M. B. Sharma , C. L. Sharma

Abstract

The present study aims to examine the quantitative relationship between juvenile wood and mature wood densities in order to look for the possibility of predicting mature wood density from that of juvenile wood and vice-versa and also to find out the suitable stratum for the comparison of juvenile wood and mature wood densities in Cedrus deodara (Roxb.) Loud. It is observed that a positive and statistically highly significant correlation exist between mean of juvenile wood and mean of mature wood density in both whole ring and first-formed early wood. Also, the mean mature wood density is highly significantly correlated separately with each of the juvenile wood rings in both whole ring and first-formed early wood except ring 1 in case of whole ring. Thus, the mature wood density can be predicted at an early age from the wood density of juvenile wood rings by taking either whole-ring or first-formed early wood.

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M. B. Sharma , C. L. Sharma

Abstract

Radial pattern of first-formed early wood tracheid length variation from pith to bark was studied with the main objectives of determining the effect of age, distance from pith, growth rate (distance/age) and ring width on first-formed early wood tracheid length among Deodar trees. There is rapid increase in tracheid length upto 10 years, afterwards the tracheid lengths either increases slowly or remains almost constant. It is positively and significantly correlated with independent variables like age, distance from pith and growth rate. The multiple correlation coefficients of these independent variables are also statistically significant.

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