1Indian Institute of Natural Resins and Gums, Ranchi – 834 010, Jharkhand
2Dr. Y S Parmar University of Horticulture and Forestry, Solan – 173 230 (H. P.)
*E-mail: scsharma09@yahoo.co.in
Online published on 6 July, 2013.
Seven different types of freshening tools were designed and developed using Pro Engineer CAD software and evaluated in actual field conditions. The developed tools were user friendly. The tools were evaluated for freshening holes made for tapping pine resin using bore hole technique from chir pine. Use of all the developed freshening tools led to increase in resin yield over control. Out of seven different freshening tools developed and tested, scissor and blade type freshening tool showed appreciable increase in resin yield up to the second freshening and is recommended for use in the resin tapping operation of bore hole technique for enhancing in resin yield.
Freshening tool, bore hole technique, resin tapping, chir pine
