Southern Research Station

Title: Survival and growth of 31 Populus clones in South Carolina

Author: Coyle, David R.; Coleman, Mark D.; Durant, Jaclin A.; Newman, Lee A.

Date: 2006

Source: Biomass and bioenergy. 30: 750-758

Description: Populus species and hybrids have many practical applications, but clonal performance is relatively undocumented in the southeastern United States outside of the Mississippi River alluvial floodplain. In spring 2001, 31 Populus clones were planted on two sites in South Carolina, USA. The sandy, upland site received irrigation and fertilization throughout the growing season, while the bottomland site received granular fertilizer yearly and irrigation in the first two years only. Over three growing seasons, tree survival and growth differed significantly among clones at both sites. Hybrid clones I45/51, Eridano, and NM6 had very high survival at both sites, while pure eastern cottonwood (P. deltoides) clones consistently had the lowest survival. Nearly all mortality occurred during the first year. The P. deltoides clone WV416 grew well at both sites, P. deltoides clones S13C20 and Kentucky 8 grew well at the bottomland site, and hybrids 184-411 and 52-225 grew well at the upland site. Based on both survival and growth, clones 311-93, S7C15, 184-411, and WV416 may warrant additional testing in the upper coastal plain region of the southeastern US. Kentucky 8 and S13C20 had excellent growth rates, but initial survival was low. However, this was likely due to planting stock quality. We emphasize this is preliminary information, and that clones should be followed through an entire rotation before large-scale deployment.

Keywords: cottonwood, diameter, hybrid, irrigation, stem volume

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Citation

Coyle, David R.; Coleman, Mark D.; Durant, Jaclin A.; Newman, Lee A.  2006.  Survival and growth of 31 Populus clones in South Carolina.   Biomass and bioenergy. 30: 750-758