| 不同光照和温度下白花鬼针草和金盏银盘种子萌发研究 |
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| 引用本文： | 韦春强,番玉梅,唐赛春,林春华,刘明超.不同光照和温度下白花鬼针草和金盏银盘种子萌发研究[J].杂草科学,2013(4):1-4. |
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| 作者姓名： | 韦春强 番玉梅 唐赛春 林春华 刘明超 |
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| 作者单位： | [1]广西壮族自治区中国科学院广西植物研究所,广西桂林541006 [2]广西师范大学,广西桂林541004 |
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| 基金项目： | 国家自然科学基金（编号：31260154）;广西壮族自治区自然科学基金（编号：2011GXNSFE018005）. |
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| 摘 要： | 通过在人工培养箱内模拟环境条件，探讨了不同光照和温度对白花鬼针草和金盏银盘种子萌发的影响，结果表明：光照和温度不是白花鬼针草种子萌发的必要条件，白花鬼针草种子萌发的温度适应范围比金盏银盘宽，在15＇12／10oc、20℃／15℃、25℃／20℃、30℃／25oC、35℃／30℃、40℃／35℃下均能萌发，在15％／10气、20％／15℃、25％／20℃、30~E／25℃时萌发率均达94％左右，金盏银盘种子在40％／35℃时不能萌发；温度影响白花鬼针草和金盏银盘种子萌发高峰的出现时间及峰值大小，而光照不影响。
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| 关 键 词： | 白花鬼针草 金盏银盘 种子萌发 光照 温度 |
Seed Germination of Bidens alba L. and B. biternata L. under Different Light and Temperature Regimes |
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| WEI Chun-qiang,PAN Yu-mei,TANG Sai-chun,LIN Chun-hua,＇,LIU Ming-chao.Seed Germination of Bidens alba L. and B. biternata L. under Different Light and Temperature Regimes[J].Weed Science,2013(4):1-4. |
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| Authors: | WEI Chun-qiang PAN Yu-mei TANG Sai-chun LIN Chun-hua ＇ LIU Ming-chao |
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| Institution: | 1＇2 ( 1. Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin541006, China; 2. Guangxi Normal University,Guilin 541004, China) |
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| Abstract: | Bidens alba L. is an invasive alien weed,and B. biternata L. is its congener. The effects of different light and temperature conditions on seed germination of B. alba and B. biternata were studied by simulating environmental condi- tions in climatic chambers. B. alba adaptive temperature range for seed germination was wider than that of B. biternata. B. alba was able to germinate at temperat/ares from 15 ℃/10 ℃ to 40 ℃/35 ℃ ,with its germination percentage being about 94% under temperatures from 15 ℃/10 ℃ to 30 ℃/25 ℃. B. biternata seed did not germinate at 40 ℃/35 ℃. Temperature could affect the time of germination peak and height of the seedlings of both species but light had no differen tial effect. |
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| Keywords: | B/dens alba L Bidens biternata L seed germination light temperature |
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