Journals Proceedings

International Journal of Environmental Engineering

Salinity Stress on Growth, Nutrients and Carbon Distribution in Seedlings Parts of Heritiera fomes

Author(s) : MD. NAZMUL HASAN, MAHMOOD HOSSAIN, MOHAMMAD RAQIBUL HASAN SIDDIQUE, SANJOY SAHA

Abstract

Present study was conducted to evaluate the effect of salinity on survival and growth of Heretiera fomes Buch.-Ham seedling. It was also examine the distributional pattern of nitrogen, phosphorus, potassium, sodium, and carbon in seedlings parts in relation to salinity. This experiment was carried out in hydroponic media for six months. All the seedlings (100%) found to survive at non saline (0 ppt) to moderate (10 ppt) saline conditions and lowest (40%) survival was observed at 35 ppt salinity. Significant (p<0.05) negative correlations were observed among salinity and different indicators of growth (collar diameter, height and oven-dried biomass increment). Significant (p<0.05) difference in nitrogen, phosphorus, potassium, sodium, and carbon concentration was observed for different parts of seedlings at different salinity levels. Comparatively (p<0.05) highest concentration of nitrogen (16 to 21 mg/g), phosphorus (2.9 to 3.7 mg/g), potassium (11 to 26 mg/g) and carbon (44.60 to 46.40%) were found in leaves. Conversely, significantly (p<0.05) highest concentration (8 to 48 mg/g) of sodium was observed in roots followed by stem. Potassium and carbon concentration in different parts of seedlings, and nitrogen in leaves and roots showed significant (p<0.05) negative correlation with salinity. Similarly, sodium

No fo Author(s) : 4
Page(s) : 71 - 77
Electronic ISSN : 2374 - 1724
Volume 1 : Issue 4
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