Horticultural Reviews, Volume 48 -  - E-Book

Horticultural Reviews, Volume 48 E-Book

0,0
210,99 €

-100%
Sammeln Sie Punkte in unserem Gutscheinprogramm und kaufen Sie E-Books und Hörbücher mit bis zu 100% Rabatt.

Mehr erfahren.
Beschreibung

Horticultural Reviews presents state-of-the-art reviews on topics in horticultural science and technology covering both basic and applied research. Topics covered include the horticulture of fruits, vegetables, nut crops, and ornamentals. These review articles, written by world authorities, bridge the gap between the specialized researcher and the broader community of horticultural scientists and teachers.

Sie lesen das E-Book in den Legimi-Apps auf:

Android
iOS
von Legimi
zertifizierten E-Readern

Seitenzahl: 966

Veröffentlichungsjahr: 2021

Bewertungen
0,0
0
0
0
0
0
Mehr Informationen
Mehr Informationen
Legimi prüft nicht, ob Rezensionen von Nutzern stammen, die den betreffenden Titel tatsächlich gekauft oder gelesen/gehört haben. Wir entfernen aber gefälschte Rezensionen.



Table of Contents

Cover

Title Page

Copyright

Contributorscontributors

Note

Dedication: Gregory L. Reighard

1 Pollination‐Induced Changes in the Morphology and Physiology of

Dendrobium

Orchid Flowers Prior to Fertilization: The Roles of Ethylene and Auxin

I. INTRODUCTION

II. ORCHID FLOWER STRUCTURE

III. POST‐POLLINATION EFFECTS IN ORCHIDS OTHER THAN DENDROBIUM

IV. ROLE OF HORMONES IN ORCHIDS OTHER THAN DENDROBIUM

V. POLLINATION IN DENDROBIUM

VI. VISIBLE POST‐POLLINATION EFFECTS IN

DENDROBIUM

VII. ROLE OF HORMONES IN THE VISIBLE POST‐POLLINATION PHENOMENA IN

DENDROBIUM

VIII. CONCLUSIONS

ACKNOWLEDGMENTS

LITERATURE CITED

2

Actinidia arguta

(Kiwiberry): Botany, Production, Genetics, Nutritional Value, and Postharvest Handling

I. INTRODUCTION

II. BOTANY

III. CULTIVATION AND MANAGEMENT

IV. GENETICS AND BREEDING

V. CHEMICAL COMPOSITION, NUTRITIONAL VALUE, AND HEALTH BENEFITS

VI. HARVESTING AND POSTHARVEST HANDLING

VII. UTILIZATION

VIII. CONCLUSIONS

LITERATURE CITED

3 Advances in Cassava‐Based Multiple‐Cropping Systems

I. INTRODUCTION

II. INTERCROPPING CASSAVA

III. CROP ROTATION INVOLVING CASSAVA

IV. CASSAVA‐BASED SEQUENTIAL/INTERCROPPING SYSTEMS INVOLVING PULSES AND/OR RICE

V. CASSAVA + PLANTATION CROPS

VI. PESTS AND DISEASES IN CASSAVA‐BASED INTERCROPPING

VII. CONCLUSIONS AND FUTURE PROSPECTS

LITERATURE CITED

4 Arrowroot (

Maranta arundinacea

L.): Botany, Horticulture, and Uses

I. INTRODUCTION

II. OCCURRENCE AND DISTRIBUTION

III. BOTANY: TAXONOMY, MORPHOLOGY, AND GENETICS

IV. HORTICULTURAL ASPECTS

V. PROCESSING

VI. USES AND APPLICATIONS

VII. CONCLUSIONS

ACKNOWLEDGMENTS

LITERATURE CITED

5 Jamun (Syzygium cumini L. Skeels): A Promising Fruit for the Future

I. INTRODUCTION

II. ECONOMIC SIGNIFICANCE

III. BOTANY, TAXONOMY, AND GENETICS

IV. CULTIVATION PRACTICES

V. NUTRITIONAL VALUE

VI. HEALTH‐PROMOTING EFFECTS

VII. POSTHARVEST PRACTICES

VIII. PROCESSING

IX. CONCLUSIONS

LITERATURE CITED

6 Coconut Micropropagation and Cryopreservation

I. INTRODUCTION

II.

