162 HORTSCIENCE VOL. 47(2) FEBRUARY 2012

HortScienceVolume 47, Number 2 CONTENTS February 2012

REVIEW 164 Defense Mechanisms Involved in Disease Resistance of

Grafted Vegetables Wenjing Guan, Xin Zhao, Richard Hassell, and Judy Thies

REPORTS

Breeding, Cultivars, Rootstocks, and Germplasm Resources 171 Resistance of Cucumber Cultivars to a New Strain

of Cucurbit Downy Mildew Adam D. Call, Adam D. Criswell, Todd C. Wehner, Kaori Ando, and Rebecca Grumet

179 Resistance to Lettuce Aphid ( Nasonovia ribisnigri ) Biotype 0 in Wild Lettuce Accessions PI 491093 and PI 274378

James D. McCreight and Yong-Biao Liu 185 Turfgrass Performance of Diploid Buffalograss [ Buchloe

dactyloides (Nutt.) Engelm.] Half-sib Populations Desalegn D. Serba, Osman Gulsen, Bekele G. Abeyo, Keenan L. Amundsen, Donald J. Lee, P. Stephen Baenziger, Tiffany M. Heng-Moss, Kent M. Eskridge, and Robert C. Shearman

Crop Production 189 Irrigation Frequency Alters Nutrient Uptake in

Container-grown Rhododendron Plants Grown with Different Rates of Nitrogen

Carolyn F. Scagel, Guihong Bi, Leslie H. Fuchigami, and Richard P. Regan

198 Organic Fertilization and Its Effect on Development of Sweet Pepper Transplants

Valérie Gravel, Martine Dorais, and Claudine Ménard 205 Velvet Bentgrass and Creeping Bentgrass Growth, Rooting,

and Quality with Different Root Zone Media and Fertility Regimes

John Watson, François Hébert, Eric M. Lyons, Theo Blom, and Katerina S. Jordan

212 Soaking Temperature of Dried Tuberous Roots Influences Hydration Kinetics and Growth of Ranunculus asiaticus (L.) Christopher B. Cerveny, William B. Miller, Thomas Björkman, and Neil S. Mattson

217 Roller Type and Operating Speed Effects on Rye Termination Rates, Soil Moisture, and Yield of Sweet Corn in a No-till System

Ted S. Kornecki, Francisco J. Arriaga, and Andrew J. Price

Disease and Pest Management 224 Foliar Nickel Application Can Increase the Incidence

of Peach Tree Short Life and Consequent Peach Tree Mortality

Andrew P. Nyczepir and Bruce W. Wood 228 Ethylene Analog and 1-Methylcyclopropene Enhance

Black Spot Disease Development in Pyrus pyrifolia Nakai Akihiro Itai, Takaaki Igori, Naoko Fujita, Mayumi Egusa, Motoichiro Kodama, and Hideki Murayama

Growth Regulators 232 Increase in Epidermal Planar Cell Density Accompanies

Decreased Russeting of ‘Golden Delicious ’ Apples Treated with Gibberellin A 4+7

Eric Curry

Propagation and Tissue Culture 238 Developmental Stage and Growth Regulator Concentration

Differentially Affect Vegetative Propagation of Select Clones of Taxodium Rich.

Andrew R. King, Michael A. Arnold, Douglas F. Welsh, and W. Todd Watson

Soil Management, Fertilization, and Irrigation 249 Relative Effects of Fertilizer Nitrogen Form and Phosphate

Level on Control of Bedding Plant Seedling Growth Paul V. Nelson, Cheon-Young Song, Jinsheng Huang, Carl E. Niedziela, Jr., and William H. Swallow

254 Water-efficient Urban Landscapes: Integrating Different Water Use Categorizations and Plant Types

Hongyan Sun, Kelly Kopp, and Roger Kjelgren 264 Development of a Simple Reference Evapotranspiration

Model for Irrigation of Woody Ornamentals Richard C. Beeson, Jr.

