Table of Contents
Journal of Ecosystems
Volume 2014 (2014), Article ID 270956, 9 pages
http://dx.doi.org/10.1155/2014/270956
Research Article

Variation in Seedling Growth of Tamarindus indica (L.): A Threatening Medicinal Fruit Tree Species in Bangladesh

1Forestry and Wood Technology Discipline, Khulna University, Khulna 9208, Bangladesh
2Faculty of Forest Science and Forest Ecology, Georg-August University, Goettingen, Germany
3Laboratory of Cell and Functional Biology, Faculty of Science, University of the Ryukyus, Okinawa, Japan

Received 7 May 2014; Revised 3 July 2014; Accepted 4 July 2014; Published 23 July 2014

Academic Editor: Ernesto I. Badano

Copyright © 2014 Md. Salim Azad et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Seedling growth is a precondition for conservation and sustainable use of genetic resources which depends upon understanding of breeding system, genetic inconsistency, and evolutionary forces in forest tree improvement. The aim of this study was to determine variation in seedling growth and age-age correlations of Tamarindus indica at population level in Bangladesh. The study revealed significant ( ) differences of seasonal variation in seedling growth. Height and collar diameter growth showed significant ( ) positive correlation with mean monthly rainfall. The study also revealed significant difference ( ) of seedling growth among T. indica population. PCA illustrated rainfall, height growth, and diameter growth as the main characters in this study which defined drought as an additive character for this species. Cluster analysis of similarity showed how seedlings from 22.67°N latitude (origin) separated from others. An increasing trend of age-age correlation was identified in both cases of shoot height and diameter growth. The study concluded that seed collection for either ex situ conservation or seedling production can be done from 22.67°N latitude as seedlings from that area performed better than others, and early clonal selection of T. indica can be done at the age of 9 months.