| 单词 |
compensation point |
| 释义 |
compensation point
compensation point n (Botany) botany the concentration of atmospheric carbon dioxide at which the rate of carbon dioxide uptake by a photosynthesizing plant is exactly balanced by its rate of carbon dioxide release in respiration and photorespiration TranslationsCompensation Point
compensation point[‚käm·pən′sā·shən ‚pȯint] (botany) The light intensity at which the amount of carbon dioxide released in respiration equals the amount used in photosynthesis, and the amount of oxygen released in photosynthesis equals the amount used in respiration. Compensation Point in plants, a physiological indicator of the light intensity at which a leafs absorption of CO2 during photosynthesis balances its production of CO2 during respiration. The compensation point of sciophilous plants is significantly lower than that of photophilic plants. Sometimes the term “compensation point” refers to the combination of the general conditions of light and temperature as a result of which the plant’s formation and consumption of organic matter are balanced over a 24-hour period. |
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