1. Effect of growth regulators on the flowering in Scots pine (Pinus sylvestris L.) grafts;Chałupka;Silvae Genet.,1978
2. Regulation of flowering in Scots pine (Pinus sylvestris L.) grafts by gibberellins;Chałupka;Silvae Genet.,1980
3. Influence of growth regulators and polythene covers on flowering of Scots pine and Norway spruce grafts;Chałupka;Silvae Genet.,1981
4. Time of GA47 application may affect the sex of Scots pine flowers initiated;Chałupka;Silvae Genet.,1984
5. Effect of gibberellin, clone and environment on cone initiation, shoot growth and branching in Pinus contorta;Longman;Ann. Bot.,1982