APS_Jan2023

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January 2023

Volume 77 CONTENTS

Number 1

Published by THE AMERICAN POMOLOGICAL SOCIETY Journal of the American Pomological Society (ISSN 1527-3741) is published by the American Pomological Society as an annual volume of 4 issues, in January, April, July and October. Membership in the Society includes a volume of the Journal. Most back issues are available at various rates. Paid renewals not received in the office of the Business Manager by January 1 will be temporarily suspended until payment is received. For current membership rates, please consult the Business Manager. Editorial Office: Manuscripts and correspondence concerning editorial matters should be addressed to the Editor: Richard Marini, 203 Tyson Building, Department of Plant Science, University Park, PA 16802-4200 USA; Email: richmarini1@gmail.com. Manuscripts submitted for publication in Journal of the American Pomological Society are accepted after recommendation of at least two editorial reviewers. Guidelines for manuscript preparation are the same as those outlined in the style manual published by the American Society for Horticultural Science for HortScience, found at http://c.ymcdn.com/sites/www.ashs.org/resource/resmgr/files/style_manual.pdf . Postmaster: Send accepted changes to the Business office. Business Office : Correspondence regarding subscriptions, advertising, back issues, and Society membership should be addressed to the Business Office, C/O Heather Hilko, ASHS, 1018 Duke St., Alexandria, VA 22314; Tel 703-836 4606; Email: ashs@ashs.org Page Charges : A charge of $50.00 per page for members and $65.00 per page ($32.00 per half page) will be made to authors. In addition to the page charge, there will be a charge of $40.00 per page for tables, figures and photographs. Society Affairs : Matters relating to the general operation of the society, awards, committee activities, and meetings should be addressed to Michele Warmund, 1-31 Agriculture Building, Division of Plant Sciences, University of Missouri, Columbia MO 65211; Email:warmundm@missouri.edu. Society Web Site : http://americanpomological.org Diversity of Pawpaw (Asimina triloba) Cultivars in USDA Repositories and Selected Retail Nurseries c. 2022 – Richard B. Frost. ................................................................................................. 2 Performance of ‘Modi ® ’ apple trees on several Geneva rootstocks managed organically: Five-year results from the 2015 NC-140 Organic Apple Rootstock Trial – Terence Bradshaw, Wesley Autio, Suzanne Blatt, Jon Clements, Todd Einhorn, Rachel Elkins, Esmail Fallahi, Poliana Francescatto, Jaume Lordan, Ioannis Minas, Gregory Peck, Terence Robinson, and Shengrui Yao...................... 14 Genetic Analysis of Resistance to Pythium ultimum a Major Component of Replant Disease in Apple Rootstocks – Gennaro Fazio, Mark Mazzola, and Yanmin Zhu............................................. 28 About the Cover: ‘Brewster’ lychee.................................................................................................. 38 Maurice Adin Blake: Father of the New Jersey Peach Industry – Richard P. Marini. ...................... 39 Low-Temperature Survival of 'Creshaven' Peach Flower Buds and Fruit Yield on Eight Rootstocks in the 2017 NC-140 Rootstock Trial – Michele R. Warmund, Mark Ellersieck, James R. Schupp . .... 51 Index for Volume 76 .......................................................................................................................... 62 Instructions to Authors. ..................................................................................................................... 64