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Effects of light availability on survival and growth of seedling and sapling of tropical dry deciduous forest tree species in Ballavpur wild life sanctuary, West Bengal, India Nag Aniruddha, Gupta Hema (Joshi)* Department of Botany, Visva-Bharati, Santiniketan-731 235, India *E-mail: hemagupta.gupta123@gmail.com
Online Published on 18 November, 2022. Abstract Seasonal variation of available light under tree canopy could impact growth and survival of tree seedlings and saplings in tropical dry forest. Different species responds differentially to such natural traits. The seedling and sapling growth and survival of six dry forest tree species under two different canopy conditions were studied inside the Ballavpur Wild Life Sanctuary. Light intensity significantly differed under open and closed canopy stands. Seedling survival varied for different species and ranged from 60–100%. No seedling and sapling of Butea monosperma and Terminalia arjuna were available under closed and open canopy respectively. The seedling survival was independent of the canopy condition but significantly varied for different species. Relative growth rate in height (RGRH) of tree seedlings differed significantly among different species.The seasonal rainfall in the dry deciduous forest promoted the relative growth of tree seedlings. The present study emphasized that species specific response plays very important role in governing the seedling survival and growth of tropical dry deciduous tree species. Top Keywords Dry deciduous forest, Canopy condition, Light availability, Relative growth, Seedling and sapling survival. Top | | |
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