Samarappuli, L.2012-07-312012-07-311987Bulletin of the Rubber Research Institute of Sri Lanka24pp.1-5https://dl.nsf.gov.lk/handle/1/9224Stomatal conductance and transpiration and leaf water potential of rubber (Hevea brasiliensis), clone PB 86, subjected to water stress were measured with a steady-state porometer and a pressure bomb, respectively. In well watered plants young leaves showed a higher stomatal conductance than mature leaves. In water stressed plants young leaves always exhibited a lower stomatal conductance than mature leaves. Increase in soil dehydration reduced the leaf water potential, stomatal conductance and the rate of transpiration.AgricultureSeedlingsTranspirationSoil dehydrationPlant growthArticle