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环境因子对苦豆子种子萌发和幼苗生长的影响

Influence of Environmental Factors on the Seed Germination and Seedling Growth of Sophora alopecuroides

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【作者】 王进韩多红陈叶金自学

【Author】 WANG Jin1,HAN Duo-hong2,CHEN Ye1,JIN Zi-Xue1 (1.Department of Agricultural Resources and Environmental Science,Hexi College,Zhangye,Gansu Province 734000,China;2.Department of Biology,Hexi College,Zhangye,Gansu Province 734000,China)

【机构】 河西学院农业资源与环境科学系河西学院生物系河西学院农业资源与环境科学系 甘肃张掖734000甘肃张掖734000

【摘要】 研究光照、温度、水分和土壤盐分等因子对苦豆子(Sophora alopecuroides L.)种子萌发的影响。结果表明:在持续光照、持续黑暗和16 h光照/8 h黑暗下种子萌发最适宜的温度为25℃;在16~8 h光暗交替下,25℃/16℃昼夜变温发芽率最高;种子萌发对光照不敏感;种子萌发最适土壤含水量为8%~13%;种子发芽期对NaCl的耐受浓度为1.2%。

【Abstract】 The effects of illumination,temperature,soil water and salt contents on the seed germination and seeding growth of Sophora alopecuroides L.was studied.The results show that the optimal tem-perature for seed germination was 25℃ under sustained illumination,sustained dark,or 16 h illumination/8 h dark.;the highest germination rate was occurred for the treatments of 25℃(daytime)/16℃(night) under 16 h illumination/8 h dark.The seed germination and seeding growth were not sensitive to the illumination.The optimal soil water content was 8~13% and the highest NaCl tolerance concentration was 1.2%for seed germination.

【基金】 国家自然科学重点支持项目(40235053)
  • 【文献出处】 草地学报 ,Acta Agrestia Sinica , 编辑部邮箱 ,2007年03期
  • 【分类号】S541.9;S567.239
  • 【被引频次】29
  • 【下载频次】581
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