The Growth of Bulbs

Editor's ForewordPrefaceChapter l Bulbs as crop plants: their origin and present distribution I. World production of bulbs II. Parent species and classification of important bulb crops III. The bulbous habitChapter 2 Bulb structure, morphology, development and periodicity I. The Hippeastrum bulb type II. The tulip bulb type III. The Narcissus bulb type IV. Morphology of above-ground parts, Narcissus and tulip V. Structure of other bulbous plants VI. Apical structure VII. Root systems VIII. "Droppers" in tulip IX. Development and periodicityChapter 3 Growth and productivity I. General aspects of growth II. Effects of various factors on growth III. Environmental effects IV. Respiration in the field V. Spacing and competition VI. Natural communitiesChapter 4 The initiation and growth of bulbs I. Daughter bulb initiation and early growth II. Later growth of bulbs III. Yield improvement IV. Selection on the basis of daughter bulb growth V. Temperature and bulb production VI. The appearance of tulip bulbs VII. Artificial induction of daughter bulbsChapter 5 Flower initiation and differentiation I. Time of flower initiation II. Stages of flower differentiation III. Factors affecting initiation and differentiation IV. Rates of differentiation V. Floral abnormalities VI. Temperature and morphogenesis in Iris VII. Temperature treatment after initiationChapter 6 The storage of bulbs I. Warm storage of Narcissus and tulip II. Low-temperature requirement of Narcissus and tulip III. Storage of Narcissus bulbs for forcing IV. Low temperature and field flowering of Narcissus V. Storage of tulip bulbs for forcing VI. Hot-water treatment and warm storage VII. Hyacinth preparation and storage VIII. Storage of Iris bulbs for forcing IX. Storage of lily bulbs X. Storage of Nerine bulbs XI. Storage of small Iris bulbs to prevent flowering XII. Storage of bulbs for export to the southern hemisphere XIII. Storage of Narcissus and tulip bulbs for replanting XIV. Blindstoken of tulipChapter 7 Post-storage development I. Effect of temperatures after pre-cooling II. Duration of cold treatment III. General aspects of forcing Narcissus and tulip IV. Forcing of hyacinth V. Forcing of Iris VI. Forcing of lily VII. Growth of Narcissus and tulip at high temperature VIII. Growing bulbs in artificial light IX. Dry matter changes in tulips and Narcissus in the glasshouseChapter 8 Physiology and metabolism 1. Bulb Metabolism I. Weight losses and respiration II. Respiration of Iris bulbs III. Carbohydrate changes in bulbs IV. Peroxidase and catalase activity in Iris V. Changes in Iris bulb metabolism during maturation VI. Respiration in other bulbs VII. Effect of ethylene on respiration VIII. Dormancy 2. The Metabolism of the Rooted Plant I. Soils and soil factors, root growth II. Water relations and stomata III. Mineral nutrition and salt uptake IV. Chemical composition V. Translocation VI. Effects of light and temperature VII. Carbohydrate metabolism VIII. Protein synthesis and nitrogen metabolism IX. Senescence and dormancy X. Hormones and growth retardants XI. Aspects of developmentChapter 9 Physiological disorders I. Disorders of Narcissus II. Disorders of tulip III. Disorders of hyacinth IV. Disorders of Iris V. Disorders of lily VI. Chemical injuryChapter 10 Pests and diseases of bulbs 1. Bulb Pests I. Narcissus pests II. Tulip pests III. Iris pests IV. Pests of other bulbs 2. Bulb Diseases I. Fungal and bacterial diseases II. Virus diseases of bulbsChapter 11 The futureReferencesAuthor IndexSubject Index