| 温度对樟子松和沙地云杉种子萌发特征的影响 |
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| 引用本文： | 李银科,刘世增,康才周,满多清,李得禄.温度对樟子松和沙地云杉种子萌发特征的影响[J].水土保持通报,2011(4):73-77. |
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| 作者姓名： | 李银科 刘世增 康才周 满多清 李得禄 |
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| 作者单位： | 甘肃省荒漠化防治重点实验室省部共建国家重点实验室培育基地;甘肃省治沙研究所; |
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| 基金项目： | 甘肃省技术研究与开发专项计划项目“干旱沙区沙地云杉引种繁育及造林技术研究与示范”(0709TCYH035); 公益性科研院所专项(CAFYBB200700X); 甘肃省中青年科技研究基金项目(2008GS01408) |
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| 摘 要： | 通过对不同温度条件下樟子松和沙地云杉种子的发芽特征研究,分析了温度对发芽率、发芽势、发芽指数、平均发芽天数、胚根长、胚芽长、胚根/胚芽比和活力指数的影响。结果表明,温度对发芽率、发芽势、发芽指数、平均发芽天数、胚根长、胚芽长、胚根/胚芽比和活力指数的影响均达到极显著水平。10~25℃温度范围内樟子松和沙地云杉均有较高的发芽率,20~25℃为樟子松和沙地云杉发芽的最适温度;温度超过30℃时发芽种子有腐烂现象,所以温度高于30℃不适合樟子松和沙地云杉种子发芽。在适宜温度下,沙地云杉发芽率大于樟子松,且发芽整齐,但樟子松生长快于沙地云杉,耐高温也优于沙地云杉。
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| 关 键 词： | 樟子松 沙地云杉 温度 种子 发芽 |
| 收稿时间： | 2010/11/5 0:00:00 |
| 修稿时间： | 2010/12/5 0:00:00 |
Effects of Temperature on Germination Characteristics of Pinus Sylvesiris var.
Mongolica and Picea Mongolica Seed |
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| LI Yin-ke,LIU Shi-zeng,KANG Cai-zhou,MAN Duo-qing and LI De-lu.Effects of Temperature on Germination Characteristics of Pinus Sylvesiris var.
Mongolica and Picea Mongolica Seed[J].Bulletin of Soil and Water Conservation,2011(4):73-77. |
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| Authors: | LI Yin-ke LIU Shi-zeng KANG Cai-zhou MAN Duo-qing and LI De-lu |
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| Institution: | LI Yin-ke1,2,LIU Shi-zeng1,KANG Cai-zhou1,MAN Duo-qing1,LI De-lu1,2(1.State Key Laboratory of Desertification Aeolian Sand Disaster Combating,Gansu 730070,China,2.Gansu Desert Control Research Institute,Lanzhou,China) |
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| Abstract: | Effects of temperature on the germination of Pinus sylvesiris var.mongolica and Picea mongolica were studied by observing their germination characteristics such as germination rate,energy,index,mean gemination time,length of radicle and hypocotyl,radicle/hypocotyl ratio and vigor index.The results showed that different germination temperatures significantly influenced germination characteristics mentioned above.The germination rate of Pinus sylvesiris var.mongolica and Picea mongolica were all fairly high i... |
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| Keywords: | Pinus sylvesiris var mongolica Picea mongolica temperature seed germination |
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