| 赤霉素对两种高山杜鹃种子发芽的影响 |
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| 引用本文： | 高贵龙,龙秀琴,胡小京,陆晓丽,陈训.赤霉素对两种高山杜鹃种子发芽的影响[J].种子,2010,29(5). |
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| 作者姓名： | 高贵龙 龙秀琴 胡小京 陆晓丽 陈训 |
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| 作者单位： | 1. 贵州科学院,贵阳,550001
2. 贵州大学农学院,贵阳,550025 |
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| 基金项目： | 农业科技成果转化资金项目，贵州省重大专项项目 |
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| 摘 要： | 研究了不同浓度赤霉素在不同处理时间条件下对九龙山杜鹃(R.jiulongshanense)和桃叶杜鹃(R.annae)种子发芽的影响。结果表明:在0～300mg/LGA浓度范围内,浸种15min的发芽势和发芽率均较对照有不同程度的提高,200mg/L浓度时增加最多,300mg/L较200mg/L时有所降低。在相同浓度范围内,浸种30min的发芽势、发芽率反而较对照明显降低。因此两种杜鹃种子对GA处理促进或者抑制发芽呈现明显的时间敏感性。本试验以200mg/L浸种15min的效果最好,桃叶杜鹃的发芽势、发芽率分别为40.00%、64.33%,与对照差异达到了显著水平。
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| 关 键 词： | 九龙山杜鹃 桃叶杜鹃 赤霉素 种子 发芽 |
Effect of GA on Two Species Alpine Rhododendron Seeds Germination |
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| GAO Gui-long,LONG Xiu-qin,HU Xiao-jing,LU Xiao-li,CHEN Xun.Effect of GA on Two Species Alpine Rhododendron Seeds Germination[J].Seed,2010,29(5). |
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| Authors: | GAO Gui-long LONG Xiu-qin HU Xiao-jing LU Xiao-li CHEN Xun |
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| Institution: | GAO Gui-long1,LONG Xiu-qin1,HU Xiao-jing2,LU Xiao-li2,CHEN Xun1(1.Guizhou Academy of Sciences,Guiyang 550001,China,2.Agricultural College,Guizhou University,Guiyang 550025,China) |
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| Abstract: | Effect of gibberellic (GA) in different concentration and different treating time on germination of Rhododendron jiulongshanense and R.annae seed were studied.The results indicated that germination energy and germination rate could be increased by soaking seed in 0-300mg/L GA for 15minutes,and was up to the highest at 200mg/L,but lower than that of 200mg/L when GA concentration was 300mg/L.While in the same range of concentration,germination energy and germination rate decreased when seeds were soaked for 3... |
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| Keywords: | Rhododendron jiulongshanense Xiang Chen et Jiayong Huang Rhododendron annae Franch GA seed germination |
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