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Early Exploitation of Hevea Rubber Trees by Puncture and Short-Cut Tappings

Published online by Cambridge University Press:  03 October 2008

U. P. de S. Waidyanatha  and
D. K. Angammana
U. P. de S. Waidyanatha
Affiliation:
Rubber Research Institute of Ceylon, Dartonfield, Agalawatta, Sri Lanka
D. K. Angammana
Affiliation:
Rubber Research Institute of Ceylon, Dartonfield, Agalawatta, Sri Lanka
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Summary

Puncture tapping and one-eighth spiral (S/8) tapping, both combined with Ethrel stimulation, were compared with conventional half spiral (S/2) tapping of immature Hevea trees. Stimulated puncture-tapped trees in some experiments yielded more rubber and had much more sucrose in the latex than unstimulated half-spiral tapped trees. Yields of puncture-tapped trees also increased with increase in the quantity of Ethrel and the number of punctures, but were not affected by the size of puncture. Girth increments of the trees and percentage dry rubber content of the latex were approximately equivalent in all three methods of tapping.

Type
Research Article
Information
Experimental Agriculture , Volume 17 , Issue 3 , July 1981 , pp. 303 - 309
Copyright
Copyright © Cambridge University Press 1981

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References

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