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Measuring Coconut Palm Dry Matter Production

Published online by Cambridge University Press:  03 October 2008

D. Friend  and
R. H. V. Corley
D. Friend
Affiliation:
Lever Solomon Ltd., Yandina, Solomon Islands, Plant Science Group, Maris Lane, Trumpington, Cambridge, England
R. H. V. Corley
Affiliation:
Unilever Plantations and Plant Science Group, Maris Lane, Trumpington, Cambridge, England
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Summary

Non-destructive methods are described for estimating annual above-ground dry matter production by the coconut palm, Cocos nucifera. Leaf dry weight is estimated from the cross-sectional area of the petiole. Trunk dry weight increment is estimated from the volume increment, and a function relating trunk density to palm age. Husk and shell dry weights are estimated from air-dry weights; copra dry weight is measured after oven drying. The weight of inflorescence stalks is small, and is ignored. Leaf area can be estimated from measurement of the length and width of a sample of leaflets. These methods have been applied to two coconut variety trials, and show significant differences between varieties in crop growth rate and harvest index. The trend of leaf area with palm age is described for two varieties and the hybrid between them.

Medida de la producción de materia seca en el cocotero

Type
Research Article
Information
Experimental Agriculture , Volume 30 , Issue 2 , April 1994 , pp. 223 - 235
Copyright
Copyright © Cambridge University Press 1994

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