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Structure of the Bark and Clonal Variability in Hevea brasiliensis Muell. Arg. (Willd. ex A. Juss.)

D. PREMAKUMARI, G. M. JOSEPH and A. O. N. PANIKKAR
Annals of Botany
Vol. 56, No. 1 (July 1985), pp. 117-123
Published by: Oxford University Press
Stable URL: http://www.jstor.org/stable/42774153
Page Count: 7
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Structure of the Bark and Clonal Variability in Hevea brasiliensis Muell. Arg. (Willd. ex A. Juss.)
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Abstract

Detailed studies have been made on the structure of the bark of ten Hevea clones and the clonal variabilities with regard to the density and size of ray groups, density of laticifers per row per unit circumference of the tree, diameter of laticifers and the extent of connection between laticifers. Clonal variability was highly significant with regard to the density of ray groups, ray height, ray width in the laticifer layer and the laticifer characters. The influence of ray characters on the orientation of laticifers and thereby its quantity is discussed. The scope of using anatomical parameters for clone identification is examined.

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