IN VITRO

PROPAGATION TECHNOLOGY

III. BIOREACTOR TECHNOLOGY

IV. CRYOPRESERVATION

V. SUMMARY AND CONCLUSIONS

LITERATURE CITED

7 The Puzzling Phenomenon of Seedling Yellows Recovery and Natural Spread of Asymptomatic Infections of Citrus Tristeza Virus: Two Sides of the Same Coin

I. INTRODUCTION

II. THE CTV GENOME AND BIOLOGY

III. A SHORT ACCOUNT OF THE ISRAELI CTV SUPPRESSION PROGRAM (1970–1986)

IV. COMPARISONS OF SEVERE AND MILD CTV‐VT ISOLATES FROM SICILY

V. DISCUSSION

ACKNOWLEDGMENTS

LITERATURE CITED

8 Yield Alternation: Horticulture, Physiology, Molecular Biology, and Evolution

I. INTRODUCTION

II. MOLECULAR MECHANISMS OF FLOWERING CONTROL IN MODEL PLANTS AND FRUIT TREES

III. EFFECT OF FRUIT LOAD ON CHANGES IN GENE EXPRESSION, PROTEIN, AND METABOLITE LEVELS IN LEAVES AND BUDS

IV. THE EFFECT OF FRUIT LOAD ON HORMONE HOMEOSTASIS

V. MITIGATION OF ALTERNATE BEARING

VI. DISCUSSION

ACKNOWLEDGMENTS

LITERATURE CITED

Note

Subject Index

Cumulative Subject Index

Cumulative Contributor Index

End User License Agreement

List of Tables

Chapter 1

Table 1.1 Time (in days after pollination taking place, just after full flowe...

Table 1.2 Time to visible post‐pollination symptoms in

Dendrobium

‘Kenny' flow...

Table 1.3 Concentrations of ACC and unconjugated IAA in pollinia of various

De

...

Table 1.4 Ovary diameter of

Dendrobium

‘Pompadour' flowers with and without 0....

Table 1.5 Pollen germination and pollen tube growth, determined 7 days after ...

Chapter 2

Table 2.1 Recommended irrigation water parameterizations for analysis of irri...

Table 2.2 The most widely cultivated commercial female cultivars of

A. arguta

....

Table 2.3 Other named selections of

A. arguta

.

Table 2.4 A trait‐based product target template for the development of improv...

Table 2.5 Composition of vitamins in

A. arguta

fruit.

Table 2.6 Pigment composition of

A. arguta

fruit.

Table 2.7 Phenolic compounds in

A. arguta

fruit.

Table 2.8 Phenolic compounds identified in

A. arguta

fruit and leaves.

Table 2.9 Ranges of mineral nutrient concentrations in

A. arguta

fruit.

Table 2.10 Amino acids composition of

A. arguta

fruit.

Table 2.11

In vitro

antioxidant activity of

A. arguta

fruit extracts.

Chapter 4

Table 4.1 Phytochemical constituents of arrowroot (

Maranta arundinacea

L.) rh...

Table 4.2 Physico‐chemical composition of arrowroot starch (

Maranta arundinac

...

Table 4.3 Technical‐functional properties of arrowroot starch (

Maranta arundi

...

Chapter 5

Table 5.1 Nutritional content of jamun fruit pulp.

Table 5.2 Contents of some phytochemicals in jamun fruit.

Table 5.3 Major anthocyanins, flavanonol, flavonol, and hydrolysable tannin c...

Chapter 6

Table 6.1

In vitro

culture techniques applied to coconut and results obtained.

Table 6.2 Y3 medium composition.

Table 6.3 Cryopreservation techniques applied to coconut and results obtained...

Chapter 7

Table 7.1 Nucleotides and amino acid modifications between CTV‐VT‐SY isolate ...

Chapter 8

Table 8.1 The most widely practiced methods for mitigation of alternate beari...

List of Illustrations

Chapter 1

Figure 1.1

Dendrobium appendiculatum

[syn.

Flickingeria appendiculata

(Blume...

Figure 1.2 Atypical flower morphology in the genus

Dendrobium

.

Dendrobium ch

...

Figure 1.3

Dendrobium cuthbertsonii

, showing its variability in flower color...

Figure 1.4 Morphology of pollinia (left) and magnified surface of pollen sho...

