Carbon allocation in Euphorbia esula and neighbors after defoliation
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Authors: B. E. Olson, and R. T. Wallander
Date: 1999
Journal: Canadian Journal of Botany
Volume: 77
Number: 11
Pages: 1641-1647
Summary of Methods: A short term greenhouse study examined the effects of species competition and clipping on carbon allocation in leafy spurge plants grown with Idaho fescue, Kentucky bluegrass and alfalfa plants. Ninety days after planting one of four clipping treatments was assigned (no clipping on both plants, leafy spurge clipped neighbor unclipped, leafy spurge unclipped neighbor clipped, leafy spurge clipped neighbor clipped) as a clipping intensity of 75%. Twenty-four hours after clipping all plants were treated with labeled carbon, with plants from half of the pots collected 24 hours after labeling and the remaining pots were collected 72 hours after labeling for carbon tracking to be determined.
Article Summary / Main Points: Whole-plant allocation of carbon in roots and shoots of leafy spurge was not affected by clipping treatments. The carbon allocated to the shoots of leafy spurge was higher when it grew with Kentucky bluegrass than with others species. Clipping did not affect carbon allocation to the roots of leafy spurge. Following clipping treatments, leafy spurge shoots had an increase in relative enrichment of carbon and this was not affected species of neighbor.
Vegetation Types: All Vegetation Types
MLRA Ecoregions: Not Applicable
Agrovoc Control Words: Weeds Rangelands Grazing
Article Review Type: Refereed
Article Type: Experimental Research
Keywords: noxious range weed, carbon allocation, grazing tolerance, defoliation, leafy spurge, plant competition, medicago sativa, festuca idahoensis, poa pratensis l.
Annotation: The neighboring plants used in this study were not actively competing for the resources. This study can be used to explain effects of grazing though it is limited in applicability to this database.
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