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Author : James Edward Douglass
Publisher : Unknown
Page : 100 pages
File Size : 54,5 Mb
Release : 1955
Category : Maple syrup
ISBN : MSU:31293010632309
Author : Jack Marshall Sheneman
Publisher : Unknown
Page : 192 pages
File Size : 47,6 Mb
Release : 1957
Category : Maple sugar
ISBN : MSU:31293031746682
Author : Melvin Ray Koelling
Publisher : Unknown
Page : 12 pages
File Size : 52,8 Mb
Release : 1968
Category : Maple sugar
ISBN : MINN:31951D02964007E
S2Some maple sap producers have wondered whether they could increase the total sap yields by tapping their trees not only in the spring but also in the fall too. Our research indicates that tapping in the fall cannot be recommended. Our study of fall tapping was begun in November 1964. Fall tapping was at least theoretically possible because temperature fluctuations like those of the normal spring tapping season occur to some extent in late fall and early winter. However, it was not known whether the volume and sugar concentration of fall-produced sap would be adequate to make such a practice feasible. Nor did we know whether fall tapping would affect the normal spring sap production from fall-tapped trees. The study reported here was set up to answer these questions. S3.
Author : Ralph D. Nyland
Publisher : Unknown
Page : 54 pages
File Size : 52,6 Mb
Release : 1968
Category : Maple syrup
ISBN : MINN:31951D01698252S
Author : Barton M. Blum,Carter Bradley Gibbs
Publisher : Unknown
Page : 12 pages
File Size : 43,6 Mb
Release : 1968
Category : Sap
ISBN : MINN:31951D02986999X
S2When sap production research was begun by the Northeastern Forest Experiment Station in Burlington, Vermont, in 1964, it became apparent that more quantified information on sap yield variation among individual trees and among years was needed to facilitate the designing of efficient experiments. One of the first projects undertaken was to record seasonal sap yields on approximately 140 individual trees on a sugarbush near Jericho, Vermont. Yields were measured in the sap seasons of 1965, 1966, and 1967. Data presented in this report are based for the most part on a random sample drawn from these trees. All sample trees were tapped with two tapholes bored to a uniform depth.S3.
Author : Barton M. Blum,Melvin Ray Koelling
Publisher : Unknown
Page : 14 pages
File Size : 47,9 Mb
Release : 1968
Category : Sap
ISBN : MINN:31951D02986998Z
S2Our recent studies of maple sap production have shown that invented tubing collection systems yield more sap than vented tubing systems, and that these increases are related to natural vacuum that develops in the unvented systems. Application of additional vacuum with a vacuum pump produced a further increase in sap yield. In these studies we used a paired-taphole type of experimental design. Two tapholes were drilled 6 inches apart on the same tree; one taphole of each pair received one treatment (vacuum) while the other was a control (no vacuum).S3.
Author : Carter B. Gibbs
Publisher : Unknown
Page : 16 pages
File Size : 41,6 Mb
Release : 1969
Category : Sap
ISBN : MINN:31951D02964030J
At the Burlington, Vermont, research unit of the Northeastern Forest Experiment Station, a study was begun in 1966 in an effort to identify the portions of the xylem that produce the most sap and the sap with the highest sugar content. The study revealed that the greatest volume of sap comes from xylem that is about 35 years old, and that the sweetest sap comes from the young xylem just beneath the bark.
Author : Barton M. Blum,Melvin Ray Koelling
Publisher : Unknown
Page : 18 pages
File Size : 44,6 Mb
Release : 1968
Category : Maple syrup
ISBN : MINN:31951D029869971
S2In the spring of 1967, a vacuum pump was installed at a sugarbush located in Underhill, Vermont. This work proceeded in two phases: an individual-tree study designed to determine if sap could be drawn out of a tree in sufficient quantities to account for large yield differences; and a large-scale study of the effects of sustained levels of vacuum on yields from a nearly commercial-size network of tubing. S3.
Author : Alex L. Shigo,Frederick M. Laing
Publisher : Unknown
Page : 416 pages
File Size : 52,9 Mb
Release : 1970
Category : Microorganisms
ISBN : STANFORD:36105119494883
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.
Author : Anonim
Publisher : Unknown
Page : 76 pages
File Size : 50,9 Mb
Release : 2024-06-30
Category : Maple sugar
ISBN : UOM:39015082117014
Author : Anonim
Publisher : Unknown
Page : 1308 pages
File Size : 46,8 Mb
Release : 1975-05
Category : Microbiology
ISBN : PSU:000056056341
Author : Melvin Ray Koelling,Barton M. Blum,Carter Bradley Gibbs
Publisher : Unknown
Page : 16 pages
File Size : 48,7 Mb
Release : 1968
Category : Sugar maple
ISBN : MINN:31951D02964008C
"Though use of plastic tubing for collecting maple sap has been hailed as the greatest advance ever made by the maple sugar industry, relatively few maple sugar producers are using tubing systems. To point the way toward greater and more efficient use of tubing systems, we summarize here the results and observations of our experiments with this method of sap collection. Certainly, if the efficiency of plastic tubing can be improved it will be more widely used, and the industry as a whole will benefit. In this report we have summarized the results and observations of tubing experiments conducted by the Northeastern Forest Experiment Station that suggest some ways in which this increased efficiency can be obtained. S3.
Author : A. H. Wood
Publisher : Unknown
Page : 20 pages
File Size : 42,5 Mb
Release : 1895
Category : Agriculture
ISBN : UIUC:30112019719357
Author : Anonim
Publisher : Unknown
Page : 120 pages
File Size : 40,7 Mb
Release : 1982
Category : Maple syrup
ISBN : UCLA:31158011365318
Author : Joseph Lawrence Hills
Publisher : Unknown
Page : 44 pages
File Size : 41,6 Mb
Release : 1904
Category : Agriculture
ISBN : UIUC:30112019891370