Figure 1.5 Post‐pollination symptoms in

Dendrobium

flowers. Flowers of ‘Kenn...

Figure 1.6 Color changes after pollination of

Dendrobium

‘Karen' flowers, no...

Figure 1.7 Ethylene production in non‐pollinated and pollinated

Dendrobium

‘...

Figure 1.8 Ethylene production by non‐pollinated

Dendrobium

‘Kenny' flowers ...

Chapter 2

Figure 2.1 One‐year‐old shoots from a collection of genotypes of

A. arguta

. ...

Figure 2.2 Types of

A. arguta

summer shoots. (

Source

: Based on Latocha 2017....

Figure 2.3

Actinidia arguta

leaf morphological diversity. (

Source

: Photo cre...

Figure 2.4

Actinidia arguta

(left) male and (right) female flowers. (

Source

:...

Figure 2.5 A sample of

A. arguta

fruit morphological diversity. (

Source

: Pho...

Figure 2.6 Sensory profile of

A. arguta

fruit. (

Source

: Based on Latocha et ...

Figure 2.7 The main

A. arguta

phenological stages from budbreak to fruit set...

Figure 2.8 Kiwiberry vineyard, T‐bar system, Belgium. (

Source

: Photo credit:...

Figure 2.9 Kiwiberry vineyard, pergola system, Portugal. (

Source

: Photo cred...

Chapter 4

Figure 4.1 Center of origin and geographical distribution of

Maranta arundin

...

Figure 4.2 Morphological aspects of arrowroot (

Maranta arundinacea

var.

comu

...

Figure 4.3 Variation in the pattern and shape of rhizomes in arrowroot (

Mara

...

Figure 4.4 Sections of the arrowroot (

Maranta arundinacea

L.)

comum

accessio...

Figure 4.5 Variation of the pattern and shape of flowers in arrowroot access...

Figure 4.6 Dendrogram of the genetic similarity obtained from RAPD amplifica...

Figure 4.7 Comparison of the viscocity of arrowroot (

Maranta arundinacea

L.)...

Figure 4.8 Shape and size of arrowroot (

Maranta arundinacea

L.) starch granu...

Chapter 5

Figure 5.1 Tree and flowers of jamun (

Syzygium cumini

(L.) Skeels).

Figure 5.2 Seedling production of jamun (

Syzygium cumini

(L.) Skeels).

Figure 5.3 High‐density planting of jamun trees (2.5 × 2.5 m) in India.

Figure 5.4 Range of fruit maturity within an inflorescence of jamun (

Syzygiu

...

Figure 5.5 Jamun (

Syzygium cumini

(L.) Skeels) fruit at successive stages of...

Figure 5.6 Longitudinal section of fruit and seed of jamun (

Syzygium cumini

...

Figure 5.7 Traditional harvesting method for jamun fruit.

Figure 5.8 Basket for jamun fruit made from woven strips of date leaves.

Chapter 7

Figure 7.1 Reinvigoration of a ‘Tarocco' orange tree, two years after severe...

Figure 7.2 Symptoms induced on different hosts by the VT‐SY isolate SG29, pr...

Figure 7.3 Severe stunting and root rot of sour orange seedlings (a) inocula...

Figure 7.4 ‘Tarocco' (upper photos) and ‘Moro' (lower photos) orange trees g...

Chapter 8

Figure 8.1 Flowering control pathways in

Arabidopsis

. Major genes associated...

Figure 8.2 Genes associated with putative flowering‐control pathways in frui...

Figure 8.3 The implementation of the auxin transport autoinhibition (ATA) th...

Figure 8.4 An example of strong, consistent alternate bearing. Alternate bea...

Figure 8.5 Critical fruit load for regular bearing. Linear Pearson correlati...

Figure 8.6 Regional patterns of synchrony. Normalized first differences of a...

Figure 8.7 Tree collapse by fruit overload. Complete tree collapse in ‘Kinno...

Figure 8.8 The fruit overload syndrome. A scheme summarizing one possible me...

