Selecting Hybrid Poplars to Reduce Disease Risk May Also Reduce Biomass Yield
Hybrid poplars representing 107 clones were screened for growth and resistance to Septoria musiva to determine the cost, in terms of lost biomass, of reducing disease risk. Reducing the risk of septoria canker by selecting only highly resistant clones reduced biomass by as much as 26% after 3 years. Clones with parentage in the section Tacamahaca were generally the highest yielding; however, they were more susceptible to infection by Septoria musiva than clones in the sections Aigeiros. When selecting popluar clones, growers need to balance growth potential with disease risk throughout the projected rotation period. Since tree death or stem breakage of susceptible clones frequently occurs, selection should be based primarily on canker resistance. Tree Planters' Notes 44(3):128-131; 1993.
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Author(s): Michael E. Ostry, W. E. Berguson
Publication: Tree Planters' Notes - Volumes 44, Number 3 (1993)
Section: Peer Reviewed and Refereed Articles
Volume: 44
Number: 3
