Compensation Point


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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.

References in periodicals archive ?
max], light saturation (Lsat), light compensation point (Lcp), dark respiration rate (Rd), initial slope or quantum yield efficiency (IS), stomatal conductance at Amax (gs) and transpiration rate at Amax (E).
Adaptive radiation of photosynthetic physiology in the Hawaiian lobeliads: Light regimes, static light responses, and whole-plant compensation points.
Estimated times to exhaustion and power outputs at the gas exchange threshold, physical working capacity at the rating of perceived exertion threshold, and respiratory compensation point.
The relationships among critical power determined from a 3-min all-out test, respiratory compensation point, gas exchange threshold, and ventilatory threshold.
X-value is the corresponding first compensation point.
The compensation data was computed from the compensation points.
Light compensation point was determined by substituting a zero apparent Pn to the fitted equation of each treatment.
The light compensation point was calculated as the PFD when the photosynthetic rate = 0 [mu] mol C[O.
secundiflora is a sun plant and would have a high maximum photosynthetic rate, light saturation point, light compensation point, respiration, conductance, and transpiration compared to shade adapted plants.
KENT have launched an appeal to the four rival counties - including Durham-who blocked the award of five compensation points following their abandoned County Championship fixture against Worcestershire.
KENT have launched an appeal to the four rival counties who blocked the award of five compensation points following their abandoned County Championship fixture against Worcestershire.

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