| 断根及萘乙酸处理对荔枝子苗生长的影响 |
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| 引用本文： | 刘德兵,魏军亚,郑天聪,李绍鹏.断根及萘乙酸处理对荔枝子苗生长的影响[J].华南热带农业大学学报,2006,12(3):8-11. |
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| 作者姓名： | 刘德兵 魏军亚 郑天聪 李绍鹏 |
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| 作者单位： | 华南热带农业大学园艺学院 海南儋州571737中国热带农业科学院热带生物技术研究所海口571101(刘德兵)，中国热带农业科学院热带生物技术研究所 海口571101(魏军亚)，华南热带农业大学园艺学院 海南儋州571737(郑天聪，李绍鹏) |
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| 基金项目： | 海南省教育厅基金项目,项目编号:Hjsk200327 |
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| 摘 要： | 对荔枝种子自然萌发生长状态下胚根生长发育状况,及荔枝子苗胚根分别切去1/3、2/3和全切后用400mg/L、800mg/L、1200mg/L萘乙酸处理后进行观察。结果表明,荔枝种子在发芽期间,胚根长度、须根数、上胚轴粗度与长度呈直线形增长,几种处理都对根系生长发育有明显促进作用,以胚根切除2/3并用800mg/L萘乙酸处理对根系生长的促进效果最佳。
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| 关 键 词： | 荔枝 子苗 胚根 萘乙酸 根数 鲜重 |
Effects of Broken Root and NAA Treatment on Growth of Litchi Germinating-Stage-Seedling |
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| Liu Debing,Wei Junya,Zheng Tiancong,Li Shaopeng.Effects of Broken Root and NAA Treatment on Growth of Litchi Germinating-Stage-Seedling[J].Journal of South China University of Tropical Agriculture,2006,12(3):8-11. |
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| Authors: | Liu Debing Wei Junya Zheng Tiancong Li Shaopeng |
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| Abstract: | The present study made an observation of the embryonic root growth status of litchi seedlings at the nature bourgeon growing condition and the embryonic roots of seedlings of which one third, two thirds and the whole were cut off and then treated with 400 mg/L, 800 mg/L, 1200 mg/L NAA. The result showed that during the period of bourgeon growing status of litchi, the embryonic root length, fibrous root counts, epicotyl width and length increase consistently. All treatments can significantly improve the roots growth. The best treatment is dripping with 800 mg/L NAA after two thirds of the embryonic roots are removed. |
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| Keywords: | Litchi germinating-stage-seedling embryonic root NAA number of roots fresh weight |
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