顶坛花椒花粉活力及其对Zn的响应研究  

Study on the Pollen Viability of Zanthoxylum planispinum var.dingtanensis and its Response to Zinc

作　　者：贺红早[1] 陈训[2] 李苇洁 

机构地区：[1]贵州师范大学地理与生物科学学院,贵州贵阳550001 [2]贵州科学院,贵州贵阳55000 [3]贵州省喀斯特资源环境与发展研究中心,贵州贵阳550001

出　　处：《安徽农业科学》2007年第27期8432-8434,共3页Journal of Anhui Agricultural Sciences

基　　金：国家"十一"五科技支撑计划项目(2006BAC01A09-4-1)

摘　　要：用TTC法测定了顶坛花椒花粉的活力和寿命,用拟合二次方程（Quadratic）、分析建立曲线估计模块（Curve estimation）的方法分析了顶坛花椒花粉活力和寿命对微量元素Zn的响应。研究结果表明：在3-8年和生长在海拔600 m左右的顶坛花椒花粉具有较强活力,散粉后花粉的最长寿命为6 d。当ZnSO4浓度为0.08%时,各年龄级的顶坛花椒花粉活力达到最大值;ZnSO4浓度为0.06%时,Zn可以促使不同海拔的顶坛花椒花粉活力达到最大值;当ZnSO4浓度为0.09%时,顶坛花椒花粉寿命可以从散粉后6 d延长到7 d。因此,当ZnSO4浓度为0.06%-0.09%,顶坛花椒花粉活力和花粉寿命均能大幅度提高。In this paper,the pollen viability and life-span of Zanthoxylum planispinum var.dingtanensis were evaluated with TTC（2,3,5-triphenyl tetrazolium chloride） test,and the response of Zinc to pollen viability and life-span was analyzed with the method of quadratic and then estimated curve. The resuits showed that the pollen of Zanthoxylumplanispinum var.dingtanensis at age of 3 - 8 a and altitude of 600 m had obvious viability more than others, the pollen life-span after blooming were six days.When the density of ZnSO4 was 0.08% the pollen viability at each age can reach its maximun.Zinc can spur pollen viability of Zanthoxylum planispinum var. dingtanensis at different altitude when the density of ZnSO4 was 0.06% ,and the pollen life-span can be prolonged from six days to seven days when the density of ZnSO4 was 0.09% .As a result, when the density of ZnSO4 was between 0.06% and 0.09%, both pollen viability and life-span of Zanthoxylum planispinum var. dingtanensis can be boosted greatly.

关 键 词：顶坛花椒 花粉活力 花粉寿命 ZN 

分 类 号：Q944.42[生物学—植物学]