High plating efficiency and plant regeneration frequency in low density protoplast cultures derived from an embryogenic Brassica napus cell suspension Daina H. SimmondsNancy E. LongWilfred A. Keller OriginalPaper Pages: 231 - 241
Callus production from willow (Salix viminalis L.) protoplasts Tiina VahalaTage Eriksson OriginalPaper Pages: 243 - 248
Adventitious shoot regeneration from leaf explants of tissue cultured and greenhouse-grown raspberry Johanne C. CousineauDanielle J. Donnelly OriginalPaper Pages: 249 - 255
Factors promoting sustained divisions of mesophyll protoplasts isolated from dihaploid clones of potato (Solanum tuberosum L.) and a cytological analysis of regenerated plants Sylvia WaaraAnita WallinTage Eriksson OriginalPaper Pages: 257 - 265
l-Phenylalanine ammonia-lyase in suspension culture cells of spruce (Picea abies) Burkhard MessnerMeinrad BollJürgen Berndt OriginalPaper Pages: 267 - 274
Improvement of the tissue culture response of seed-derived callus cultures of Poa pratensis L.: Effect of gelling agent and abscisic acid H. F. Van ArkM. A. C. M. ZaalP. Van der Valk OriginalPaper Pages: 275 - 280
A comparison of BA, zeatin and thidiazuron for adventitious bud formation from Picea glauca embryos and epicotyl explants D. D. EllisH. BarczynskaN. Nelson OriginalPaper Pages: 281 - 287
Development of four tobacco cytoplasmic male sterile sources using in vitro techniques Violeta Milanova NikovaN. A. ZagorskaR. S. Pundeva OriginalPaper Pages: 289 - 295
In vitro regeneration from excised leaves of Flaveria trinervia (Sprengel) C. Mohr M. S. SudarshanaC. Shanthamma OriginalPaper Pages: 297 - 302
Root organogenesis from single cells released from the root cap of Medicago sp. Martha C. HawesLaura Y. SmithMartha Stephenson OriginalPaper Pages: 303 - 308
The preparation in vitro of chrysanthemum for transplantation to soil Elaine F. SmithAndrew V. RobertsSusan Denness OriginalPaper Pages: 309 - 313
Influence of nitrogen form and NH4 +-N/:NO3 −-N ratios on adventitious shoot formation from pear (Pyrus communis) leaf explants in vitro Hassan Abu-QaoudR. M. SkirvinF. E. Below OriginalPaper Pages: 315 - 319
Studies of protoplast culture types and plant regeneration from callusderived protoplasts of Asparagus officinalis L. cv. Lucullus 234 Yinghui DanChristine T. Stephens OriginalPaper Pages: 321 - 331
Minimal growth in vitro conservation of coffee (Coffea spp.) Anna Bertrand-DesbrunaisMichel NoirotAndré Charrier OriginalPaper Pages: 333 - 339
Micropropagation of juvenile and adult Sorbus domestica L. Isabel ArrillagaToni MarzoJuan Segura OriginalPaper Pages: 341 - 348