作　　者： ; ; (李辉钦）;

机构地区： 清远职业技术学院

出　　处： 《华南农业大学学报》 2007年第3期56-61,共6页

摘　　要： 用多菌灵+福美双和NAA+IBA对九重葛Bougainvillea spectabilis插穗浸泡处理后扦插,测定了插穗的形态生长指标、内源性激素IAA、ABA和可溶性糖含量的动态变化.结果表明:NAA+IBA和适宜的多菌灵+福美双均可提高插穗的生根,促进根的生长,成活率显著地高于对照(P<0.01);533 mg.L-1多菌灵+福美双和200 mg.L-1NAA+IBA处理都提高了插穗叶和插穗基端的IAA和可溶性糖含量,ABA的含量下降.用533 mg.L-1多菌灵+福美双和200 mg.L-1NAA+IBA分别浸泡插穗1.5 h,成活率达到95.6%,比单独用200 mg.L-1NAA+IBA处理的成活率提高了6.67%;NAA+IBA对插穗体内物质的运输不利,多菌灵+福美双可促进插穗的物质运输. Growth characteristics, content of IAA and ABA in endogenous hormornes and soluble sugar content were studied during rooting of the softwood of Bougainvillea spectabilis by using treatments of carbendazim ＋ thiram, NAA ＋ IBA and water control. The results showed that NAA ＋ IBA and carbendazim ＋ thiram could promote rooting,and the cuttings survival rate（ P 〈 0.01 ）. The softwood cuttings soaked respectively in 533mg·L^-1carbendazim ＋ thiram and 200 mg·L^-1 NAA ＋ IBA, had higer IAA and soluble sugars content,less ABA content in leaves and basal stems. The softwood cuttings soaked for 1.5 h in 533 mg·L^-1 carbendazim ＋ thiram and 200 mg·L^-1 NAA ＋ IBA respectively, had survival rate 95.6% ,and more than 6.67% compared to that of the treatment of 200 mg·L^-1 NAA ＋ IBA. NAA ＋ IBA was harmful for the matter transportation of softwood cuttings, but carbendazim ＋ thiram promoted the matter transporation of softwood cuttings.

关 键 词： 杀菌剂 生长调节剂 九重葛 插穗 生长指标 生化指标

领　　域： [生物学]