17种报春苣苔属植物的组培苗移栽季节研究

Transplanting Season of 17 Species of Primulina

探讨不同季节对报春苣苔属植物组培苗移栽成活的影响,为其今后组培苗工厂化、规模化生产提供技术支持。以17种报春苣台属植物的组培生根苗为材料,研究季节对移栽成活的影响,分析不同物种间在同一季节的移栽成活差异以及同一物种在4个不同季节的移栽成活差异。大部分种类在春季移栽具有较高的成活率;成活率最高与最低的种类为三苞报春苣苔和粗茎报春苣苔,成活率分别为100.0%、51.3%;适宜春季移栽的种类是:贵港报春苣苔、硬叶报春苣苔、永福报春苣苔、紫花报春苣苔、三苞报春苣苔、阳朔小花苣苔、褐纹报春苣苔、柳江报春苣苔、尖萼报春苣苔、大根报春苣苔。17个种类在夏季移栽具有较低的成活率;成活率最高与最低的种类为大根报春苣苔和漓江报春苣苔,成活率分别为68.7%、15.3%。在17个种类中,超过一半的种类在秋季、冬季移栽具有较高的成活率。秋季移栽成活率最高为桂海报春苣苔、那坡报春苣苔,均为100.0%,成活率最低为褐纹报春苣苔,为20.0%;适宜秋季移栽的种类是:桂海报春苣苔、粗茎报春苣苔、那坡报春苣苔。冬季移栽以冬花报春苣苔的成活率最高,为100.0%,永福报春苣苔的成活率最低,为32.7%;适宜冬季移栽的种类是:桂中报春苣苔、紫萼报春苣苔、冬花报春苣苔、漓江报春苣苔。17个种类的移栽季节以春季的最好,夏季最差,秋季和冬季介于春季和夏季之间。不同季节不同种类移栽成活率不同,不同种类其适宜移栽的季节不同,应根据季节移栽合适的种类以保证其获得较高的成活率。

To provide technical support for the industrialized and large-scale production of tissue culture seedlings in the future,the effects of different seasons in southern Guangxi on the survival of transplanting of tissue culture seedlings of Primulina were discussed.In this paper,the effects of seasons on the survival of transplanting were studied using the group cultured seedlings of 17 species of Primulina.The survival differences of different species in the same season and the survival differences of the same species in four different seasons were analyzed.The results showed that most of species had higher survival rate when transplanted in spring,and the highest and lowest was P.tribracteata and P.crassirhizoma,respectively,with the survival rate of 100.0%and 51.3%.The suitable species for transplanting in spring were P.guigangensis,P.sclerophylla,P.yungfuensis,P.purpurea,P.tribracteata,P.glandulosa,P.glandaceistriata,P.liujiangensis,P.pungentisepala,P.macrorhiza.17 species had lower survival rate in summer.The species with the highest and lowest survival rate was P.macrorhiza(68.7%)and P.lijiangensis(15.3%).Among the 17 species,more than half of them had higher survival rate when transplanted in autumn and winter.The highest survival rate of transplanting in autumn was for P.guihaiensis and P.napoensis,and the lowest survival rate was for P.glandaceistriata.Autumn was the best transplanting season for P.guihaiensis,P.crassirhizoma,P.Napoensis.In winter,the survival rate of P.hiemalis was the highest,and that of P.yungfuensis was the lowest.Winter was the best transplanting season for P.guizhongensis,P.atropurpurea,P.hiemalis,P.lijiangensis.The transplanting season of 17 species was the best in spring and the worst in summer.Different species have different suitable transplanting seasons,so it is necessary to transplant the appropriate species according to the seasons to ensure a higher survival rate.