Micropropagation of Cupressus sempervirens L. and Chamaecyparis lawsoniana (A. MURR.) PAR.

Shoots from 18-month-old seedlings of Cupressus semper- virens and Chamaecyparis lawsoniana were established in vitro on modified MURASHIGE and SKOOG medium. Proliferation of axillary shoots occurred without addition of benzyladenine, although a significant increase in numbers of shoots resulted on addition of 0.001 mg.l-1 to 1.0 mg.l-1 benzyladenine. Following conditioning on a growth regulator-free medium for 28 days, 95% of C. sempervirens shoots rooted on 1 /2 strength