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Position: Home > Articles > Influences of Different Factors on the Vitality and Seedling of Agriophyllum squarrosum Journal of Inner Mongolia Forestry Science and Technology 2019,45 (3) 28-31

不同因素对沙蓬种子生活力和出苗的影响

作  者:
任昱;魏春光;何志;徐志明;郭小宇
单  位:
鄂尔多斯生态环境职业学院;鄂尔多斯市恩格贝生态示范区管理委员会;鄂尔多斯市林业工作站;鄂尔多斯市康巴什区青春山街道办事处
关键词:
沙蓬;种子生活力;沙埋深度;适应对策
摘  要:
以固沙先锋植物沙蓬为研究对象,通过种子活力测定、不同埋深及不同埋深+不同浓度GA_3处理对沙蓬种子出苗进行控制试验,探索沙蓬种子对风沙活动的适应性和适应策略。结果表明:1.0%TTC溶液染色14~18 h能够快速有效地测定沙蓬种子的生活力;适度的埋深促进沙蓬种子萌芽,1.5 cm埋深处理的出苗率和发芽势均最高;GA_3可以有效地打破沙蓬种子休眠,1.5 cm埋深+1 500 mg/L GA_3处理出苗率最高,埋深过浅或过深对沙蓬种子出苗有抑制作用。
译  名:
Influences of Different Factors on the Vitality and Seedling of Agriophyllum squarrosum
作  者:
REN Yu;WEI Chun-guang;HE Zhi;XU Zhi-ming;GUO Xiao-yu;Ordos Vocational College of Eco-Environment;Ordos Forestry Working Station;Qingchunshan Subdistrict Office of Kambashi District,Ordos;Management Committee of Engebei Ecological Demonstration Zone,Ordos;
关键词:
Agriophyllum squarrosum;;seed vitality;;sand burial depth;;adaptation strategy
摘  要:
Agriphylllum squarrosum is a pioneer plant of sand fixation. In order to understand the adaptability of the seed germination to the windy and sandy environment, the seed emergence of Agriphylllum squarrosum has been controlled by measuring seed viability, different buried depth and different buried depth + different concentration GA_3 treatment. The results show that, staining for 14-18 hours with 1.0% TTC solution can quickly and effectively determine the viability of the seed. Moderate burial depth can promote seed germination, and the treatment of 1.5 cm burial depth has the highest seedling rate and germination potential. GA_3 can break the seed dormancy effectively. The seedling rate is the highest with the treatment of 1.5 cm burial depth + 1 500 mg/L GA_3. The burial depth higher or lower than 1.5 cm can inhibit the emergence of Agriphylllum squarrosum.

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