1. Doubled haploid sunflower (Helianthus annuus) plant production by androgenesis: fact or artifact? Part 2. In vitro isolated microspore culture

   • Marc Coumans
   • Danni Zhong

   Original Research Paper Pages: 203 - 309

2. Explanation for the lack of division of protoplasts from stems of rubber-tree (Hevea brasiliensis)

   • E. Cazaux
   • J. d'Auzac

   Original Research Paper Pages: 211 - 219

3. Plant regeneration from protoplasts of Gentiana by embedding protoplasts in gellan gum

   • Masaru Nakano
   • Keizo Hosokawa
   • Saburo Yamamura

   Original Research Paper Pages: 221 - 227

4. Effect of growth regulators concentrations on morphological development of meristem-tips in Dioscorea cayenensis-D. rotundata complex and D. praehensilis

   • Bernard Malaurie
   • Okito Pungu
   • Marie-France Trouslot

   Original Research Paper Pages: 229 - 235

5. Cryopreservation of in vitro-grown apical meristems of lily by vitrification

   • Toshikazu Matsumoto
   • Akira Sakai
   • Kazuto Yamada

   Original Research Paper Pages: 237 - 241

6. An assessment of cytological stability in protoplast cultures of tetraploid Petunia hybrida

   • Man-Ho Oh
   • Dong-Woog Choi
   • Sang-Gu Kim

   Original Research Paper Pages: 243 - 248

7. Establishment and growth characteristics of Glycyrrhiza glabra hairy root cultures

   • Leena Toivonen
   • Heikki Rosenqvist

   Original Research Paper Pages: 249 - 258

8. In vitro culture of Cucumis sativus L. XVIII. Plants from protoplasts through direct somatic embryogenesis

   • W. Burza
   • S. Malepszy

   Original Research Paper Pages: 259 - 266

9. Effects of auxins, cytokinins, carbohydrates and amino acids on somatic embryogenesis induction from shoot apices of pea

   • Jacques Loiseau
   • Claire Marche
   • Yvon Le Deunff

   Original Research Paper Pages: 267 - 275

10. Embryogenic protoplast cultures of orange jessamine (Murraya paniculata) and their regeneration into plants flowering in vitro

    • Hasan Basri Jumin
    • Nobumasa Nito

    Research Note Pages: 277 - 279

11. In vitro culture and plant regeneration of large flowered purslane

    • Badr-Din Rossi-Hassani
    • Jean-Pierre Zryd

    Research Note Pages: 281 - 283

12. Transfer of the ability to flower in winter wheat via callus tissue regenerated from immature inflorescences

    • Izabela Marcińska
    • Franciszek Dubert
    • Jolanta Biesaga-Kościelniak

    Research Note Pages: 285 - 288