Strategies for Clonal Forestry with Poplars, Aspens, and Willows

Zsuffa, L.; Sennerby-Forsse, L.; Weisgerber, H.; Hall, Richard B.

doi:10.1007/978-3-642-84813-1_5

Cited by 30 publications

(30 citation statements)

References 12 publications

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“…Mixtures of a large number of clones are considered to be similar to seedling plantations in terms of susceptibility to biotic and abiotic hazards (Libby 1981). This concept has influenced European foresters to plant polyclonal varieties of Populus species where mixed-species culture and long rotations are planned (Zsuffa et al 1993). In Germany, polyclonal varieties of aspen, which contain 5 to 20 individual clones, have been developed, registered for trade, and are widely planted (Zsuffa et al 1993).…”

Section: Social Factors and Legal Requirementsmentioning

confidence: 99%

“…This concept has influenced European foresters to plant polyclonal varieties of Populus species where mixed-species culture and long rotations are planned (Zsuffa et al 1993). In Germany, polyclonal varieties of aspen, which contain 5 to 20 individual clones, have been developed, registered for trade, and are widely planted (Zsuffa et al 1993). Generalization of this concept may also cause legislators to multiply an experimentallydetermined optimum clone number by an arbitrary safety factor (Muhs 1982).…”

Section: Social Factors and Legal Requirementsmentioning

confidence: 99%

“…For example, monoclonal plantings of Salix alba x coerulea in England are used for the production of cricket bats (Zsuffa et al 1993).…”

Section: Social Factors and Legal Requirementsmentioning

confidence: 99%

“…Exceptions may occur in situations where characteristics of only one clone provide or are compatible with the other value desired (e.g., landscape and agroforestry plantings). Thus, single or double monoclonal rows of narrow-crowned Populus clones are used as windbreaks or as part of agricultural intercropping systems (Zsuffa et al 1993).…”

Section: Other Valuesmentioning

confidence: 99%

“…Deployment in monoclonal blocks, however, may offer the best option for treating or destroying and replanting if a specific clone is susceptible to a hazard. This approach has been widely used for Salix and Populus clones in Europe (Zsuffa et al 1993) and North America and for Eucalyptus clones in Brazil (Campinhos 1984). Some theoretical modeling done by Libby (1981) suggested that monoclonal blocks can be the best, mixtures of 2 or 3 clones are often the worst, and mixtures of 7 to 25 clones may be a good strategy (depending on allowable risk rates, acceptable loss rates, spacing, and other silvicultural decisions).…”

Section: Biotic and Abiotic Hazardsmentioning

confidence: 99%

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Deploying genotypes in short-rotation plantations: Mixtures and pure cultures of clones and species

DeBell¹,

Harrington²

1993

The Forestry Chronicle

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This article discusses factors to be considered when choosing among alternative deployment options for species and clones in short-rotation plantations. Several examples of pure and mixed culture are presented and potential benefits and problems are described. The article is based on a paper presented to the International Energy Agency's Committee on Biomass Production Systems which met in conjunction with the International Poplar Commission at Zaragoza, Spain, in September 1992. Key words: biomass, intensive culture, productivity, nitrogen fixation, hazards, silviculture, operational considerations, hybrids, Populus, Alnus, Eucalyptus, Albizia.

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Section: Social Factors and Legal Requirementsmentioning

confidence: 99%

Section: Social Factors and Legal Requirementsmentioning

confidence: 99%

“…For example, monoclonal plantings of Salix alba x coerulea in England are used for the production of cricket bats (Zsuffa et al 1993).…”

Section: Social Factors and Legal Requirementsmentioning

confidence: 99%

Section: Other Valuesmentioning

confidence: 99%

Section: Biotic and Abiotic Hazardsmentioning

confidence: 99%

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Deploying genotypes in short-rotation plantations: Mixtures and pure cultures of clones and species

DeBell¹,

Harrington²

1993

The Forestry Chronicle

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Herbicide Tolerant Forest Trees

Llewellyn

2000

Molecular Biology of Woody Plants

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Bud structure and resprouting in coppiced stools of Salix viminalis L., S. eriocephala Michx., and S. amygdaloides Anders

Sennerby-Forsse¹,

Zsuffa

1995

Trees

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Fast-growing willows are cultivated as coppice in short rotation biomass plantations. The production and sustainability of the system is based on the ability of trees to resprout after repeated harvesting. The large variation in coppicing ability is due to plant genotypic differences in structure and physiology as well as environmental factors. Morphological and structural prerequisites for resprouting were compared in two shrubby willows with high coppicing ability, S. viminalis and S. eriocephala, and one treeformed species, S. amygdaloides, with low coppicing ability. The initiation and development of buds and the resprouting pattern of coppiced stools were compared. All buds were axillary in origin and showed the same principal structure consisting of one main shoot primordium and two lateral primordia. In S. viminalis and S. eriocephala the lateral buds contained several leaf primordia and sprouted shortly after the main bud. In S. amygdaloides further development of lateral buds was inhibited after formation of two budscales, and leaf primordia were not formed until the buds were forced to sprout. The number of sprouts developing after coppicing were correlated to the structure and number of buds and their position on the stools. Selfthinning rate was high and many shoots originating from lateral buds died. Most buds were located above ground on the remaining basal portions of harvested stems. No adventitious buds were found on the stools. Significantly different bud differentiation pattern and frequent sylleptic sprouting resulted in lower coppice response in S. amygdaloides compared to S. viminalis and S. eriocephala.

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Strategies for Clonal Forestry with Poplars, Aspens, and Willows

Cited by 30 publications

References 12 publications

Deploying genotypes in short-rotation plantations: Mixtures and pure cultures of clones and species

Deploying genotypes in short-rotation plantations: Mixtures and pure cultures of clones and species

Herbicide Tolerant Forest Trees

Bud structure and resprouting in coppiced stools of Salix viminalis L., S. eriocephala Michx., and S. amygdaloides Anders

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