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

MD., NAZMUL HASAN and MAHMOOD, HOSSAIN and MOHAMMAD RAQIBUL, HASAN SIDDIQUE, and SANJOY, SAHA (2014) Salinity Stress on Growth, Nutrients and Carbon Distribution in Seedlings Parts of Heritiera fomes. In: International Conference on Advances In Applied Science and Environmental Engineering - ASEE 2014, 02 - 03 August, 2014, Kuala Lumpur, Malaysia.

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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 (p0.05) 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. concentration in plant parts showed significant (p 0.05) negative correlation with potassium and carbon concentration in the respective plant parts. The findings of this study indicated that survival and growth of H. fomes seedling were strongly influenced by salinity. This influence was reflected through the nutrients and carbon distributional pattern in seedling parts; and antagonistic relationship among sodium concentration; and potassium and carbon concentration.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Growth, Heritiera fomes, Nutrients, Salinity, Seedling, Survival
Depositing User: Mr. John Steve
Date Deposited: 27 May 2019 07:59
Last Modified: 27 May 2019 07:59
URI: http://publications.theired.org/id/eprint/2755

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