HAL VG09009 Final Report
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Evaluating sweetpotato varieties to meet market needs Rodney Wolfenden Australian Sweetpotato Growers Inc Project Number: VG09009 VG09009 This report is published by Horticulture Australia Ltd to pass on information concerning horticultural research and development undertaken for the vegetables industry. The research contained in this report was funded by Horticulture Australia Ltd with the financial support of the vegetables industry. All expressions of opinion are not to be regarded as expressing the opinion of Horticulture Australia Ltd or any authority of the Australian Government. The Company and the Australian Government accept no responsibility for any of the opinions or the accuracy of the information contained in this report and readers should rely upon their own enquiries in making decisions concerning their own interests. ISBN 0 7341 3287 5 Published and distributed by: Horticulture Australia Ltd Level 7 179 Elizabeth Street Sydney NSW 2000 Telephone: (02) 8295 2300 Fax: (02) 8295 2399 © Copyright 2014 HAL Project VG09009 (Completion date 31st January 2014) Evaluating sweetpotato varieties to meet market needs Final Report Rodney Wolfenden et al. President; Member of the Research and Development Committee Australian Sweetpotato Growers Inc. (ASPG) HAL Project VG09009 Project Leader: Rodney Wolfenden President; Member of the Research and Development Committee Australian Sweetpotato Growers Inc. (ASPG) P.O. Box 4350, Bundaberg South, QLD 4670 Report prepared by scientists at the Department of Agriculture, Fisheries and Forestry (DAFFQ), on behalf of ASPG. Contact: Sandra Dennien Ph: 07 54662225 Email: [email protected] Key Research Personnel: Sandra Dennien (Experimentalist, DAFFQ, Gatton Research Facility) Eric Coleman (ASPG Research and Development Committee, Rockhampton) Russ McCrystal (McCrystal Consultancies, Bundaberg) Craig Henderson (Principal Horticulturist, DAFFQ, Gatton Research Facility Rachael Langenbaker (Field Assistant, DAFFQ, Bundaberg Research Facility) William O’Donnell (Research Assistant, DAFFQ, Gatton Research Facility) Ron Hermann (Research Assistant, DAFFQ, Gatton Research Facility) Matthew Prichard (ASPG Research and Development Committee, Cudgen) Darren Zunker (ASPG Research and Development Committee, Bundaberg) Michael Jess (ASPG Research and Development Committee, Esk) This report summarises the process and outcomes of a three-year project, evaluating new cultivars to provide additional options for the Australian sweetpotato industry. It compares the new germplasm with current industry standard cultivars in Gold, Red, Purple and White sweetpotato categories. It provides recommendations for further research and extension of project results. This Project has been funded by HAL using the Vegetable levy and matched funds from the Federal Government. The research team gratefully acknowledges the generous financial support of Horticulture Australia Limited and the vegetable levy payers, the Department of Agriculture, Fisheries and Forestry (DAFFQ), and the Australian Sweetpotato Growers Inc. (ASPG). We particularly acknowledge the very generous collaborative engagement of ASPG sweetpotato growers and allied businesses, through provision of their facilities, as well as general support and encouragement”. Submitted to Horticulture Australia Limited: January 2014 Any recommendations contained in this publication do not necessarily represent current HAL policy. No person should act on the basis of the contents of this publication, whether as to matters of fact or opinion or other content, without first obtaining specific, independent professional advice in respect of the matters set out in this publication. Australian Sweetpotato Growers Inc Table of contents TABLE OF CONTENTS ......................................................................................................1 ACKNOWLEDGEMENTS ...................................................................................................6 MEDIA SUMMARY..............................................................................................................7 TECHNICAL SUMMARY.....................................................................................................8 INTRODUCTION ...............................................................................................................10 SURVEYED INTERNATIONAL SWEETPOTATO GERMPLASM ....................................11 ASSEMBLED GERMPLASM MATERIALS ......................................................................12 Summary cultivar notes ............................................................................................................... 15 Gold category ............................................................................................................................................................... 15 Red category................................................................................................................................................................. 17 Purple category............................................................................................................................................................. 19 White category ............................................................................................................................................................. 20 DERIVED PATHOGEN-TESTED GERMPLASM ..............................................................22 Virus testing .................................................................................................................................. 22 Virus indexing.............................................................................................................................................................. 22 Serology using ELISA ................................................................................................................................................. 23 PCR testing................................................................................................................................................................... 23 Testing results .............................................................................................................................. 24 BULKED PLANTING MATERIAL FOR FIRST STAGE EVALUATIONS .........................25 INITIAL GROWER SURVEY .............................................................................................27 Survey results ............................................................................................................................... 28 Production statistics...................................................................................................................................................... 28 Sweetpotato grower attitudes in 2009 .......................................................................................................................... 30 INITIAL MARKET SURVEY ..............................................................................................31 Responses..................................................................................................................................... 31 Merchants, agents and supermarket buyers.................................................................................................................. 31 Large independent and specialist fruit and vegetable retail stores ............................................................................... 31 Other information and comments gained from survey................................................................................................. 32 1 INITIAL DETAILED CULTIVAR EVALUATION EXPERIMENTS IN 2011........................33 Bundaberg evaluation .................................................................................................................. 35 Experimental agronomy summary ............................................................................................................................... 35 Gold category ............................................................................................................................................................... 36 Red category................................................................................................................................................................. 37 Purple category............................................................................................................................................................. 39 White category ............................................................................................................................................................. 40 Cudgen evaluation........................................................................................................................ 42 Experimental agronomy summary ............................................................................................................................... 42 Gold category ............................................................................................................................................................... 43 Red category................................................................................................................................................................. 45 Purple category............................................................................................................................................................