Shedding of Plants Parts

Shedding of Plants Parts

1st Edition - January 28, 1973

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  • Editor: T.T. Kozlowski
  • eBook ISBN: 9780323145602

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Shedding of Plant Parts focuses on the anatomical, physiological, and ecological features of shedding of vegetative and reproductive parts of plants. This book encompasses both natural and induced shedding. Organized into 12 chapters, this book first outlines the extent of shedding of plant cells, tissues, and organs and summarizes the biological and economic implications of such shedding. Separate chapters follow that discuss anatomical and histochemical changes in leaf abscission; the physiological ecology and internal regulation of abscission; and the shedding of shoots, branches, bark, roots, pollen, seeds, and reproductive structures of forest trees. This book also explains the anatomical changes in abscission of reproductive structures, chemical thinning of flowers and fruits, and chemical control of fruit abscission. This book will be valuable to plant anatomists, pathologists, and physiologists, and to agronomists, arborists, biochemists, ecologists, entomologists, foresters, horticulturists, landscape architects, meteorologists, and soil scientists.

Table of Contents

  • List of Contributors


    1. Extent and Significance of Shedding of Plant Parts

    I. Introduction

    II. Shedding of Various Plant Parts

    III. Importance of Natural and Induced Shedding of Plant Parts


    2. Anatomical and Histochemical Changes in Leaf Abscission

    I. Leaf Longevity

    II. Senescence and Abscission

    III. Scope of Anatomical Research

    IV. The Abscission Zone

    V. Structural Changes in the Abscission Zone

    VI. Histochemical Studies of Cell Walls


    3. Physiological Ecology of Abscission

    I. Introduction

    II. Ecological Factors and Their Physiological Implications for Abscission


    4. Internal Factors Regulating Abscission

    I. Introduction

    II. The Signal

    III. What Is Senescence?

    IV. The Stimulus for Senescence

    V. The Processes of Abscission

    VI. The Regulation of Ethylene Production

    VII. The Model for Abscission


    5. Shedding of Shoots and Branches

    I. Introduction

    II. Abortion of Shoot Tips

    III. Shedding of Lateral Branches


    6. Development and Shedding of Bark

    I. Introduction

    II. Bark Tissues

    III. Bark Development


    7. Shedding of Roots

    I. Introduction

    II. Life History of Roots

    III. Control of Root Growth

    IV. Loss of Tissue from Healthy Roots

    V. Natural Death of Roots

    VI. Death of Roots Associated with the Nature of the Soil and Fertilization

    VII. Death of Roots as a Result of Factors Affecting the Aerial Parts of the Plant

    VIII. Damage to Roots Associated with Soil Animals

    IX. Death of Roots Caused by Soil Fungi


    8. Shedding of Pollen and Seeds

    I. Introduction

    II. Pollen

    III. Pollination

    IV. Seeds

    V. Conclusions


    9. Shedding of Reproductive Structures in Forest Trees

    I. Introduction

    II. Abscission or Death prior to Anthesis

    III. Abscission between Anthesis and Fertilization

    IV. Abscission or Death between Fertilization and Seed Maturity

    V. The Practical Implications of Abscission of Reproductive Structures in Forest Trees


    10. Anatomical Changes in Abscission of Reproductive Structures

    I. Introduction

    II. Peach-Prunus persica L. (Lott and Simons, 1964)

    III. Montmorency Cherry-Prunus cerasus L. (Lott and Simons, 1966)

    IV. Starking Hardy Giant Cherry-Prunus avium L. (Lott and Simons, 1968b)

    V. Wilson Delicious Apricot-Prunus armeniaca L. (Lott and Simons, 1968a)


    11. Chemical Thinning of Flowers and Fruits

    I. Introduction

    II. History of Thinning Sprays

    III. Chemical Thinning of Apples (Malus punila Mill.)

    IV. Chemical Thinning of Pears (Pyrus communis L.)

    V. Chemical Thinning of Stone Fruits

    VI. Chemical Thinning of Other Fruits

    VII. Conclusions


    12. Chemical Control of Fruit Abscission

    I. Introduction

    II. Screening Program for Abscission-Inducing Chemicals

    III. Effect of Ethephon on Fruit Abscission

    IV. Effect of Cycloheximide (CHI) on Fruit Abscission

    V. Effect of Growth Regulators on Fruit Abscission

    VI. Side Effects of Abscission-Inducing Chemicals on Fruit Trees

    VII. General Discussion and Conclusions


    Author Index

    Subject Index

Product details

  • No. of pages: 572
  • Language: English
  • Copyright: © Academic Press 1973
  • Published: January 28, 1973
  • Imprint: Academic Press
  • eBook ISBN: 9780323145602

About the Editor

T.T. Kozlowski

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