Some Defination

Some important definitions OF Silviculture


Advance growth:
Advanced growth is that which appear before any special measures are taken to establish new growth. e.g. Seedling, Sapling, Poles of species and overwood that have become established naturally before the commencement of regeneration felling.

Flluted stem:
When a stem seems irregular involution (sudden happen) and swelling in section above the basal swell it is called flutted stem.

Forking:
Forking is a situation where the main stem has more than one leader, giving usually a large crown, but from the view point of timber production, it is undesirable charecter / a most unsatisfactory bole.
It is usually caused due to injury / usually repeated injury in the growing apical meristem.
E.g. Sal, Mehogony etc.

Die bake of seedling:
There are some species among which sal is the notorious (KzL¨vZ) in which seedling usually remains a number of years without making much above ground growth. Growth of the original shoot more or less stops and in the next reason thin whippy new shoots little or no bigger grows up from the ground level on deeper , the process containing over 20 years without the development of a permanent leader. This phenomenon is called die back of seedling. E.g. Salmalia spp., Terminalia spp.

Mangrove roots:
The special adoption of the tree of tidal estuaries(‡gvnbv) to their environment are particularly apparent in their root system , the modification evidently primarily serving to meet an inadequate aeration consequent an a water logged or even sub merged soil. e.g.
Stilt root _ Rhizophora spp.
Aerial knu root _ Heritiera spp.
Pneumetaphores _ Bruguiera spp.

Whorled branching: