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Container Growing Pitch Pine: Germination, Soil pH, and Outplanting Size

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Pitch pine cones may be picked when green, 2 weeks to 1 month before apparent ripeness, in order to avoid rodent predation. The resulting seedlings grow as well as those from cones picked later. The mean number of germinants per cone for 46 test families from Cape Cod, Fire Island, and New Jersey was 45.5 when seeds were planted in Leach tubes and started in a greenhouse. Seedlings growing in peat/vermiculite/sand (1:1:1) and amendments at pH 4.8 were significantly larger in volume than seedlings growing at higher or lower pH, and they suffered less damping off than those at higher pH. Seedlings should be grown to minimum stem diameter of 3.0 mm before outplanting. There is evidence of ecotypic differentiation between populations on dissimilar sites at Cape Cod. North. J. Appl. For. 8(2):63-68.
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Document Type: Journal Article

Affiliations: Department of Environmental Resources, Cook College, Rutgers University, New Brunswick, NJ 08903

Publication date: 1991-06-01

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  • Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Northern Journal of Applied Forestry covers northeastern, midwestern, and boreal forests in the United States and Canada.
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