9Jesch - HH,Musche - P.More efficient in vitro propagation ofwoody ornamentals of the genus Prunus( German). Gartenbau - Magazin . 1991
10Katano -M,Irie - R.Shoot - tip culture of Japanese flowering cherry ( Prunus yedoensis MATSUM. ) and possible cryopreservation of shoot - tio in liquid nitrogen. Proceedings of Faculty of Agriculture Kyushu Tokai University . 1991