(1) Department of Biology and Biochemistry, North East London Polytechnic, E15 4LZ London, England;(2) Department of Life Sciences, Trent Polytechnic, Clifton Lane, NG11 8NS Nottingham, England
Abstract:
Summary Adventitious shoots were formed on excised leaves, roots and callus of Rosa persica x xanthina and on excised leaves of R. laevigata and R. wichuraiana on culture media that included BAP and NAA as growth regulators. Shoots formed freely on freshly cultured callus of R. persica x xanthina but their production declined in successive cultures and ceased after twelve weeks. Transplantation to soil was improved by rooting plantlets in cellulose plugs in vitro and transferring plantlets to soil while still in the plugs.