1. THE ROBINIA PSEUDOACACIA L. SEED GERMINATION AND PLANTLETS GROWTH IN SEPTIC OR ASEPTIC CONDITIONS UNDER LED LIGHT OF DIFFERENT WAVELENGHTS. Authors: CONSTANTIN CRĂCIUN, DORINA CACHIŢĂ-COSMA, LIVIU BURESCU.2. FORTY YEARS FROM THE BEGINNING OF THE RESEARCH IN THE FIELD OF PLANT TISSUE AND CELL CULTURE IN ROMANIA. Authors: CONSTANTIN CRĂCIUN, AUREL ARDELEAN, DORINA CACHIȚĂ-COSMA.3. PLANT STEM CELLS – THEORETICAL AND PRACTICAL STUDIES. Authors: CONSTANTIN CRĂCIUN, DORINA CACHIȚĂ-COSMA.4. 40 YEARS SINCE THE INTRODUCTION OF PLANT TISSUE AND CELL CULTURE TECHNIQUES IN ROMANIA. Authors: AUREL ARDELEAN, CONSTANTIN CRĂCIUN, DORINA CACHIŢĂ-COSMA.