| 词汇 | example_english_chlorophyll-fluorescence |
| 释义 | chlorophyll fluorescencecollocation in Englishmeanings of chlorophylland fluorescenceThese words are often used together. Click on the links below to explore the meanings. Or, see other collocations with fluorescence. chlorophyll noun[U] uk /ˈklɒr.ə.fɪl/ us /ˈklɔːr.ə.fɪl/ the green substance in plants, that allows them to use the energy from ... See more at chlorophyll fluorescence noun[U] uk /flɔːˈres.əns/ us /flɔːˈres.əns/ light produced by a substance that has absorbed light or other radiation, which has a longer wavelength than the light that has ... See more at fluorescence Examples of chlorophyll fluorescenceThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Three phases of dark-recovery course from photoinhibition resolved by the chlorophyllfluorescence analysis in soybean leaves under field conditions. A new relative referencing method for crop monitoring using chlorophyllfluorescence. Regulation of light harvesting in green plants: indication by nonphotochemical quenching of chlorophyllfluorescence. In one experiment, 200 to 500 dried seeds per harvest were measured individually, and the median chlorophyllfluorescence was expressed in picoamperes per seed. Diurnal changes in leaf gas exchange and chlorophyllfluorescence in tropical tree species with increasing light requirements. In another experiment, the chlorophyllfluorescence of intact seeds was compared with that of the embryo plus endosperm. Photoinhibition of photosynthesis in plants growing in natural tropical forest gaps: a chlorophyllfluorescence study. In an attempt to define its origin, chlorophyllfluorescence was measured before and after the seed coat was dissected. Using chlorophyllfluorescence to assess the fraction of absorbed light allocated to thermal dissipation of excess excitation. Absorbed light that is unconverted is dissipated primarily as heat, with a small fraction (1-2%) re-emitted as chlorophyllfluorescence at longer (redder) wavelengths. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Chlorophyllfluorescence can easily be measured with a chlorophyll fluorometer. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. By measuring chlorophyllfluorescence, plant ecophysiology can be investigated. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Therefore, by measuring the amount of chlorophyllfluorescence, the efficiency of photochemistry and non-photochemical quenching can be assessed. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. To use measurements of chlorophyllfluorescence to analyse photosynthesis, researchers must distinguish between photochemical quenching and non-photochemical quenching (heat dissipation). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This has autonomous sensors to measure ocean temperature, salinity, chlorophyllfluorescence, carbon dioxide and nitrate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Crucially, this means chlorophyllfluorescence can be measured in the field in full sunlight. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. There is a small contribution from chlorophyllfluorescence, but this is marginal and is not the real cause of the brightness seen in infrared photographs. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For these samples it is necessary to measure chlorophyll content using chlorophyllfluorescence. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Energy can be emitted (known as energy quenching) in the form of heat (called non-photochemical quenching) or emitted as chlorophyllfluorescence. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Heat dissipation can not be totally stopped, so the yield of chlorophyllfluorescence in the absence of non-photochemical quenching can not be measured. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Want to learn more? Go to the definition of chlorophyll Go to the definition of fluorescence See other collocations with fluorescence |
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