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Age structure and age-related performance of sulfur cinquefoil (Potentilla recta).

Posted date: January 03, 2007
Publication Year: 
2006
Authors: Perkins, Dana L.; Parks, Catherine G.; Dwire, Kathleen A.; Endress, Bryan A.; Johnson, Kelsi L.
Publication Series: 
Miscellaneous Publication
Source: Weed Science. 54: 87-93

Abstract

Age distributions of sulfur cinquefoil populations were determined on sites that were historically grazed, cultivated, and mechanically disturbed. From 12 sites, a total of 279 reproductively active plants were collected and aged by using herbchronology (counting rings in the secondary root xylem of the root crown) to (1) estimate the age structure of the populations, (2) relate plant size and flower production to plant age, and (3) examine the relation of population age structure to environmental variables and disturbance history. Results indicated that the mean age for all sampled plants was 3.5 (± 1.74 SD) yr and ranged from 1 to 10 yr. Age was not related to number of flowers, plant size (number of stems per plant or plant height), or site disturbance type but was positively correlated with site elevation (P

Citation

Perkins, Dana L.; Parks, Catherine G.; Dwire, Kathleen A.; Endress, Bryan A.; Johnson, Kelsi L. 2006. Age structure and age-related performance of sulfur cinquefoil (Potentilla recta). Weed Science. 54: 87-93