Influence of Major Environmental Parameters on Wood Growth of Swampy and Non Swampy Myristicaceae Members: A Study in Karnataka

摘要

The present study is an attempt to assess the influence of major environmental parameters like rainfall, temperature and humidity on wood growth of swampy and non swampy species of myristicaceae. Based on the literature, an exhaustive list of swamps,which are having both swampy and non-swampy in the Karnataka was prepared. Then through field visits five locations were selected for the present study. At each location trees (having uniform girth) were selected randomly. Wood core samples were collected by using increment borer (Hegloff, 5.15 mm, 2 tread borer) at DBH (1.37 m). Two cores were collected from each tree and three replications were maintained for each location. The core samples were labeled and transported to the laboratory. Samples weredried in laboratory conditions. Collected samples were examined in laboratory for wood growth rings. Environmental parameters data viz., rainfall, temperature and relative humidity was collected from Karnataka State Natural Disaster Monitoring Centre (KSNMC), Yelahanka, Bengaluru. The data was correlated with wood growth ring width. Both the swampy and non-swampy species showed no relationship with the mean annual rainfall and means annual temperature. Thus further studies are needed in this area to understand the response to these species to environmental parameters.