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Google圖書搜尋
Some Effects of Paraformaldehyde on Wood Surrounding Tapholes in Sugar Maple Trees
Alex L. Shigo
Frederick M. Laing
出版
Northeastern Forest Experiment Station, Forest Service, U.S. Department of Agriculture
, 1970
URL
http://books.google.com.hk/books?id=EICdzdJ0VUIC&hl=&source=gbs_api
EBook
FULL_PUBLIC_DOMAIN
註釋
S2Pills of paraformaldehyde (trioxymethylene) are commonly used in tapholes in sugar maple trees (Acer saccharum Marsh.) to increase the yield of sap collected for making syrup and sugar (2, 4, 5, 8). The explanation offered for this increase in sap yield is that microorganisms in the tapholes (7) cause premature decline and stoppage of the sap flow (1, 6), but that paraformaldehyde increases sap yield by inhibiting their growth (2). But what happens to the tree? To determine the effects of paraformaldehyde on the tissues surrounding tapholes, and on the microorganisms in those tissues, sugar maple trees were dissected and studied. This paper is a report on that study.S3.