Browsing by Author "Jayawickrema, P.K."
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Item Effect of sprays of plant growth regulator hydrogen cyanamide (Dormex) on yield of tea(Tea Research Institute. Talawakele, 1997) Kathiravetpillai, A.; Abeysekera, U.P.; Jayasekera, A.P.D.A.; Jayasinghe, J.A.S.K.V.; Jayawickrema, P.K.