期刊论文

中文

湖南农业大学学报(自然科学版)

1007-1032

2005

31

1

42-46

10.3321/j.issn:1007-1032.2005.01.011

04C286:湖南省教育厅科学研究项目

本校为第一机构

为研究瓜叶菊花粉的生活力,测定了5个花色(玫红有白色内眼、紫色、玫红、水红色有白色内眼和白色有玫红花边)瓜叶菊花粉的染色率和发芽率,并研究了不同浓度的硼酸、蔗糖对瓜叶菊花粉萌发的影响.结果表明:1)瓜叶菊花粉粒为外表有很多刺毛的圆球.氯化三苯基四氮唑染色法(TTC染色法)和碘-碘化钾染色法(I-KI染色法)对新鲜瓜叶菊花粉的染色作用都不理想,染色6～8 h后的染色率仅为8.33%22.2%.低温(3～4℃)贮藏68 d后染色率变化不大.2)5个花色瓜叶菊的新鲜花粉的生活力有差异.3)蔗糖和硼酸的浓度影响瓜叶菊花粉的萌发.质量浓度分别为50,2.0 mg/L的蔗糖和硼酸对玫红色有白色内眼瓜叶菊的花粉萌发有很好的...

To investigate the pollen viability of Senecio hybridus,the rates of dyeing and the rates of germination of 5 Senecio hybridus with different color flowers(roseate flowers with a little white inner part,purple flowers,roseate flowers,light red flowers with a little white inner part,white flowers with roseate rim)were determined.The results show that:1) The pollens of Senecio hybridus were hard to be dyed in short time through either TTC dyeing or iodine-kalium iodide dyeing because there were many seta on the surface of pollen of Senecio hybrid...