imminent frost events (page 19). The frost management research will use the field frost measurement knowledge and capacity developed under past and present GRDC-supported frost projects including the Australian National Frost Program. The unpredictable and sudden nature of frosts makes planning for them extremely difficult. Effective frost management will require a range of tools that enable crops to avoid, tolerate or recover from frost events. The GRDC frost initiative will run until 2019 and has been designed to tackle frost from several angles and deliver growers a combination of genetics and management solutions. The GRDC will continue to update growers on the progress of the research projects outlined in this supplement. □ more information: Dr Juan Juttner, senior manager discovery, GRDC, 02 6166 4558, firstname.lastname@example.org Ground Cover is brought to you by growers and the Australian Government through the publisher, the Grains Research and Development Corporation (GRDC). GRDC: 02 6166 4500, fax 02 6166 4599 Write to: The Editor -- Ground Cover, PO Box 5367, Kingston ACT 2604 Publishing Manager: Ms Maureen Cribb, GRDC, 02 6166 4500 Coretext: 03 9670 1168, fax 03 9670 1127, email@example.com, www.coretext.com.au Managing editor: Brad Collis Editor: Janet Paterson Production editor: Victoria Amy Advertising sales: Max Hyde, Hyde Media Pty Ltd, 03 5792 1314, fax 03 5792 1359, firstname.lastname@example.org Advertising is subject to terms and conditions published on the rate card, available from Hyde Media and on the website www.coretext.com.au Circulation: Ms Maureen Cribb, 02 6166 4500 Printing: Cadillac Printing, Adelaide ISSN 1039-6217 Registered by Australia Post Publication No. NAD 3994 Disclaimer: This publication has been prepared in good faith by the GRDC on the basis of the information available to us at the date of publication, without any independent verification. Neither the GRDC and its editors nor any contributor to this publication represent that the contents of this publication are accurate or complete; nor do we accept any responsibility for any errors or omissions in the contents, however they may arise. Readers who act on information from Ground Cover supplement do so at their own risk. The GRDC and contributors to Ground Cover supplement may identify products by proprietary or trade names to help readers identify particular types of products. We do not endorse or recommend the products of any manufacturer referred to. Other products may perform as well as or better than those specifically referred to. CAUTION: RESEARCH ON UNREGISTERED PESTICIDE USE Any research with unregistered pesticides or of unregistered products reported in this document does not constitute a recommendation for that particular use by the authors or the authors' organisations. Copyright: © All material published in the Ground Cover supplement series is copyright protected and may not be reproduced in any form without written permission from the GRDC. All pesticide applications must accord with the currently registered label for that particular pesticide, crop, pest and region.
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