Guide

Cover

Table of Contents

Begin Reading

Pages

iv

ix

x

xi

xiii

xiv

xv

xvi

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

280

281

282

283

284

285

286

287

288

289

290

291

292

293

294

295

296

297

298

299

300

301

302

303

304

305

306

307

308

309

310

311

312

313

314

315

316

317

318

319

320

321

322

323

324

325

326

327

328

329

330

331

332

333

334

335

336

337

339

340

341

342

343

344

345

346

347

348

349

350

351

352

353

354

355

356

357

358

359

360

361

362

363

364

365

366

367

368

369

370

371

372

373

374

375

376

377

378

379

380

381

382

383

384

385

386

387

388

389

390

391

392

393

394

395

396

397

398

399

400

401

402

403

404

405

406

407

408

409

410

411

412

413

414

415

416

417

418

419

420

421

422

423

424

425

426

427

428

429

430

431

432

433

434

435

436

437

438

439

440

441

442

443

444

445

446

447

448

449

450

451

452

453

455

456

457

458

459

460

461

462

463

464

Horticultural Reviews is sponsored by:

American Society for Horticultural Science

International Society for Horticultural Science

 

Editorial Board, Volume 48

A. Ross Ferguson

Robert E. Paull

HORTICULTURAL REVIEWS Volume 48

Edited byIan WarringtonMassey UniversityNew Zealand

 

 

 

 

 

 

 

 

This edition first published 2021

© 2021 John Wiley & Sons, Inc.

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, except as permitted by law. Advice on how to obtain permission to reuse material from this title is available at http://www.wiley.com/go/permissions.

The right of Ian Warrington to be identified as the author of this editorial material has been asserted in accordance with law.

Registered Offices

John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, USA

John Wiley & Sons Ltd, The Atrium, Southern Gate, Chichester, West Sussex, PO19 8SQ, UK

Editorial Office

The Atrium, Southern Gate, Chichester, West Sussex, PO19 8SQ, UK

For details of our global editorial offices, customer services, and more information about Wiley products visit us at www.wiley.com.

Wiley also publishes its books in a variety of electronic formats and by print‐on‐demand. Some content that appears in standard print versions of this book may not be available in other formats.

Limit of Liability/Disclaimer of Warranty

While the publisher and authors have used their best efforts in preparing this work, they make no representations or warranties with respect to the accuracy or completeness of the contents of this work and specifically disclaim all warranties, including without limitation any implied warranties of merchantability or fitness for a particular purpose. No warranty may be created or extended by sales representatives, written sales materials or promotional statements for this work. The fact that an organization, website, or product is referred to in this work as a citation and/or potential source of further information does not mean that the publisher and authors endorse the information or services the organization, website, or product may provide or recommendations it may make. This work is sold with the understanding that the publisher is not engaged in rendering professional services. The advice and strategies contained herein may not be suitable for your situation. You should consult with a specialist where appropriate. Further, readers should be aware that websites listed in this work may have changed or disappeared between when this work was written and when it is read. Neither the publisher nor authors shall be liable for any loss of profit or any other commercial damages, including but not limited to special, incidental, consequential, or other damages.

Library of Congress Cataloging‐in‐Publication Data

Names: Warrington, I. J. (Ian J.) editor.

Title: Horticultural reviews. Volume 48 / Ian Warrington.

Description: First edition. | Hoboken, NJ, USA : Wiley, 2021. | Includes bibliographical references and index.

Identifiers: LCCN 2020037759 (print) | LCCN 2020037760 (ebook) | ISBN 9781119750772 (cloth) | ISBN 9781119750789 (adobe pdf) | ISBN 9781119750796 (epub)

Subjects: LCSH: Horticulture–Bibliography. | Horticulture–Research.

Classification: LCC SB318.3 .H678 2021 (print) | LCC SB318.3 (ebook) | DDC 635–dc23

LC record available at https://lccn.loc.gov/2020037759

LC ebook record available at https://lccn.loc.gov/2020037760

Cover Design: Wiley

Cover Image: Courtesy of Jules Janick

Contributors

Moshe Bar‐Joseph, The S. Tolkowsky Laboratory, Department of Plant Pathology, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel

Vitor Brito, Departamento de Produção e Gestão Agroindustrial, Universidade para o Desenvolvimento do Estado e Região do Pantanal (UNIDERP), Campo Grande, Brazil

Antonino F. Catara, Science and Technology Park of Sicily, Catania, Italy (Present address: Agrobiotech Soc. Coop., Catania, Italy)

Marney Cereda, Departmento de Ciências Ambientais e Sustentabilidade Agropecuária, Universidade Católica Dom Bosco (UCDB), Campo Grande, Brazil

