Co-Authors:
Reuveni, O., Institute of Horticulture, Agricultural Research Organization, The Volcani Center, Bet Dagan, 50-250, Israel
Shlesinger, D.R., Institute of Horticulture, Agricultural Research Organization, The Volcani Center, Bet Dagan, 50-250, Israel
Lavi, U., Institute of Horticulture, Agricultural Research Organization, The Volcani Center, Bet Dagan, 50-250, Israel
Abstract:
A procedure for in vitro propagation of dioecious papaya clones is described. A high rate of success in culture estbalishment was obtained when axillary buds were taken from lateral shoots of hedged rooted cuttings grown in a greenhouse. Seasonal endophytic contamination was suppressed by shaking propagules for 24 h in 300 mgl-1 rifampicin or by incorporating it at 50 mgl-1 into the medium. Murashige & Skoog (MS) basal medium supplemented with 0.5 mgl-1 6-benzyladenine and 0.1 mgl-1 naphthaleneacetic acid was used for establishment and proliferation. The addition of 160 mgl-1 adenine sulfate improved multiplication and shoot growth. An elongation stage on MS medium supplemented with 1.0 mgl-1 kinetin and 0.05 mgl-1 naphthaleneacetic acid was necessary before rooting. Rooting was obtained at a high rate on half-strength macroelements of MS medium supplemented with 1.0 mgl-1 indole-3-butyric acid. Commercial plots of papaya plants obtained through this procedure already exist. © 1990 Kluwer Academic Publishers.
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