滨旋花和兴安天门冬种子萌发特性的研究  

Studies on the Germination Features of Calystegia soldanella and Asparagus dauricus Seeds

作　　者：张萍[1] 刘林德[1] 赵建萍[1] 孔冬瑞[1] 吴玉苍[1] 

机构地区：[1]鲁东大学生命科学学院,山东烟台264025

出　　处：《种子》2006年第11期14-16,共3页Seed

基　　金：山东省教育厅课题(J01H03);鲁东大学校基金(20053304)资助

摘　　要：从温度、pH值、盐分及混播方面对滨旋花和兴安天门冬种子萌发特性进行了研究。结果表明，滨旋花种子萌发的适宜温度为15～2．3℃，最适温度为20℃；而兴安天门冬种子萌发的适宜温度为23-28℃，其中25℃时发芽率最高；二者的种子适合在稍偏碱性环境下萌发；盐分对种子的萌发有抑制作用。滨旋花种子硬实率高，属于环境强迫休眠，人工处理种皮，可以解除休眠。The effect of temperature, pH, salt and mix semination on the seed germination features of Calystegia soldanella and Asparagus dauricus was investigated. The results showed that temperatures between 15 - 23 ℃, with an optimal temperature of 20 ℃ were suitable for the germination of Calystegia soldanella seeds, and the suitable temperatures for the germination of Asparagus dauricusand seeds were between 23 - 28℃, with an optimal temperature of 25 ℃. An alkaline environment was favourable for seed germination in both species and salt played an inhibitory role in seed germination. The hard seed percentage was high in Calystegia soldanella, representing a forced dormancy due to adverse environment. The dormancy can be broken by artificial measures.

关 键 词：滨旋花 兴安天门冬 种子 萌发率 萌发特性 

分 类 号：S792.99[农业科学—林木遗传育种]