Effects of defoliation and drought on root food reserves in sugar maple seedlings

Johnson Parker; Johnson Parker

Treesearch

Effects of defoliation and drought on root food reserves in sugar maple seedlings

Informally Refereed

Authors:

Johnson Parker, Johnson Parker

Year:

1970

Type:

Research Paper

Station:

Northern Research Station

Source:

Res. Pap. NE-169. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 8 p.

Download (PDF 1.35 MB)

Download (PDF 1.35 MB): https://research.fs.usda.gov/download/treesearch/23778.pdf

Abstract

The artificial defoliation of sugar maple (Acer. saccharum Marsh.) can cause a marked decline in root food reserves, especially starch, and an increase in the levels of the reducing sugars, fructose and glucose. Defoliation can also bring on the dieback-decline syndrome in sugar maples (Parker and Houston 1968). Two experiments designed to examine this question were conducted in 1968-69. In one, the effects of both drought and defoliation were examined; in the second, defoliation was eliminated as a variable. This paper is a report on those experiments.

Citation

Parker, Johnson. 1970. Effects of defoliation and drought on root food reserves in sugar maple seedlings. Res. Pap. NE-169. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 8 p.