钐和钇及钕对月季切花衰老的影响  

Effect of Samarium,Yttrium and Neodymium on senescence of cut Chinese rose flower

作　　者：陈蔚辉[1] 林燕旋 

机构地区：[1]韩山师范学院生物系,广东潮州521041 [2]汕头市正始中学,广东汕头515041

出　　处：《湖南农业大学学报（自然科学版）》2007年第4期431-434,共4页Journal of Hunan Agricultural University(Natural Sciences)

基　　金：广东潮州市科技计划项目(2002G05)

摘　　要：为探明稀土元素钐(Sm)、钇(Y)、钕(Nd)对月季切花保鲜的机理,研究了浓度为5×10-4 mol/L的Sm3+,Y 3+,Nd 3+溶液对月季切花衰老的影响.结果表明:Sm3+和Y 3+能改善月季切花体内的水分平衡,增加切花鲜重和维持花径大小,减少花瓣溶质外渗,维持细胞膜结构的稳定性,降低呼吸速率,使切花瓶插寿命延长2～3 d;Nd 3+对月季切花衰老没有明显作用.The effects of 5×10^-4 mol/L Sm^3＋, Y^3＋and Nd^3＋ on senescence of cut Chinese rose flower were investigated. The results showed that 5^10^-4 mol/L Sm^3＋ and Y^3＋ could improve the water balance of cut rose flower and fresh weight; maintain the size of flower diameter, decrease the solute exosmosis; maintain the stability of membrance in petals ; reduce the respiration rate, and prolong the vase life for 2-3 d compared to the contrast. However, the effects of 5^ 10^-4 mol/L Nd^3＋ on senescence of cut Chinese rose flower was not apparent.

关 键 词：钐 钇 钕 月季切花 衰老 

分 类 号：S609.3[农业科学—园艺学]