Reginaldo Costa, Departmento de Ciências Ambientais e Sustentabilidade Agropecuária, Universidade Católica Dom Bosco (UCDB), Campo Grande, Brazil

Abdolmajid Mirzaalian Dastjerdy, Department of Horticultural Science, Faculty of Agriculture and Natural Resources, University of Hormozgan, Bandar Abbas, Iran

Filip Debersaques, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Valentin Vaerwyckweg 1, B‐9000 Ghent, Belgium

André Fattori, Departmento de Ciências Ambientais e Sustentabilidade Agropecuária, Universidade Católica Dom Bosco (UCDB), Campo Grande, Brazil

Ksenija Gasic, Department of Plant and Environmental Sciences, Clemson University, Clemson, SC 29634, USA

John B. Golding, NSW Department of Primary Industries, Gosford, NSW, Australia

Eliezer E. Goldschmidt, Institute of Plant Sciences and Genetics in Agriculture, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, 761000 Israel

Shokrollah Hajivand, Horticultural Research Institute, AREEO, Karaj, Iran

Iago Hale, Department of Agriculture, Nutrition, and Food Systems, University of New Hampshire, Durham, NH 03824, USA

Nathalia Joffer, Departmento de Ciências Ambientais e Sustentabilidade Agropecuária, Universidade Católica Dom Bosco (UCDB), Campo Grande, Brazil

Saichol Ketsa, Department of Horticulture, Kasetsart University, Chatuchak, Bangkok 10900, Thailand and Academy of Science, The Royal Society of Thailand, Dusit, Bangkok 10300, Thailand

Piotr Latocha, Department of Environmental Protection and Dendrology, Faculty of Horticulture and Biotechnology, Warsaw University of Life Sciences – SGGW, Nowoursynowska str 166, 02‐787 Warsaw, Poland

Ana S. Lédo, Embrapa Tabuleiros Costeiros, Aracaju, SE, Brazil

Grazia Licciardello, Agrobiotech Soc. Coop., Catania, Italy (Present address: Council for Agricultural Research and Economics, Research Centre for Olive, Citrus and Fruit Trees (CREA‐OFA), Rende (Cosenza), Italy)

Josemar Maciel, Departmento de Desenvolvimento Local, Universidade Católica Dom Bosco (UCDB), Campo Grande, Brazil

Babak Madani, Horticultural Crops Research Department, Natural Resources Research and Education Center of Hormozgan, AREEO, Bandar Abbas, Iran

Juan Carlos Melgar, Department of Plant and Environmental Sciences, Clemson University, Clemson, SC 29634, USA

Amin Mirshekari, Department of Agronomy and Plant Breeding, Faculty of Agriculture,

University of Yasouj, Yasouj, Iran

Sanket J. More, ICAR – Central Tuber Crops Research Institute, Sreekariyam, Thiruvananthapuram, India

Jeniffer Narcisa‐Oliveira, Departmento de Ciências Ambientais e Sustentabilidade Agropecuária, Universidade Católica Dom Bosco (UCDB), Campo Grande, Brazil

Renata Nascimento, Departmento de Ciências Ambientais e Sustentabilidade Agropecuária, Universidade Católica Dom Bosco (UCDB), Campo Grande, Brazil

Carina Oliveira, Departmento de Ciências Ambientais e Sustentabilidade Agropecuária, Universidade Católica Dom Bosco (UCDB), Campo Grande, Brazil

V. Ravi, ICAR – Central Tuber Crops Research Institute, Sreekariyam, Thiruvananthapuram, India

Avi Sadka, Department of Fruit Tree Sciences, The Institute of Plant Sciences, Agricultural Research Organization, The Volcani Center, Rishon LeZion, 7528809 Israel

R. Saravanan, ICAR – Central Tuber Crops Research Institute, Sreekariyam, Thiruvananthapuram, India

G. Suja, ICAR – Central Tuber Crops Research Institute, Sreekariyam, Thiruvananthapuram, India

Lorene Tiburtino‐Silva, Departmento de Desenvolvimento Local, Universidade Católica Dom Bosco (UCDB), Campo Grande, Brazil

Wouter G. van Doorn,† Mann Laboratory, Department of Plant Sciences, University of California, Davis, CA 95616, USA

Wagner A. Vendrame, Environmental Horticulture Department, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL, USA

Ian J. Warrington, Massey University, Palmerston North, New Zealand

Elhadi M. Yahia, Facultad de Ciencias Naturales, Universidad Autonoma de Querétaro, Querétaro, Mexico

Note

Deceased.

