Journal of Bioscience and Agriculture Research |
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RESEARCH ARTICLE:
Planting technique of Teli-garjan (Dipterocarpus turbinatus Gaertn.) and Dhaki-jam (Syzygium firmum Thw.) in degraded hills of Chittagong, Bangladesh
M. Rafiqul Haider*, N. G. Bhowmick, N. Begum, M. Zashimuddin and M. Azizul Hoque
Silviculture Research Station, Bangladesh Forest Research Institute, Chittagong 4000, Phone*: +880 31 681581
Received: 05.02.17, Revised: 24.05.17, Available online: 14 June 2017.
J. Bios. Agric. Res. | Volume 14, Issue 01, pp. 1165-1173
Crossref: https://doi.org/10.18801/jbar.140117.143
Planting technique of Teli-garjan (Dipterocarpus turbinatus Gaertn.) and Dhaki-jam (Syzygium firmum Thw.) in degraded hills of Chittagong, Bangladesh
M. Rafiqul Haider*, N. G. Bhowmick, N. Begum, M. Zashimuddin and M. Azizul Hoque
Silviculture Research Station, Bangladesh Forest Research Institute, Chittagong 4000, Phone*: +880 31 681581
Received: 05.02.17, Revised: 24.05.17, Available online: 14 June 2017.
J. Bios. Agric. Res. | Volume 14, Issue 01, pp. 1165-1173
Crossref: https://doi.org/10.18801/jbar.140117.143
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Title: Planting technique of Teli-garjan (Dipterocarpus turbinatus Gaertn.) and Dhaki-jam (Syzygium firmum Thw.) in degraded hills of Chittagong, Bangladesh
Abstract: Suitable plantation technique is important for establishing plantation of different species from better germination, growth performance, economic and environmental point of view. Two plantation techniques, polybag seedlings and thali (direct seeding on ring shaped cleared soil), were studied from 2005 to 2014 in order to find out the superior one for establishing plantations of Dipterocarpus turbinatus and Syzygium firmum. Results revealed that polybag seedlings of Dipterocarpus turbinatus and Syzygium firmum had little bit higher germination percentage, germination value and germination energy than thali. None of these values of polybag seedlings and thali are significantly different except germination value and germination energy of Dipterocarpus turbinatus. Cumulative germination percentage of both species was higher at the initial stage for polybag seedlings than thali. Growth performance up to 9.5 years of Dipterocarpus turbinatus showed that for polybag seedlings the average height, average diameter at breast height (DBH), mean annual increment (MAI) of height and MAI of DBH are comparatively higher, with no significant difference than thali. On the other hand, these growth parameters of Syzygium firmum are higher for polybag seedlings at 5% significant level than thali. The survival percentage of Dipterocarpus turbinatus was higher (78.67 ± 9.33%) in plantations raised from thali (direct seeding) than polybag raised seedlings (69.33 ± 9.61%). The financial analysis was very positive for thali since expenditure incureed for establishing plantations by thali was much lower (6.70 BDTk./individual) than polybag seedlings (15.60 BDTk./individual). Considering the germination potentiality, growth performances, financial invovement and environmental point of view, the study suggested that the thali technique or direct seeding may be suitable for teli-garjan (Dipterocarpus turbinatus) and dhaki-jam (Syzygium firmum) plantation.
Key Words: Planting technique, Dipterocarpus turbinatus, Syzygium firmum, degraded hills, thali germination, germination value, energy and growth
Abstract: Suitable plantation technique is important for establishing plantation of different species from better germination, growth performance, economic and environmental point of view. Two plantation techniques, polybag seedlings and thali (direct seeding on ring shaped cleared soil), were studied from 2005 to 2014 in order to find out the superior one for establishing plantations of Dipterocarpus turbinatus and Syzygium firmum. Results revealed that polybag seedlings of Dipterocarpus turbinatus and Syzygium firmum had little bit higher germination percentage, germination value and germination energy than thali. None of these values of polybag seedlings and thali are significantly different except germination value and germination energy of Dipterocarpus turbinatus. Cumulative germination percentage of both species was higher at the initial stage for polybag seedlings than thali. Growth performance up to 9.5 years of Dipterocarpus turbinatus showed that for polybag seedlings the average height, average diameter at breast height (DBH), mean annual increment (MAI) of height and MAI of DBH are comparatively higher, with no significant difference than thali. On the other hand, these growth parameters of Syzygium firmum are higher for polybag seedlings at 5% significant level than thali. The survival percentage of Dipterocarpus turbinatus was higher (78.67 ± 9.33%) in plantations raised from thali (direct seeding) than polybag raised seedlings (69.33 ± 9.61%). The financial analysis was very positive for thali since expenditure incureed for establishing plantations by thali was much lower (6.70 BDTk./individual) than polybag seedlings (15.60 BDTk./individual). Considering the germination potentiality, growth performances, financial invovement and environmental point of view, the study suggested that the thali technique or direct seeding may be suitable for teli-garjan (Dipterocarpus turbinatus) and dhaki-jam (Syzygium firmum) plantation.
Key Words: Planting technique, Dipterocarpus turbinatus, Syzygium firmum, degraded hills, thali germination, germination value, energy and growth
HOW TO CITE THIS ARTICLE?
APA (American Psychological Association)
Tamimi, S. M. (2017). Effect of seed priming on growth and physiological traits of five Jordanian wheat (Triticum aestivum L.) landraces under salt stress. Journal of Bioscience and Agriculture Research, 11(01), 906-922.
MLA (Modern Language Association)
Tamimi, S. M. “Effect of seed priming on growth and physiological traits of five Jordanian wheat (Triticum aestivum L.) landraces under salt stress”. Journal of Bioscience and Agriculture Research, 11.01(2017), 906-922.
Chicago and orTurabian
Tamimi, S. M. “Effect of seed priming on growth and physiological traits of five Jordanian wheat (Triticum aestivum L.) landraces under salt stress”. Journal of Bioscience and Agriculture Research, 11. no. 01(2017), 906-922.
APA (American Psychological Association)
Tamimi, S. M. (2017). Effect of seed priming on growth and physiological traits of five Jordanian wheat (Triticum aestivum L.) landraces under salt stress. Journal of Bioscience and Agriculture Research, 11(01), 906-922.
MLA (Modern Language Association)
Tamimi, S. M. “Effect of seed priming on growth and physiological traits of five Jordanian wheat (Triticum aestivum L.) landraces under salt stress”. Journal of Bioscience and Agriculture Research, 11.01(2017), 906-922.
Chicago and orTurabian
Tamimi, S. M. “Effect of seed priming on growth and physiological traits of five Jordanian wheat (Triticum aestivum L.) landraces under salt stress”. Journal of Bioscience and Agriculture Research, 11. no. 01(2017), 906-922.
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