Abstract:
:Carbon allocation among bunchgrass tillers was examined with carbon-11 (11CO2) steady state labelling. Labelled carbon was continuously transported from parent tillers to anatomically attached daughter tillers at a time when morphological characteristics indicated that tiller maturation had occurred. Steady state levels of import into monitored daughter tillers increased within 30 min of either defoliation or shading. Import levels decreased within 30 min of the removal of shading, but remained accelerated throughout an 84 h observation period following defoliation. A second defoliation further increased carbon import into a monitored tiller above the previously accelerated level resulting from the initial defoliation. Carbon import by vegetative tillers in the two bunchgrass species examined may be most appropriately viewed as a series of potentially accelerated import levels above a low level of continuous import.
journal_name
Oecologiajournal_title
Oecologiaauthors
Welker JM,Rykiel EJ Jr,Briske DD,Goeschl JDdoi
10.1007/BF00384285subject
Has Abstractpub_date
1985-09-01 00:00:00pages
209-212issue
2eissn
0029-8549issn
1432-1939pii
10.1007/BF00384285journal_volume
67pub_type
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