Plant Dormancy: Mechanisms, Causes and Effects

Renato V. Botelho (Editor)
Research Group in Fruit Crops and Post-harvest, Department of Agronomy, State University of Mid-Western of Paraná – UNICENTRO, Brazil

Series: Plant Science Research and Practices
BISAC: SCI020000

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Dormancy is a mechanism found in several plant species developed through evolution, which allows plants to survive in adverse conditions and ensure their perpetuation. This mechanism, however, can represent a barrier that can compromise the development of the species of interest, and therefore, the success of its cultivation. It is important to understand the causes, effects, and mechanisms, as well as the technologies for overcoming dormancy of buds, seeds, and plant propagules. In this context, this publication has as a main objective of offering an in-depth view of the dormancy process in cultivated plants, based on a survey of more recent international research on the subject.

Written by several researchers from different institutions of education and research, this book presents information on the most diverse species of plants of agronomic and forestry interest. In addition to the physiological, biochemical, and genetic aspects, the chapters also address the possible causes of dormancy, as well as technological issues that are essential for the successful cultivation of several economically important species.

The focus of this publication is on temperate fruit species. Classical examples of temperate plants that present dormancy are fruit trees such as apple, pear, quince, apricot, and cherry. These pome and stone fruits are typical representatives of a deciduous temperate climate, wherein trees drop their leaves at the end of the reproductive cycle, consequently entering dormancy.

Dormancy has its control effected by factors of a hormonal nature, where the hormone promoters and growth inhibitors are balanced. Edaphoclimatic conditions also affect plant dormancy periods, for the most part through temperature changes. Other chapters in this book are dedicated especially to potatoes, vegetables, as well as forest and forage species, which makes this text a complete and comprehensive work on the subject.
(Imprint: Nova)

Preface

Chapter 1. Evolution of Dormancy: Processes of Induction and Overcoming in Fruit Trees of Temperate Climate
(Augusto José Posser and Leo Rufato, Agroveterinary Sciences Center, Santa Catarina State University, Santa Catarina, Brazil)

Chapter 2. Methods for Estimating Chilling Requirements in Fruit Crops
(Thiago Marchi1, MD, Alberto Ramos Luz, PhD, and Renato Vasconcelos Botelho, PhD, Agricultural Research and Extension Company of the State of Santa Catarina, Lageado Grande, Santa Catarina State, Brazil, and others)

Chapter 3. Assessment of Dormancy Intensity in Buds of Temperate Climate Fruit Species
(Ruy Inácio Neiva de Carvalho and Luiz Antonio Biasi, Department of Agronomy, Pontifícia Universidade Católica, Curitiba, PR, Brazil, and others)

Chapter 4. Management of Dormancy Release on Deciduous Fruit Trees under Mild Winter Conditions
(José Luiz Petri, Fernando Hawerroth and Andre Amarildo Sezerino, Epagri Agricultural Research and Rural Extension Company, Caçador, Santa Catarina State, Brazil, and others)

Chapter 5. Physiology and Management of Vines Dormancy in Tropical and Subtropical Conditions
(Alessandro Jefferson Sato, Sergio Ruffo Roberto and Renato Vasconcelos Botelho, Departamento de Ciências Agronômicas, Universidade Federal do Paraná, Palotina, Paraná State, Brazil, and others)

Chapter 6. Management, Physiology and Genetics of Potato Tuber Dormancy
(Jackson Kawakami, Luiz Henrique Ilkiu Vidal and Giovani Olegário da Silva, Department of Agronomy, Midwestern Parana State University, UNICENTRO, Guarapuava, Paraná State, Brazil, and others)

Chapter 7. Dormancy in Seeds and Propagules of Vegetables
(Cristhiano Kopanski Camargo, Juliano Tadeu Vilela de Resende, André Ricardo Zeist, André Gabriel and Ricardo Antonio Zeist, Department of Agronomy, Midwestern Parana State University, UNICENTRO, Guarapuava, Paraná State, Brazil)

Chapter 8. Overcoming Seed Dormancy of Forest Species in Mixed Ombrophylous Forests
(Luciano Farinha Watzlawick, Joelmir Augustinho Mazon and Richeliel Albert Rodrigues Silva, Department of Agronomy, Midwestern Parana State University, UNICENTRO, Guarapuava, PR, Brazil, and others)

Chapter 9. Seed Physical Dormancy of Two Cultivars of Alfalfa (Medicago sativa) and White Clover (Trifolium repens): Similarities and Differences
(Alberto A. Galussi, María E. Moya, Felicia D. Zuriaga and Liliana R. Zimmermann, Faculty of Agricultural Sciences, Entre Ríos State University, Entre Ríos, Argentina)

Chapter 10. Biochemical and Physiological Aspects of Dormancy in Tempered Fruits Trees
(Silvia Scariotto, Américo Wagner Júnior and Idemir Citadin, Department of Agronomy, Federal Technological University of Paraná State, Pato Branco, Paraná State, Brazil, and others)

Index

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