Journal of Forest and Environmental Science

Institute of Forest Science, kangwon National University (강원대학교 산림과학연구소)
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Effect of Pre-sowing Treatments on Seed Germination and Seedling Growth of Canarium resiniferum, A Rare Native Tree of Bangladesh

  • Hasnat, G.N. Tanjina (Department of Land Administration, Patuakhali Science and Technology University) ;
  • Hossain, Mohammed Kamal (Institute of Forestry and Environmental Sciences, University of Chittagong) ;
  • Alam, Mohammed Shafiul (Institute of Forestry and Environmental Sciences, University of Chittagong) ;
  • Hossain, Md. Akhter (Institute of Forestry and Environmental Sciences, University of Chittagong)
  • Received : 2016.12.27
  • Accepted : 2017.03.09
  • Published : 2017.08.31
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Abstract

Dhup (Canarium resiniferum) is an economically and aesthetically important rare native tree species of Bangladesh. In natural condition 78.5-98.7% seeds do not germinate due to inhibition by hard seed coat, seed predation and unfavorable environmental conditions. A study was conducted in the Seed Research Laboratory and nursery of Institute of Forestry and Environmental Sciences, Chittagong University, Bangladesh in 2013 to find out appropriate pre-sowing treatments for maximizing germination and initial seedling growth. Eleven pre-sowing treatments were provided in both the seeds sown in polybags and seeds sown in propagator house. Results revealed that, germination started at first (after 20 days of seed sown) in seeds immersed in water at room temperature for 24 hours and germination completed within 38 days. Significantly higher (p<0.05) germination percentage (33%), germination energy (16.7%), plant percent (33%) and germination value (0.4) was found with seeds immersed in water at room temperature for 24 hours. Seedling height measured at three, four and five months after the seed germination in case of seeds treated by immersion in water for 24 hours was also greater than others. Therefore, pre-sowing treatment by immersion in water at room temperature for 24 hours was more effective in germination and production of quality vigor seedlings of Dhup.

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References

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