20 Image Analysis Systems for Plant ScienceImage Analysis Systems for Plant Sciencewww.regentinstruments.com

WinRHIZO™WinRHIZO™The complete product family

for root analysis

WinFOLIA™WinFOLIA™Leaf area meter, morphology

and pest damage analyser

WinSEEDLE™WinSEEEDDLE™Seed and needle morphology

and pest damage analyser

HORTSCIENCE VOL. 47(2) FEBRUARY 2012 163

269 Effects of FeEDDS and EDDS on Peat-based Substrate pH and Cu, Fe, Mn, and Zn Solubility

Joseph P. Albano

Turf Management 275 Passive Control of Downslope Capillary Wicking

of Water in Sand-based Root Zones Kevin J. McInnes and James C. Thomas

280 The Effect of PcGA2ox Overexpression on Creeping Bentgrass ( Agrostis stolonifera L.): Performance under Various Light Environments

Aneta K. Studzinska, David S. Gardner, James D. Metzger, David Shetlar, Robert Harriman, and T. Karl Danneberger

CULTIVAR AND GERMPLASM RELEASES 285 Mammoth ™ ‘Yellow Quill ’ Garden Chrysanthemum

Neil O. Anderson, Steven Poppe, Peter D. Ascher, Esther Gesick, Shengrui Yao, David Wildung, Patricia Johnson, Vincent Fritz, James Hebel,Lee Klossner, Neal Eash, Barbara E. Liedl, and Judith Reith-Rozelle

289 ‘Blue Angel ’ Winter-hardy Hibiscus ( Hibiscus × moscheutos L.)

Dariusz P. Malinowski, Robert S. Brown, and William E. Pinchak

291 ‘Robert Brown ’ Winter-hardy Hibiscus ( Hibiscus × moscheutos L.)

Dariusz P. Malinowski, Robert S. Brown, and William E. Pinchak

293 ‘Gupton ’ Southern Highbush Blueberry Stephen J. Stringer, Arlen D. Draper, Donna A. Marshall, and James M. Spiers

296 Winterstar TM (‘FL 05-107 ’ ) Strawberry Vance M. Whitaker, Craig K. Chandler,Bielinski M. Santos, Natalia Peres, M. Cecilia do Nascimento Nunes, Anne Plotto, and Charles A. Sims

299 ‘Mountain Magic ’ : An Early Blight and Late Blight-resistant Specialty Type F 1 Hybrid Tomato

Randy G. Gardner and Dilip R. Panthee

MISCELLANEOUS 301 Qualitative Changes of Olive Oils Obtained from Fruits

Damaged by Bactrocera oleae (Rossi) Riccardo Gucci, Giovanni Caruso, Angelo Canale, Augusto Loni, Alfio Raspi, Stefania Urbani, Agnese Taticchi, Sonia Esposto, and Maurizio Servili

307 The Effect of Olive Tree Stock Plant Nutritional Status on Propagation Rates

Arnon Dag, Ran Erel, Alon Ben-Gal, Isaac Zipori, and Uri Yermiyahu

311 Lavandula angustifolia Growth and Physiology Is Affected by Substrate Type and Depth When Grown under Mediterranean Semi-intensive Green Roof Conditions

George Kotsiris, Panayiotis A. Nektarios, and Angeliki T. Paraskevopoulou

REPORTED DEATH318 D. Kim Black

BOOK REVIEWS319 Deceptive Beauties: The World of Wild Orchids

by Christian Ziegler, with introduction by Michael Pollan reviewed by Richard A. Criley

319 Planting and Maintaining a Tree Collection by Simon Toomer reviewed by Ashby Leavell

319 The Biology of Desertsby David Wardreviewed by Allen V. Barker

ON THE COVERA patented smooth roller with crimping bar for mechanical termination of cover crops developed at the USDA-ARS, National Soil Dynamics Laboratory in Auburn, Alabama. For more information, see the article by Kornecki et al. on p. 217.