Propagation technology for forest trees
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8 word format
document in English
ecology & environment
presentation
published 28/11/2008
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level : Advanced
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Summary
There are six major kinds of propagules now available for the reproduction of forest trees: seeds, sprouts, grafts, cuttings, tissue-culture plantlets, and somatic embryos. Each has two or more subclasses, and each has increasingly understood advantages, disadvantages, and uses. For several of these kinds of propagule, the maturation state and physiological condition of the starting material can vary substantially, with important consequences. These two concepts are discussed in general and with respect to each kind of propagule. The terminology currently in use is not always clear, and is sometimes conflicting. Alternative terminology is noted where such confusion is common.
Table of Contents
- Introduction.
- Seeds.
- Natural regeneration.
- Arti'cial regeneration.
- Orchard seeds.
- Sprouts.
- Physiological condition and maturation state.
- Maturation as a developmental genetic process.
- The effects of maturation state on the performance of propagules.
- Seedlings.
- Grafts.
- Seed orchards and breeding orchards.
- Cuttings.
- Unrooted cuttings.
- Stecklings.
- Tissue culture.
- Plantling production.
- Adventitious plantlets.
- Axillary plantlets.
- Plantlet care and development.
- Somatic ebryogenesis.
- Emblings.
- Somatic seedlings.
- Conclusion.
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