不同处理对浮叶慈姑种子萌发的影响  

Impact of Different Treatments on the Germination of Sagittaria natans

作　　者：朱秋平 廖立冰 闫玉梅 胡骞 徐磊[1] 陈陆丹 刘送平[1] 钟爱文[1] ZHU Qiu-ping;LIAO Li-bing;YAN Yu-mei(Lushan Botanical Garden,Jiangxi Province and Chinese Academy of Sciences,Jiujiang,Jiangxi 332900)

机构地区：[1]江西省、中国科学院庐山植物园,江西九江332900

出　　处：《安徽农业科学》2025年第6期44-47,共4页Journal of Anhui Agricultural Sciences

基　　金：科技合作专项项目-省院及省校科技合作(重点项目)(2021-2BDH80012);庐山植物专项(2020ZWZX07,2023ZWZX09)。

摘　　要：为解决浮叶慈姑种子出苗率低的问题,对其种子进行了不同变温和不同化学方法处理。结果表明,不同变温处理下,种子萌发率均较低,不能有效解除种子休眠;5%~20%HCl溶液处理能快速打破种子休眠,显著提高种子萌发率,而KOH和KNO_(3)溶液处理效果不明显;10%HCl溶液处理6 h的种子萌发率、发芽指数最高,分别为76.67%、20.22,2%HCl溶液处理8 h发芽势最高,为34.00%。研究结果可为解决科研及生产中浮叶慈姑种子萌发率低、发芽周期长的问题提供理论依据。To address the issue of low seed emergence rates in S.natans,Jiangxi Province and various variable temperatures and chemical treatments for seed pre-treatment were explored.The result indicated that while various temperature treatments yielded low germination rates and failed to alleviate seed dormancy effectively,treatment with 5%-20%hydrochloric acid(HCl)solutions proved effective in breaking seed dormancy and enhancing germination rates.Conversely,pre-treatments with potassium hydroxide(KOH)and potassium nitrate(KNO_(3))solutions showed no significant improvement in germination rates.Therefore,we recommend the use of HCl solution over KOH and KNO_(3)solutions for treating S.natans seeds.Additionally,seeds treated with 10%HCl solutions for 6 hours exhibited the highest germination rates and germination indices,which were 76.67%and 20.22,respectively,while seeds treated with 2%HCl solutions for 8 hours showed the highest germination potentials(34.00%).These findings offer valuable insights for addressing the challenges of low germination rates and prolonged germination periods in both research and production settings.

关 键 词：浮叶慈姑 珍稀濒危植物 解除休眠 萌发率 

分 类 号：Q945[生物学—植物学]