圣诞花的化学调控及其混合营养基质的研究  

Study on Chemical Regulation and Mixed Nutrition Medium Culture of Poinsettia

作　　者：魏国汶[1] 宋小明[1] 

机构地区：[1]江西省农业科学院蔬菜花卉研究所

出　　处：《江西农业学报》1995年第2期120-124,共5页Acta Agriculturae Jiangxi

摘　　要：本研究针对我国种植圣诞花的薄弱技术环节进行探索，结果表明：（１）嫩枝扦插圣诞花用Ｈｏｒｍｏｄｉｎ刺激切口，能显著提高其生根率；（２）从多种生长调节剂中筛选出ＰＰ＿（３３３）为圣诞花理想的矮壮剂，用７５ｐｐｍ的ｐｐ＿（３３３）２００ｍｌ灌根处理多年生圣诞花与对照比较植株矮化率达４１．７２％，迅速恢复生长的时间为药后６５ｄ左右，叶绿素含量提高１０．７８％，花期提前１０ｄ，观赏价值大为提高。处理当年扦插的植株，安全有效浓度为３７．５～２５ｐｐｍ，药后３５ｄ矮化率为８７．５０％～８２．７６％；（３）混合营养基质培植圣诞花能显著提高其移栽成活率，改善长势长相，减少成株死亡率和病虫杂草危害。This study was an attempt to improve the weakness on peinsettcas culture technigues inChina, The study result showed:(1)Hormodin treatment on young cutting from poinsettia wouldobviously increase their root generation rate;(2)PP333 had been selected from testing growh regulatorsas an ideal chemical to make poinsettia dwarf.early September,the perennial poinsettia was treatedwith 200ml 75ppm PP333 on roots,and the plant shortening rate reached 41.72% compared with theCK. Time for recovering to a normal growth rate was 85 days after the chemical treatinent, whilechlorophyll content increased by 10.78%,and flowering was push forward 10 days with higherornamental value For young cuttings,the optimum concetration was 37.5～25ppm.plant-shortening rate became 87.5～82.76%,35 days after treatment ,it is much cheaper than the rest ofAserican preduct;(3)Mixed Nutrition medium culture apparently euhanced the survival rate oftransplanted young cuttings,improved their features,reduced death rate and freed them from disease,weed and insect harm.

关 键 词：圣诞花 控制 混合营养基质 

分 类 号：S685.230.4[农业科学—观赏园艺]