4.Journals Published in Sri Lanka
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Item Development of tissue culture techniques for rubber (Hevea brasiliensis Muell Arg.)(Rubber Research Institute of Sri Lanka. Agalawatta, 2009) Nayanakantha, N.M.C.; Seneviratne, P.; Wijesekera, G.A.S.Item A century of rubber research - developments in rubber planting materials(Rubber Research Institute of Sri Lanka. Agalawatta, 2009) Seneviratne, P.; Wijesekera, G.A.S.Item Acclimatization of micropropagated plants of Hevea(Rubber Research Institute. Agalawatta, 1993) Seneviratne, P.; Wijesekera, G.A.S.; De Soysa, G.M.In vitro produced Hevea shoots were successfully acclimatized to outdoor conditions by controlling the ambient conditions, mainly the humidity. Shooots, longer than 5 cm and with some leaves attached performed better. Shoots without roots produced shoots soon after their transfer to soil and the root development and the acclimation succes was better than in the rooted shoots. Use of a concentrated auxin solution, to soak the bases of the shoots or to incoroperate into soil improved root induction. The growth of the aerial part and the root system of the micropropagated plants were comparable to those of embryo cultured plants, up to one year of growth, but the field performance is yet to be monitored.Item Effect of GA3 on the growth of axillary buds of Hevea brasiliensis in vitro(Rubber Research Institute. Agalawatta, 1997) Seneviratna, P.; Wijesekera, G.A.S.Slow growth of axillary buds is one of the key reasons for the slow progress in micropropagation of clonal Hevea.Axillary buds induced in the presence of cytokinins were elongated satisfactorily in the presence of GA3 at 2-4 mg/1.This effect was not observed when the medium contained thidiazuran.The effect of filter sterilized and autoclaved GA3 on the elongation of in vivo grown seedlings showed no difference.However,in this study GA3 was incorporated in to media prior to autoclaving.