萌发前处理和种子大小对瓜拉那(Paullinia cupana var.sorbilis)种子萌发的影响  

Effects of pretreatment and seed size on seed germination of guarana(Paullinia cupana var.sorbilis)

作　　者：成焱[1] 崔现亮[2] 周开元[1] 罗燕江[1] 

机构地区：[1]中国科学院西双版纳热带植物园,云南勐腊666303 [2]思茅师范高等专科学校生命科学系,云南普洱665000

出　　处：《生态科学》2010年第5期422-426,共5页Ecological Science

基　　金：中国科学院西部博士基金项目(1309010)资助

摘　　要：为了增加对瓜拉那（Paullinia cupana var.sorbilis）种子萌发特性的了解,寻求提高瓜拉那种子萌发的最佳条件,本研究用控制实验,研究了瓜拉那种子去/不去假种皮、不同种子大小和酸处理下的萌发行为.结果表明,去假种皮且酸处理的大种子发芽率最高,为100%;不去假种皮且无酸处理的小种子基本不萌发;去假种皮种子发芽率显著高于未去假种皮种子;种子大小对萌发率有显著影响,大种子比小种子趋于有更高的萌发率;酸处理能进一步提高去假种皮种子萌发率.A fractional factorial experiment was carried out to understand germinating ecology of guarana （Paullinia cupana var. sorbilis）, and to find out appropriate procedures for guarana seed germination. Three factors with two levels each were employed, namely seed aril （removed or non-removed）, seed size （big or small）, and acid （treated or non-treated）. The results showed that guarana seeds took two and a half months to germinate, and the germination lasted for three and a half months. The highest germination rate was found in the big seed, seed arils removed, and acid treated group, which was 100%. The lowest germination rate was observed in the small seed, seed arils non-removed, and non acid treated group, which was 0%. It can be concluded that removing seed aril significantly increases germination rate ofguarana; big seeds have higher germination rate; acid treatment significantly increases germination rate.

关 键 词：瓜拉那 萌发 假种皮 种子大小 酸处理 

分 类 号：Q178.532[生物学—水生生物学]