斯泰纳营养液培养尖尾芋最适条件初探  

Researches on Optimal Culture Condition of Alocasia ucullata(Lour.) Schott with Steiners Nutrient Solution

作　　者：黑淑梅[1] 张文超[1] 王琦[1] 冯晓东[1] 常海飞[1] 

机构地区：[1]延安大学生命科学学院/陕西省红枣重点实验室/陕西省区域生物资源保育与利用工程技术研究中心,陕西延安716000

出　　处：《湖北农业科学》2013年第21期5236-5237,5240,共3页Hubei Agricultural Sciences

基　　金：延安市科学技术研究发展计划项目(2010kn-18);延安大学科研计划项目(YD2010-16);陕西省农业攻关项目(2012K01-02);陕西省延安市科技局计划项目(2011kn-12)

摘　　要：为了提高水培尖尾芋[Alocasia cucullata(Lour.)Schott]的成活率,采用了1剂量、1/2剂量、1/4剂量3个浓度的斯泰纳营养液培养尖尾芋。通过测定营养液EC值、鲜重、根长、叶数以及叶片光合速率等,筛选较为理想的培养周期和营养液浓度。结果表明,尖尾芋在1/4剂量斯泰纳营养液中培养生长理想,光合速率呈先增后降的趋势;培养周期15 d左右为宜,尖尾芋的形态指标和生理指标最佳。In order to improve the survival rate of hydroponically cultured Alocasia cucullata（Lour.）Schott, and to explore op- timal culture condition of nutrient solution, the plant materials were cultured with three different concentrations of Steiners nutrient solution（1 dose, 1 / 2 dose and 1 / 4 dose）. The change of EC values of nutrient solution were monitored. Fresh weight, root length, leaf numbers and leaf photosynthetic rate were measured. The results showed that the optimal concentra- tion of nutrient solution was 1 / 4 dose of Steiners nutrient solution. During the cultured period, the photosynthetic rate in- creased firstly and then decreased. The appropriate culture period was about 15 days.

关 键 词：尖尾芋[Alocasia cucullata(Lour )Schott] 斯泰纳营养液 EC值 光合速率 

分 类 号：Q949.9[生物学—植物学] Q945.1