地不容种子萌发适宜条件探究  

Investigation into the Optimal Conditions for Germination of Stephania epigaea

作　　者：阮彦伟 陈明惠 龚燕雄 黎小清 郭金权[3] 魏丽萍 岩香甩 RUAN Yanwei;CHENG Minghui;GONG Yanxiong;LI Xiaoqing;GUO Jinquan;WEI Liping;YAN Xiangshuai(Yunnan Key Laboratory of Sustainable Utilization Research on Rubber Tree,Jinghong 666100,China;Yunnan Institute of Tropical Crops,Jinghong 666100,China;Xishuangbanna Shendu Agricultural development Co.,LTD,Jinghong 666100,China)

机构地区：[1]云南省天然橡胶可持续利用研究重点实验室,云南景洪666100 [2]云南省热带作物科学研究所,云南景洪666100 [3]西双版纳绅度农业开发有限公司,云南景洪666100

出　　处：《热带农业科技》2025年第2期71-78,共8页Tropical Agricultural Science & Technology

基　　金：西双版纳州科技创新发展专项资金(202402012);云南省热带作物科学研究所热带作物科技创新专项资金项目(RF2024-2-1);西双版纳橡胶林生态系统云南省野外科学观测研究站项目(202205AM070004);云南省现代农业橡胶产业技术体系建设专项资金项目(2024KJTX-12-3)。

摘　　要：以地不容干燥种子及鲜种子为材料,探究不同浸种处理(热水、过氧化氢、赤霉素及浓硫酸浸种)及不同温度滤纸萌发、沙床播种对种子发芽率的影响,比较不同方法破除地不容种子休眠的效果。结果表明:种皮束缚是造成地不容种子休眠的重要原因;热水浸泡对地不容种子的发芽率提升不明显,过氧化氢、赤霉素和浓硫酸浸泡处理后可有效破除地不容种子休眠;在不同温度及沙床培养条件下,地不容干燥种子、新鲜种子发芽率不相同,沙床培养的促萌发效果总体更好。Using dried and fresh seeds of Stephania epigaea as materials,this study explores the effects of different soaking treatments (hot water,hydrogen peroxide,gibberellin,and concentrated sulfuric acid soaking),as well as different temperatures for filter paper germination and sand bed sowing on seed germination rate,and compares the effects of different methods on breaking the dormancy of Stephania epigaea seeds.The results showed that seed coat binding is an important reason for the dormancy of Stephania epigaea seeds,soaking in hot water did not significantly improve the germination rate of dried and fresh seeds of Stephania epigaea.Soaking in hydrogen peroxide,gibberellin,and concentrated sulfuric acid effectively broke the dormancy of mountain turtle seeds.Under different temperatures and sand bed cultivation conditions,the germination rate of dried and fresh seeds of Stephania epigaea also varied,and the germination promoting effect of sand bed cultivation was generally better.

关 键 词：地不容 种子萌发 破除休眠 发芽率 

分 类 号：S722[农业科学—林木遗传育种] Q945.35[农业科学—林学]