Abstract: To i nvest i gat e t he ef f ect of cr uci al i nf l uenci ng f act or s on Dr aceana ar bor ea f l ower i ng i ncl udi ng l ow t emper at ur e,phot oper i od,hor mones and nut r i t i on l evel s.The r esul t s showed t hatt emper at ur e was t he mai n f act or ofD. ar bor ea f l ower i ng. D. ar bor ea f l ower i ng was 100% successf ul l y i nduced by 5益 f or 5 d i n l ow t emper at ur e寅hi gh t emper at ur e寅l ow t emper at ur e t r eat mentpr ocess or der l y.However ,i ft her e was no oronl y one l ow t emper at ur e t r eat ment , D.ar bor ea di dn爷tf l owereven i n 5益 f or30 d.The mostsensi t i ve t emper at ur e D.ar bor ea f l ower i ng was5益 f or5-7 d.Hi gh phosphor us and pot assi um f er t i l i zer was ef f ect i ve i n i mpr ovi ng D.ar bor ea f l ower i ng. I mpr ovi ng ni t r ogen, and r educi ng phosphor us and pot assi um f er t i l i zercoul d pr eventseedl i ng f l ower i ng ear l y.Hi gh l i ght ( above 8 000 l x)i mpr oved f l ower i ng and l ow l i ght ( bel ow 3 000 l x)pr event ed f l ower i ng i n advance.Phot oper i od and f ourhor mones渊6-BA袁NAA袁GA 3 袁Et h. 冤 had no ef f ect son D.ar bor ea f l ower i ng.