| 华北落叶松和日本落叶松种子超干保存活力和生理特性研究 |
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| 引用本文： | 李庆梅,刘艳,陈怀梁,马风云,侯龙鱼.华北落叶松和日本落叶松种子超干保存活力和生理特性研究[J].北京林业大学学报,2011,33(2):25-30. |
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| 作者姓名： | 李庆梅 刘艳 陈怀梁 马风云 侯龙鱼 |
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| 作者单位： | 1 中国林业科学研究院林业研究所，国家林业局林木培育重点实验室2 北京林业大学省部共建森林培育与保护教育部重点实验室3 山东农业大学林学院 4 中国科学院植物研究所 |
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| 基金项目： | "973"国家重点基础研究发展计划项目，中国林业科学研究院林业研究所重点项目 |
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| 摘 要： | 采用室温硅胶干燥法,研究了超干处理和加速老化(50℃,30 d)对华北落叶松和日本落叶松种子活力和生理特性的影响.对2种落叶松不同含水量种子老化前后的发芽率、发芽势、发芽指数、活力指数、相对电导率、脱氢酶活性和异柠檬酸裂解酶进行测定.结果表明:含水量50～28 g/kg的华北落叶松和含水量48～28 g/kg的日本落叶...
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| 关 键 词： | 华北落叶松 日本落叶松 种子 超干处理 种子活力 |
| 收稿时间： | 1900-01-01 |
Vigor and physiological properties of ultra-drying seeds of Larix principis-rupprechtii Mayr.and L.kaempferi(Lamb.) Carr. |
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| LI Qing-mei,LIU Yan,CHEN Huai-liang,MA Feng-yun,HOU Long-yu.Vigor and physiological properties of ultra-drying seeds of Larix principis-rupprechtii Mayr.and L.kaempferi(Lamb.) Carr.[J].Journal of Beijing Forestry University,2011,33(2):25-30. |
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| Authors: | LI Qing-mei LIU Yan CHEN Huai-liang MA Feng-yun HOU Long-yu |
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| Institution: | 1 Research Institute of Forestry, Chinese Academy of Forestry, Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, Beijing, 100091, P.R. China; 2 Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, 100083, P. R. China; 3 College of Forestry, Shandong Agricultural University, Tai’an, 271018, P.R. China; 4 Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, P.R.China. |
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| Abstract: | Using ultra-drying over silica gel(at room temperature) and accelerated aging(50 ℃, 30 d) methods, we studied the storage behavior of Larix principis-rupprechtii Mayr. and L. kaempferi(Lamb.) Carr. seeds. Seed germination percentage(GP), germination energy(GE), germination index(GI), vigor index(VI), relative conductivity(RC), dehydrogenase activity(DA) and isocitrate lyase activity(ICL) after ultra-drying(pre-aging) and accelerated aging were investigated. The results showed that higher GE, GP, GI, VI, DA and ICL were found in the seeds with moisture content(MC) of 50-28 g/kg for L. principis-rupprechtii and 48-28 g/kg for L. kaempferi before and after aging, indicating the feasibility of ultra-drying storage for seeds of these two species. Furthermore, all indices of seeds with MC of 28 g/kg were best for both species, indicating their better anti-aging ability than seeds with other MCs. The results indicate that 28 g/kg of MC was optimum for the ultra-dying storage of L. principis-rupprechtii and L. kaempfer seeds. |
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| Keywords: | Larix principis-rupprechtii Larix kaempferi seed ultra-drying seed vigor |
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