红蓝LED光照强度对非洲菊离体培养的影响

摘要

以光量比为4:1的LED红蓝光作为光源,研究了不同光照强度对非洲菊离体培养的影响.结果表明:非洲菊增殖培养的最适宜LED光照强度是48 μmol·m-2·s-1,在该光照强度条件下,非洲菊的增殖系数达6.28,增殖苗鲜重为1.31 g;非洲菊生根培养的最适LED光照强度是72 μmol·m-2·s-1,在该光照强度条件下,非洲菊生根数为4.00条/株,根长为2.02 cm,幼苗叶大、色绿、矮壮.%In vitro culture of Gerbera jamesonii as influenced by different light intensities was investigated under an LED light source whose red-blue light intensity ratio was 4:1.The result showed that the optimum light intensity of proliferation culture of G.jamesonii was 48 μmol·m-2·s-1,at which the multiplication factor was 6.28 and the fresh weight of the proliferation plantlet was 1.31 g;The optimum light intensity of rooting culture was 72 μmol·m-2·s-1,at which the number of roots was 4.00 per plantlet and the root length was 2.02 cm, with the plantlet being large in leaves,green in color,and short and sturdy.