Browsing Academic Sessions of University of Ruhuna by Author "Walpola, B.C."

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Influence of selected heavy metals on Nitrogen mineralization and nitrification of agricultural soils

Wimalasena, P.K.S.E.; Walpola, B.C.; Piyadarshani, S.H.R. (University of Ruhuna, Matara, Sri Lanka, 2011-02-22)

As heavy metals can persist in the soil for tens of thousands of years, the long-term effect of these elements on soil productivity is a matter of intensively discussed. Soil microbial functions such as respiration, ...
Isolation and Evaluation of Extracellular Protease Producing Bacteria

Walpola, B.C.; HoYoon, Min (University of Ruhuna, Matara, Sri Lanka, 2015-03-04)

In the present study, bacteria strains capable of producing protease were isolated and protease activity and stability were assessed under different pH and temperature conditions. Four bacterial isolates (B1-B4) were ...
Performance of Phosphate Solubilizing Bacteria by Their Effects on Lead (Pb) Toxicity

Hettiarachchi, R.H.A.N.; Walpola, B.C. (University of Ruhuna, Matara, Sri Lanka, 2018-03-07)

Lead (Pb) is regarded as a potent occupational toxin and its toxicological manifestations are well known. The non-biodegradable nature of Pb compounds is the prime reason for its prolonged persistence in the environment. ...

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