Dedication: Gregory L. Reighard

This volume of Horticultural Reviews is dedicated to Dr Gregory L. Reighard, Professor Emeritus at Clemson University, for his contributions to horticulture and horticultural research, especially in areas relating to fruit production.

Dr Reighard was born in Johnstown, Pennsylvania, in the midst of a rural coal‐mining area. He lived next to his grandparents who had a small mountain farm near South Fork, Pennsylvania, where he helped with farm chores and developed an interest in growing fruits and vegetables. He also spent a lot of time in the mountain forests hunting and foraging, so he developed a love for trees. He was the first in his wider family to go to college and attended Pennsylvania State University, attaining his B.S. in Forestry in 1977. He completed his M.S. in Biology at the University of Michigan in 1978, and a Ph.D. in Forestry at Michigan State University in 1984. After working in forest management in Montana and Florida, he decided that he did not want to “harvest” trees as his legacy, but instead nurture and improve them for what fruits or nuts they could provide. After graduation and working at the University of Florida as a research associate, he applied and interviewed for a tree fruit (pomology) position in the Department of Horticulture at Clemson, where he subsequently spent his entire professional career as a faculty member in the College of Agriculture, Forestry and Life Sciences, with research, extension, and teaching appointments. In 2017, he served as Interim Chair of the Department of Plant and Environmental Sciences. At this institution, he has demonstrated excellence in scholarship, and dedication to the discipline of pomology and to the commercial tree fruit industry.

Dr Vance Baird, Chair of the Department of Horticulture at Michigan State University, has observed that “you know someone has been well‐educated and possesses adaptable insight when he can take two degrees in Forestry and one in Biology and translate that into one of the most successful careers in tree fruit physiology and germplasm improvement – and developed a career that has evolved with the state‐of‐the‐science and with commercial production needs.”

Dr Reighard's accomplishments in pomology are impressive, especially as they span the range from applied, field‐based work to the fundamentals of molecular biology. His research interests include the study of physiological phenomena of genetically compound fruit trees in terms of effects of rootstocks, interstems, and cultural practices on vegetative growth, fruiting, frost protection, nutrition, disease resistance, and cold injury. Additional research has involved developing new rootstocks that are resistant to nematodes, determining how interstems and growth hormones affect root growth and scion phenology, developing flower bud thinning techniques, and finding molecular markers for traits such as nematode resistance and dormancy control for use in applied breeding programs.

One of his greatest accomplishments came about through his commitment to the performance evaluation and genetic analysis of rootstocks that could provide tolerance to the peach tree short life (PTSL) disease complex. His insight and perseverance, and his collaboration with colleagues at the USDA, resulted in the identification, selection, development, and commercialization of the Guardian® peach rootstock, which provided the industry with a rootstock choice that protected trees from PTSL. This was an outstanding contribution at a critical time when the industry was losing traditional chemical control options. It allowed the peach industry in the southeastern United States to thrive by improving the long‐term sustainability and profitability of many farms. Today, at least 90% of all commercial peaches newly planted in the southeastern United States are planted on Guardian® rootstock. Furthermore, Guardian® rootstock is having a similarly positive impact on peach production in other major stone fruit–producing areas around the world, including California, South Africa, and Australia.

Chalmers R. Carr III, President and CEO of Titan Farms, a 2000 ha peach operation, states, “The southern peach industry, most especially the South Carolina peach industry, second only to California in peach production, was truly headed toward extinction due to PTSL disease. Research by Dr Reighard and colleagues that was dedicated to developing and releasing the Guardian® rootstock not only stopped the dwindling spiral of peach production in the southeast but has allowed the industry to thrive and flourish.”

Other than the development of Guardian®, Dr Reighard's program has also been very successful in achieving an improved understanding of crop load management, harvest modeling, tree habit, bud dormancy, and structural and comparative genomics, not just in peach but also in other important fruit crops such as apple, apricot, pear, and plum. His enthusiasm to collect and evaluate various germplasm for its potential to serve as Prunus rootstocks was very fortunate, as the stone fruit industry in the United States is facing yet another extinction‐threatening soil pathogen, Armillaria spp. Germplasm he collected and maintained at Clemson University is showing tolerance, and it is already being evaluated for its rootstock potential (www.nc140.org) and used in breeding efforts to combat this replant disease.

