Effects of spring defoliation on first-year growth of young loblolly and slash pines

David R. Weise; Ragnar W. Johansen; Dale D. Wade

doi:10.2737/SE-RN-347

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Effects of spring defoliation on first-year growth of young loblolly and slash pines

Informally Refereed

Authors:

David R. Weise, Ragnar W. Johansen, Dale D. Wade

Year:

1987

Type:

Research Note

Station:

Pacific Southwest Research Station

DOI:

https://doi.org/10.2737/SE-RN-347

Source:

Research Note SE-347. USDA-Forest Service, Southeastern Forest Experiment Station. 4 p

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Download (PDF 254 KB): https://research.fs.usda.gov/download/treesearch/42643.pdf

Abstract

Partial and complete spring defoliation reduced first-year diameter, height, and volume growth of 4-year-old loblolly and slash pines. Early and late growth differed significantly between defoliation levels (P=0.05). However, the number of height growth flushes produced during the 1986 growing season was not affected by defoliation treatments. No mortality occurred during 1986. Mean volume growth loss of the 100-percent defoliated trees was 68 and 56 percent, respectively, for loblolly and slash pines.

Keywords

Pinus elliottii, Pinus taeda, crown scorch, fire damage, growth effects

Citation

Weise, David R.; Johansen, Ragnar W.; Wade, Dale D. 1987. Effects of spring defoliation on first-year growth of young loblolly and slash pines. Research Note SE-347. USDA-Forest Service, Southeastern Forest Experiment Station. 4 p.