| Autor: |
Vinhal RA; Center for Agroforestry, School of Natural Resources, University of Missouri-Columbia, Columbia, MO, USA.; USDA Forest Service, Northern Research Station, Rhinelander, WI, USA., Zalesny RS Jr; USDA Forest Service, Northern Research Station, Rhinelander, WI, USA., DeBauche BS; Center for Agroforestry, School of Natural Resources, University of Missouri-Columbia, Columbia, MO, USA., Rogers ER; Center for Agroforestry, School of Natural Resources, University of Missouri-Columbia, Columbia, MO, USA.; USDA Forest Service, Northern Research Station, Rhinelander, WI, USA., Pilipović A; Institute of Lowland Forestry and Environment, University of Novi Sad, Novi Sad, Serbia., Soolanayakanahally RY; Indian Head Research Farm, Agriculture and Agri-Food Canada, Indian Head, Saskatchewan, Canada., Wiese AH; USDA Forest Service, Northern Research Station, Rhinelander, WI, USA. |
| Abstrakt: |
Successful willow ( Salix spp., hybrids and cultivars) establishment is a major determinant of their effectiveness when grown for phytotechnologies. Vertically-planted hardwood cuttings have been shown to produce adequate willow growth and survival, although site conditions at phytoremediation installations can make vertical planting methods unsuitable. The DeValix willow mat restoration technique was designed and tested as an alternative horizontal planting method that can be installed by hand in a variety of environmental applications. The DeValix technique was evaluated by testing five willow clones ("Millbrook"; "Sherburne"; "SX61"; "SX67"; "Tully Champion") grown at two phytoremediation sites (Ontonagon, MI; Manitowoc, WI) for the 2019 growing season. Differences in survival and growth were tested among sites, genotypes, and their interactions. Stem height, diameter, and number of stems per mat were compared to identify clones with greater establishment success and higher phytoremediation potential. Results demonstrated significant effects of site ( p < 0.0001) and clone ( p < 0.0001) on shoot number. Additionally, the site × clone interaction significantly affected stem height ( p = 0.0045) and diameter ( p = 0.0166). Stem density ranged from 95,000 to 212,000 stems per hectare, indicating the DeValix technique is a viable establishment method for environmental applications, including phytoremediation and shoreline stabilization. |
