Download PDF by Brian Capon: Botany for Gardeners: An Introduction and Guide

By Brian Capon

ISBN-10: 0881922587

ISBN-13: 9780881922585

A transparent, nontechnical rationalization of ways vegetation paintings, and our bestselling e-book. It succeeds in explaining the complicated tactics of plant development, services, edition, responses, and copy in easy language. because the writer meant, the gardener can come to appreciate a plant "from the plant's aspect of view."

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Extra info for Botany for Gardeners: An Introduction and Guide

Sample text

Both plants and animals use exactly the same process (cellular respiration) to extract energy from foods by "burning" them in the presence of oxygen. The gas simply diffuses into plants from their surroundings, including from pores in loose-textured soils. Humans and higher animals make a more deliberate effort to get oxygen when they breathe. When sufficient food is available for the embryo, its root pushes into the soil, there to anchor the new plant, take up needed minerals and absorb water by another, more important, method called osmosis.

A second benefit seeds derive from such an unlikely relationship is that they receive widespread dispersal. A bird can fly a considerable distance in the time it takes for a seed to pass through its intestines and, at journey's end, the seed is deposited with some fertilizer that may prove useful in getting the new plant started. Gardeners who collect seeds from their plants for use the following year, may have to use artificial scarification methods. The < previous page page_26 next page > < previous page page_27 next page > Page 27 seeds of many lupine species are a case in point.

The length of time seeds remain viable varies with species and conditions of storage. Low temperature storage is used in "seed banks" being established throughout the world to protect many plant species against possible extinction due to man's destructive activi< previous page page_30 next page > < previous page page_31 next page > Page 31 ties. This method of preservation was validated by a report of successful germination of arctic lupine seeds taken from frozen tundra soils and found to be at least 10,000 years old by radioactivecarbon dating methods.

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Botany for Gardeners: An Introduction and Guide by Brian Capon

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