2Moe R,Fjeld T,Mortensen L M.Stem elongation and keeping quality in poinsettia(Euphorbia pulcherrima Willd.)as affected by temperature and supplementary lighting[J].Scientia Horticuhurae,1992,50(1-2):127-136.
3Faust J E,Heins R D.Axillary Bud Development of Poinsettia Eckespoint Lilo and Eckespoint Red Sails (Euphurbiu pulcherrima Willd.) Is Inhibited by High Temperatures[J].J.Amer.Soc.Hort.Sci,1996,121(5):920-926.
4Mortensen L M,Stromme E.Effects of light quality on some greenhouse crops[J].Scientia Horticulturae,1987,33(1-2):27-36.
5Graaf-van der Zande,Blacquière T.Ljght quality during longday treatment for poinsettia and china asterl[J].Acta Horticulturae,1992,327,87-93.
6Gislerad H.Physical conditions of propagation media and their influence on the rooting of cuttings[J].Plant and Soit,1983,75(1):1-14.