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- Title
Respiratory rates in roots of detopped and intact corn.
- Authors
Crapo, Norman L.; Sowmer, Richard G.
- Abstract
The effect of detopping corn plants on respiratory rate of their roots was tested in an isolated root environment. "Detopped roots" were compared to roots of intact plants simultaneously. Root respiratory rates of intact plants increased linearly with time. The carbon dioxide evolution increased after detopping; this increase was not statistically significant for at least two days and significant after seven days. A compartmental analysis of soil respiration is valid, therefore, if the carbon dioxide rates are determined within two days after sampling. The subsequent respiratory rise appears to be associated with senescence of the root system.
- Subjects
CORN roots; RESPIRATION; PHYSIOLOGY; CARBON dioxide; SOIL testing; EVOLUTIONARY theories
- Publication
Oikos, 1973, Vol 24, Issue 3, p465
- ISSN
0030-1299
- Publication type
Article
- DOI
10.2307/3543823