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Cover Page (Vol 12, Issue 3)

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GROWTH PERFORMANCE OF SOME MAINLAND TREE SPECIES IN MIXED PLANTATIONS RAISED IN THE EASTERN COASTAL BELT OF BANGLADESH
Sk. Ahiul Islam, Md. Abdul Quddus Miah, Md. Golam Rasul and Md. Mahabub Alam
Forestry
Abstract

Experiments were conducted in the coastal raised lands to assess the growth performance of four mainland tree species in mixed systems planted in the year of 2012 and 2013 at Bogachater of Sitakundu upazilla under Chittagong district (eastern coastal belt). Data on survival, height and diameter at breast height (dbh) were recorded from 4 years and 3 years old trial plantations. In 4 years old plantation, the result showed that the highest survival was recorded for Casuarina equisetifolia (99%) followed by Pongamia pinnata (97%), Pithecellobium dulce (95%) and Acacia nilotica (93%). The significantly greater height was also recorded for C. equisetifolia (12.21m) and lowest was found in P. pinnata (4.28m). The significantly greater dbh was recorded for C. equisetifolia (9.14cm) followed by A. nilotica (7.08cm), P. dulce (5.32cm) and P. pinnata (4.76cm). In 3 years old plantation, the highest survival was recorded for C. equisetifolia (100%) followed by A. nilotica (96%) P. pinnata (82%), and P. dulce (76%). The significantly greater height was also recorded for C. equisetifolia (6.38m) the lowest was for P. dulce (3.96m). The significantly greater dbh was found in C. equisetifolia (7.21cm) and lowest was in P. dulce (3.44cm). Although C. equisetifolia were found most promising but all these 4 species showed good growth performance in the mixed planting systems and may be suitable for planting in the raised lands of the eastern coastal belt of Bangladesh.