Intra, Inter-tree and Inter-location Variations in Wood Anatomical Traits and Specific Gravity in Seed Raised Plantations of <I>Dalbergia sisso</I>o Roxb.

Abstract

Present paper deals with Intra-, Inter-tree and Inter-location variations in wood anatomical traits and specific gravity in seed raised plantations of Dalbergia sissoo Roxb. The materials were procured from State Forest Department, Punjab. The sites were located at Kharkan, Hoshlarpur (Site-I), Dhlrowal, Hoslyarpur (Site-II), Kamalpur, Amrltsar (Site-III) and Dharmkot, Ferozpur (site-IV). In all 12 tress were considered for the study. Intra-tree, both axial and radial, and inter-tree variations were significant for most of the wood traits except wall thlckness and specific gravity for Intra-tree radial variations. The increasing trend was obtained from pith to periphery and bottom to top for most of the wood traits. F-test showed that variations due to site were significant for wood anatomical parameters and specific gravity. It indicates that site had impact on wood anatomical properties and specific gravity. The sites of lower rain fall showed higher wood anatomical dimensions. Further, the trees of different sites were clustered together and indicated the influence of genetics on the wood traits. It showed that genetic diversity played an important role even at the similar type of environment for wood-traits in seed raised plantations of Dalbergia sissoo