Abstract
Abstract Axillary buds of Japanese persimmon (Diospyros kaki Thun. cv. ‘Hiratanenashi’) were decontaminated, their budscales removed aseptically and placed in modified Murashige and Skoog (MS) medium containing 4.5 μM zeatin. Over 60% of the buds initiated shoots in 6 weeks. A multiplication rate of over 10-fold could be achieved in 6–8 weeks by two transfers (shoot proliferation and shoot elongation) in the same medium. Attempts to initiate shoots from meristem tips were unsuccessful. Using shoots that are > 25 mm long, c. 85% rooting was accomplished over a 6-week period in diluted (nitrogen content, 1/4 strength; other nutrients, 1/2 strength) MS medium containing 2% activated charcoal and 4.9 μM indole-3-butyric acid (IBA) with a liquid overlay of the undiluted medium containing 4.5 μM trans-zeatin (t-Z). Techniques are also described for the regeneration of whole plants from leaf segments (from in vitro propagated plants) using a combination of t-Z (10 μM and anyone of three auxins tested—indole-3-ac...
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