| geotropism | Directional growth of a plant organ in response to a gravitational field roots grow downwards, shoots grow upwards. Achieved by differential growth on the sides of the root or shoot. A gravitation field is thought to be sensed by sedimentation of statoliths (starch grains) in root caps. (18 Nov 1997) |
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| geotropism |
an orienting response to gravity
출처: wordnet.princeton.edu/perl/webwn
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| geotropism |
Gravitropism (or geotropism) is a turning or growth movement by a plant in response to gravity. Charles Darwin was one of the first to document that roots show positive gravitropism and stems show negative gravitropism. That is, roots grow in the direction of gravitational pull (i.e., downward) and stems grow in the opposite direction (i.e., upwards). This behaviour can be easily demonstrated with a potted plant. ...
출처: en.wikipedia.org/wiki/Geotropism
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| geotropism |
Not a commonly used term but it is the response to gravity. Plant parts that grow downward, such as the roots, would be positive geotropism. A negative geotropism would be the stems growing upward.
출처: www.ukallotments.info/advice/glossary/glossary-g.p...
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| geotropism | an orienting response to gravity |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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