| GA3 对宿根福禄考组培苗在北京冬季移栽成活率以及光合速率的影响 |
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| 引用本文： | 李红伟,张金政,孙国峰,张启翔.GA3 对宿根福禄考组培苗在北京冬季移栽成活率以及光合速率的影响[J].园艺学报,2006,33(4):879-882. |
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| 作者姓名： | 李红伟 张金政 孙国峰 张启翔 |
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| 作者单位： | (中国科学院植物研究所, 北京100093; 北京林业大学园林学院, 北京100083) |
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| 基金项目： | 农业科技成果转化资金项目(03EFN216600357) |
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| 摘 要： | 本文对北京地区宿根福禄考组培苗冬季移栽成活率低的问题进行了研究。不同浓度的GA3 处理可显著提高组培苗移栽成活率并促进生长。20μmol·mol- 1的GA3 处理后组培苗移栽成活率由68.18%提高到100%; 与对照相比较, 喷施GA3 的小苗在冬季两个月内株高增至约300% , 功能叶单叶面积增至约200%。各梯度GA3 对宿根福禄考功能叶片光合色素含量以及单位面积的叶片净光合速率影响不显著, 但显著提高了株高和冠幅, 因此移栽苗总的同化产物增加。
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| 关 键 词： | 宿根福禄考 组培苗 移栽成活率 GA3 净光合速率 |
| 文章编号： | 0513-353X（2006）04-0879-04 |
| 收稿时间： | 2005-09-22 |
| 修稿时间： | 2005-09-222006-02-23 |
Effects of GA3 on the Survival Rate and the Net Photosynthetic Rates of Micropropagation Plants of Phlox paniculata Transplanted during Winter in Beijing Area |
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| Li Hongwei,Zhang Jinzheng,Sun Guofeng,Zhang Qixiang.Effects of GA3 on the Survival Rate and the Net Photosynthetic Rates of Micropropagation Plants of Phlox paniculata Transplanted during Winter in Beijing Area[J].Acta Horticulturae Sinica,2006,33(4):879-882. |
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| Authors: | Li Hongwei Zhang Jinzheng Sun Guofeng Zhang Qixiang |
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| Institution: | (Institute of Botany, the Chinese Academy of Sciences, Beijing 100093, China; College of Landscape Architecture, Beijing Forestry University, Beijing 100083, China) |
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| Abstract: | Surviving rate of transplanting of micropropagation plants of Phlox paniculata is improved from the initiae 68.18% to 100% by spraying 20 μmol·mol- 1 exogenetic GA3 during winter time, while the net photosynthetic rates and chloroplast pigments contents are not influenced by exogenetic GA3 at different concentiation gradients. The height of plants and length of functional leaves are increased significantly by spraying different concentiation exogenetic GA3, and it results in total biomass increment. |
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| Keywords: | Phlox paniculata Micropropagation plant Survival rate of transplanting GA_3 Net photosynthetic rate |
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