His research program quickly incorporated the newly emerging prospects made available from molecular plant genetics, an emerging science in the 1980s. Working closely with Dr Bert Abbott, his graduate students and postdoctoral colleagues were some of the first to find genes for nematode resistance in Prunus and the evg mutant that was important in identifying the MAD Box genes that control shoot growth and bud dormancy in peach. In addition, the first sequenced peach genome was from a double haploid tree that he had planted at the university research farm.

His extension emphasis is fueled by his passion for growers' success and is based on disseminating current information on orchard management systems for peaches and apples, communicating the relevance of his research findings to commercial growers, and establishing cultivar trials to promote alternative fruit crops for fruit grower diversification. His trials are extensive, often located on commercial properties to achieve the scale necessary for grower acceptance and for their adoption of the findings from that research.

Although teaching and advising have been a small part of his appointment, he has advised 17 M.S. and Ph.D. students to completion. Furthermore, more than 120 undergraduate students have been involved in the projects within his research program. Dr Reighard has also hosted 13 visiting postdoctoral scholars and scientists on sabbatical leave from the United States, China, Turkey, Spain, France, Ukraine, South Africa, and Brazil.

Dr Reighard has an extensive list of over 170 peer‐reviewed research publications, and nearly 200 additional outputs in the form of conference proceedings and book chapters, including two chapters in the major text The Peach: Botany, Production and Uses, one in Almonds: Botany, Production and Uses, and one in a Fruit Breeding series. He has given more than 500 presentations, including 170 invited presentations.

Greg has been highly active within the International Society for Horticultural Science for many years. He has published over 90 papers in Acta Horticulturae, served as an editor or on the editorial board for six symposia, served on the scientific committee for seven symposia, and was the convenor for one other symposium.

Dr Reighard has served on many committees in regional, national, and international symposia. He serves as the Peach Rootstock Coordinator for the SAES‐422 Multistate Project NC‐140, “Improving Economic and Environmental Sustainability in Tree‐Fruit Production through Changes in Rootstock Use”; is an honorary member of the Romanian Faculty Academic Council; and has been a reviewer for more than 20 different scientific journals.

Dr Reighard has been recognized numerous times throughout his career with professional awards, including the Wilder Medal by the American Pomological Society for his work in peach tree genetics and culture (2018), his election as a Fellow of the American Society for Horticultural Science (2014), the International Fruit Tree Association Fruit Researcher Award (2012), the American Pomological Society Shepard Award for the best scientific paper published in the Society's journal (in 2017, 2010, and 2004), the American Society for Horticultural Science – Southern Region Julian C. Miller Sr. Distinguished Research Award (2008), and the Godley‐Snell Award for Excellence in Agricultural Research (2008).

In regard to his extension appointment, he has prepared and published numerous extension and outreach publications, including handbooks, trade journals, magazines, newsletters, and popular press articles. Other than this, he has also organized and hosted many field days and demonstration tours for fruit tree growers.

His industry‐related achievements have been recognized with a number of awards, including the South Carolina Peach Council's “Mr. Peach” Award (2017), the Experiment Station Section Excellence in Multistate Research Award (2015), the Clemson University CAFLS Superior Service Award (2014), the National Peach Council Career Achievement Award (2013), the National Peach Council Carroll R. Miller Award (2002), and the Clemson University Board of Trustees Award for Faculty Excellence (in 2001, 2005, 2007, 2008, and 2011).

Greg is married to Angie (1980), and they have two children: Chelsea Reighard, M.D. (Ophthalmology), and Shane Reighard, M.D. (Cardiology).

In summary, Dr Greg Reighard's professional career is one of exemplary and sustained dedication to tree fruit improvement, which has resulted in high‐quality scholarship for the discipline of horticulture, and relevant and impactful deliverables for the industry – domestically and abroad.

JUAN CARLOS MELGAR

KSENIJA GASIC

IAN WARRINGTON

Assistant Professor

Associate Professor

Emeritus Professor

Clemson University

Clemson University

Massey University

Clemson, SC

Clemson, SC

Palmerston North

United States

United States

New Zealand