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Respiration of a perennial ryegrass crop

, : Respiration of a perennial ryegrass crop. Grassland Research Institute, Hurley: UK, Grassland Research Institute: Annual report 1975: 59-60

Using a crop enclosure apparatus, sward photosynthesis was measured in the field at intervals during crop growth, and dark respiration was then measured during the following 48 h. A steady rate of dark respiration was maintained during the first 12 h of darkness, followed by a decline to a lower rate which reached a steady value at 40 h; the 2 levels were ascribed to growth plus maintenance and to maintenance, respectively.

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