Site and seed source influence jack pine yields in the Lake States.

T. F. Strong, D. F. Grigal

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Total aboveground biomass (TAB) at age 30 yr was estimated for 6 seed sources of Pinus banksiana at 8 sites in the Lake States. Initial tree spacing was 1.5 X 1.5 m. Mean TAB ranged from 70-122 Mg/ha among seed sources and from 56-130 Mg/ha among sites. A significant interaction was found between seed source and site. For 4 seed sources, TAB was positively related to total available soil water summed to 2 m. The TABs of the 2 better-producing seed sources were not as strongly related to available water, suggesting more efficient water use by these sources. Total aboveground biomass was negatively related to drought and evapotranspiration. Foliar micronutrient and macronutrient concentrations differed among sites and macronutrient concentrations differed among seed sources. Sets of site variables that explained the variation in TAB by multiple regression were dissimilar among seed sources, suggesting that each seed source adapts to the environment differently. -from Authors

Original languageEnglish (US)
Pages (from-to)705-711
Number of pages7
JournalCanadian Journal of Forest Research
Issue number7
StatePublished - Jan 1 1987
Externally publishedYes


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