Sap Flow, Wounding, & Compartmentalization in Maple
How does a tree respond to the wound created by a taphole, and what does that mean for future sap production?
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How does a tree respond to the wound created by a taphole, and what does that mean for future sap production?
Tapping depth strongly influences both sap yield and wounding. Numerous studies have focused on the amount of sap produced with ifferent depths, the most extensive work conducted by Morrow (1963), who found a tendency for increasing sap yields with increasing taphole depth. However, this work was conducted on gravity with 7/16” tapholes, so is less informative to most producers using 5/16” spouts and vacuum.
Presents research on taps and tapping practices to maximize yield. Also explains sap flow and tree wounding.
Dr. Tim Perkins presents an overview of recent research activities at the UVM Proctor Center at the 2020 Vermont Maple Conferences.
Dr. Abby van den Berg presentation on important factors to achieve high maple sap yields. Given at the December 2020 Vermont Maple Conference.
Dr. Abby van den Berg presenting on research on early tapping and taphole longevity strategies on sap yield and non-conductive wood (NCW) formation in maple trees at the Dec 2020 Vermont Maple Conference.
Actual yields in many maple operations are often lower than those achievable under optimum conditions. Dr. Abby van den Berg, Research Associate Professor with UVM’s Department of Plant Biology and Proctor Maple Research Center, presents practices to narrow this gap, from tree to sugarhouse.
Dr. Tim Perkins, Director of UVM’s Proctor Maple Research Center, shares a review of the past year at PMRC and a collection of recent findings on topics related to sap and syrup production.
Dr. Abby van den Berg, Research Associate Professor with UVM’s Department of Plant Biology and Proctor Maple Research Center, shares the results of a multi-year experiment conducted by the University of Vermont Proctor Maple Research Center to determine the net yields and impacts of fall and early-winter tapping, with and without subsequent “freshening” of the tapholes by re-drilling them wider and/or deeper.
How to collect the most sap possible using efficient techniques.