Seed Dormancy and Germination /
| Autor principal: | |
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| Autor Corporativo: | |
| Formato: | eBook |
| Lenguaje: | English |
| Publicado: |
Boston, MA :
Springer US,
1988.
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| Colección: | Tertiary Level Biology
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| Materias: |
Tabla de Contenidos:
- 1 The Seed
- The role of the seed
- Germination
- The germination test
- Dormancy
- 2 Seed Formation
- Morphological aspects of seed formation
- Gymnosperms
- Angiosperms
- Physiological and biochemical aspects of seed formation
- Experimental approaches to embryogenesis
- 3 Seed Structure and Composition
- Some seed types
- Dehiscent seeds
- Indehiscent seeds
- Seed size
- Seed reserve substances
- 4 Germination
- The physical requirements for germination
- The morphology of seed germination
- Comparative morphology of seedlings
- The physiology of germination
- Imbibition
- Growth and seedling establishment
- Etiolation
- Development of the photosynthetic machinery
- The biochemistry of germination
- Mobilization of reserves
- Protein synthesis
- 5 The Mechanisms of Seed Dormancy
- Dormancy caused by embryo coverings
- The restriction of gaseous exchange by embryo coverings
- The restriction of water uptake by embryo coverings
- Mechanical restriction of embryo growth
- Water-soluble inhibitors in the embryo coverings
- Dormancy from the failure to mobilize extra-embryonic food reserves
- Embryo dormancy
- Underdeveloped and undifferentiated embryos
- The mechanism of embryo dormancy
- Endogenous inhibitors in embryo dormancy
- The possession of more than one dormancy mechanism
- 6 The Breaking of Seed Dormancy
- Dormancy breaking by single factors
- Chilling
- The mechanism of dormancy breaking during chilling of hazel seeds
- Dry storage and/or exposure of dry seeds to elevated temperatures
- Light
- Leaching
- Scarification
- Treatment with chemicals
- Dormancy breaking by fluctuating temperature
- Dormancy breaking by two or more factors
- Molecular mechanisms of the breaking of seed dormancy
- 7 Seeds in the Natural Environment
- The seed bank of the soil
- The effect of light in dormancybreaking in seeds in the seed bank
- The effects of seasonal conditions on the germination of seeds in the seed bank
- Laboratory investigation of germination characteristics of the species in the British flora
- Seed production and dispersal
- 8 Seed Viability and Vigour
- Viability
- Vigour
- Factors affecting the maintenance of viability and vigour during storage
- Moisture content
- Temperature
- Oxygen concentration
- The mechanism of ageing
- Seed longevity
- 9 Seed Technology
- Seed quality and seed testing
- Seed and crop production
- Seed germination and establishment
- Seed production
- Harvest, postharvest treatments and storage
- Genotype preservation in seed banks
- Seed technology and plant breeding
- Vernalization
- Seed technology in the developing world
- 10 An Experimental Approach to Seed Biology
- The procedure for an investigation of the seed biology of the natural flora of a temperate zone
- Seed collection
- Seed treatments
- Germination tests
- Further ways for the investigation and breaking of seed dormancy
- Problems with infected seed samples
- The seed bank in the soil
- Seed biology as an open-ended research problem
- References.