| 彩叶草株型矮化的化学控制及其细胞学特征初探 |
| |
| 引用本文： | 郭兆武,金建军,俞 健.彩叶草株型矮化的化学控制及其细胞学特征初探[J].中国农学通报,2007,23(11):261-261. |
| |
| 作者姓名： | 郭兆武 金建军 俞 健 |
| |
| 作者单位： | 长沙理工大学生物与食品工程学院,湖南长沙,410077 |
| |
| 基金项目： | 湖南省科技厅科技计划研究项目 |
| |
| 摘 要： | 为了探索彩叶草株型矮化的化学控制，以其扦插幼苗为材料，通过对其株高及其细胞学特性研究，发现叶面喷施15%多效唑可湿性粉剂800倍液和5%烯效唑可湿性粉剂7000倍液对彩叶草株型具有显著的矮化作用；叶面喷施50%CCC水剂400倍液，矮化效果不显著。细胞学观察表明，喷施多效唑和烯效唑，其茎秆表皮细胞长径显著变短，短径无显著变化；茎秆表皮毛显著变短，每个表皮毛的细胞数显著减少；茎秆筛管直径显著变小。多效唑和烯效唑对其细胞伸长和分裂有抑制作用，限制了筛管营养物质的运输，抑制了植株其他部位的生长，这些是使彩叶草株型矮化的主要原因。喷施CCC对彩叶草无显著控矮化作用，但有相应的细胞学变化，其原因有待进一步研究。结果表明，烯效唑对彩叶草的催衰老作用较小，细胞学性状也较稳定，植株较光滑，具有良好的观赏价值，是一种较好的彩叶草控矮化剂。
|
| 关 键 词： | 致病疫霉 致病疫霉 交配型 |
| 修稿时间： | 2007-07-18 |
The Dwarf Chemical Control and Cytological Characters of Coleus blumwei |
| |
| Guo Zhaowu,Jin Jianjun,Yu Jian.The Dwarf Chemical Control and Cytological Characters of Coleus blumwei[J].Chinese Agricultural Science Bulletin,2007,23(11):261-261. |
| |
| Authors: | Guo Zhaowu Jin Jianjun Yu Jian |
| |
| Institution: | Biological and Food Engineering College, Changsha University of Science and Technology, Hunan 410076 |
| |
| Abstract: | In order to explore the chemical regulation of the plant type dwarfing of Coleus blumei,its cutting plantlets were used as the experimental materials in this research.Through studying its height and cytological characters of each treatment,we found that spraying 800-fold liquor of 15% Paclobutrazol wettable powder and 7,000-fold liquor of 5% Unlconazole(S3307D)on its leaves had significant dwarfing effect on it;400-fold liquor of 50% chlormequat chloride(CCC)had not any.Cytological observation showed that after spraying Paclobutrazol and Unlconazole,the length of the epidermal cells of the stem became significantly shorter but not its width,its pilus epidermidis significantly shorter,the number of cells for each pilus epidermidis significantly less and the diameter of its sieve tube became significantly smaller.Paclobutrazol and Unlconazole inhibited the cell elongation and cell division,plant nutrient transportion and the growth of other parts of the plant,which were the main reasons of the Coleus blumei dwarfing.Spraying CCC on the leaves of Coleus blumei had no significant dwarfing effect,but had cytologic changes.The causes need further studying.The result indicated that Unlconazole had less aging effect on Coleus blumei,cytology traits were more stable,the surface of the plant looked smooth,which showed a higher ornamental value.Therefore,Unlconazole was a better dwarfing regulator of Coleus blumei. |
| |
| Keywords: | Coleus blumei Chemical control Plant type dwarfing Cytology |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《中国农学通报》浏览原始摘要信息 |
| 点击此处可从《中国农学通报》下载免费的PDF全文 |
|
