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Genetic Diversity In Agriculture
Beginning of essay
Genetic variation is the raw material for the plant breeder, who must
often select from primitive and wild plants, including wild species, in search
of new genes. The appearance of new diseases, new pests, or new virulent forms
of disease causing organisms makes it imperative that the plant be pr ....
Middle of essay
....ts are
under way to increase collections of plant materials in various forms. Usually
these are preserved as seeds, but living plants, pollen, and cell cultures are
also used. In most gene banks, seeds are usually preserved under conditions of
low temperature and humidity. These collections must be periodically renewed by
growing the plants and producing new seeds. Increasing emphasis is also being
placed on preserving living collections of asexually propagated crops such as
species of fruit.... |
| Number of words: 709 |
Approximate pages: 3 |
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