1. Insecticidal activity of teak (tectona grandis l.f.) leaves extracts against diamondback moth (plutella xylostella l.) and mealybug (phenacoccus manihoti matile-ferrero)
Jarongsak Pumnuan, Ammorn Insung, N. Montri

2. In vitro chromosome doubling of tomato var. improved pope (lycopersicon esculentum mill) via colchicine
N.F.H. Abello, J.H. Ruiz, J.U. Rio and P.R.L. Pascual

3. Evaluation of six elite irrigated spring bread wheat (triticum aestivum l.) varieties tolerant to heat stress during late sowing
A. Hossain, F. Kizilgeci, M.S.H. Milon, J.A. Teixeira da Silva and D.S. Gaydon

4. Growers' fertilizer application behavior and their willingness to pay for the fertilizer a study in coconut triangle of sri lanka
C.S. Herath and R. Wijekoon

5. Sustainability assessment of paddy farming system in kaduwela wetland ecosystem in sri lanka
R.D.A.K. Ranasinghe, G.A.S. Ginigaddara and U.A.D.P. Gunawardena