光照和不同药剂浸种对龙葵种子发芽率的影响  

Effects of illumination and seed-soaking reagent on seed germination of Solanum nigrum

作　　者：杨传杰[1,2] 魏树和[1] 周启星[1,3] 胡亚虎[1,2] 牛荣成[1,2] 

机构地区：[1]中国科学院沈阳应用生态研究所陆地生态过程重点实验室,沈阳110016 [2]中国科学院研究生院,北京100039 [3]南开大学环境科学与工程学院,天津300071

出　　处：《应用生态学报》2009年第5期1248-1252,共5页Chinese Journal of Applied Ecology

基　　金：国家高技术研究发展计划项目(2006AA06Z386);辽宁省自然科学基金项目(20082017);2008年教育部留学回国人员科研启动基金项目资助.

摘　　要：为探索超富集植物龙葵种子的快速发芽方法,以滤纸为发芽基质,采用恒温培养箱及温室培养的方法,对龙葵种子进行不同浸种处理,探讨光照及不同浸种液对龙葵种子发芽的影响.结果表明：光照条件是龙葵种子发芽的重要条件之一,光照条件下的发芽率约为无光照条件下发芽率的5倍（P〈0.05）;不同浸种液均能显著提高龙葵种子的发芽率,其中以双氧水的处理效果最好,发芽时间最短（P〈0.05）;浸种后不经清洗处理的龙葵种子发芽率约为浸种后再经清洗处理发芽率的2~3倍（P〈0.05）.To explore a rapid seed germination method for hyperaccumulator Solanum nigrum, a germination experiment with different illumination and seed-soaking treatments was conducted in constant temperature box and greenhouse, with filter as burgeon base. Under illumination, the germination rate was about 5 times high of that without illumination （ P 〈 0. 05 ）, indicating that illumination was one of the prerequisites for the seed germination of S. nigrum. All test seed-soaking reagents could significantly improve the germination rate of S. nigrum （P 〈 0.05 ）, with the best effect of H2O2. The seeds treated with H2O2 had the shortest germination time. The germination rate of seeds soaked but without cleaning was 2-3 times as high as that of seeds soaked and cleaned with water.

关 键 词：龙葵 发芽 光照 浸种液 

分 类 号：Q945[生物学—植物学]