Regeneration of Hexaploid Plants of Cherry Dwarf Rootstock ‘Gisela 6‘ from in vitro Leave Treated with Colchicine OPTIMIZATION OF INDUCING 2n POLLEN GRAIN OF Poupulus ussuriensis Kom BY COLCHICINES Induction of Autotetraploid Non-heading Chinese Cabbage with High-quality and Heat-tolerance by Colchicine Polyploid induction and identification of Oncidium Studies on the Induction of 2n Gamete in Chinese Cabbage and the Production of Tetraploid by Sexual Polyploidization Studies on the Induction of 2n Gamete in Chinese Cabbage and the Production of Tetraploid by Sexual Polyploidization Primary Study on Polyploid of Dendrobium Hybrid Induced by Colchicines TETRAPLOID INDUCTION OF Lilium davidii var.unicolor THROUGH COLCHICINE TREATMENT STUDY ON COLCHIPLOID OF P.Tricuspidata INDUCED BY COLCHICINES Induction of Tetraploidy of Non-heading Chinese Cabbage with Late-bolting and Identification of Chromosome Configuration Polyploid Induction on the Hybrid of Miscanthus lutarioriparia×Miscanthus sinensis Study on polyploid induction of Lilium lancifolium in vitro with colchicine treatment In Vitro Induction of Autotetraploid Broccoli with Colchicine Polyploid Induction of coloured Zantedeschia aethiopica Polyploid Induction of coloured Zantedeschia aethiopica Regeneration of Hexaploid Plants of Cherry Dwarf Rootstock ‘Gisela 6‘ from in vitro Leave Treated with Colchicine In Vitro Induction of Autotetraploid Broccoli with Colchicine Induction of Polyploids on Mulberry in Tissue Culture