| 不同倍性西瓜花粉形态观察 |
| |
| 引用本文： | 刘文革,王鸣,阎志红.不同倍性西瓜花粉形态观察[J].园艺学报,2003,30(3):328-330. |
| |
| 作者姓名： | 刘文革 王鸣 阎志红 |
| |
| 作者单位： | ( 西北农林科技大学园艺学院，杨凌 712100； 中国农业科学院郑州果树研究所，郑州 450009) |
| |
| 基金项目： | 国家 8 6 3计划项目 (2 0 0 1AA2 41173)，河南省自然科学基金项目 (0 2 110 30 90 0 ) |
| |
| 摘 要： | 采用扫描电子显微镜对不同倍性西瓜12个品种的花粉形态进行了系统观察，结果表明：二倍体花粉多为近长球形，极轴/赤道轴(P/E)值为1.283，具3孔沟，花粉整齐一致；四倍体花粉为圆球形,P/E值为1.111，有3孔沟，4孔沟，多孔沟，其中有异形花粉、粘连花粉和空瘪花粉等；三倍体花粉全部为空瘪花粉。从孢粉学角度阐述了四倍体花粉萌发率低，三倍体花粉不育的原因。
|
| 关 键 词： | 西瓜 花粉 形态 二倍体 三倍体 四倍体 |
| 文章编号： | 0513-353X(2003)03-0328-03 |
| 收稿时间： | 2002-9-6 |
| 修稿时间： | 2002年9月6日 |
Observation and Comparison on Pollen Morphology of Different Ploidy Watermelon |
| |
| Liu Wen'ge ,Wang Ming ,and Yan Zhihong.Observation and Comparison on Pollen Morphology of Different Ploidy Watermelon[J].Acta Horticulturae Sinica,2003,30(3):328-330. |
| |
| Authors: | Liu Wen'ge Wang Ming and Yan Zhihong |
| |
| Institution: | (Horticulture College, Northwest Sci-Tech University of Agriculture and Forestry, Yangling 712100，China; Zhengzhou Fruit Research Institute，Chinese Academy Agricultural Sciences,Zhengzhou 450009， China) |
| |
| Abstract: | Morphological characters of the pollen grain of diploid, triploid and tetraploid watermelons( Citrullus lanatus)were observed with the aid of scanning electron microscope.Population pollen of the diploid watermelon were in good order;their pollen's shape with 3 apertures was subprolate and average P/E ratio was 1.283;The pollen grains of the tetraploid was spheroidal with 3,4 and more apertures,average pollen's P/E ratios was 1.111; Heteromophic, adhesive and shrivelled pollen were observed on tetraploid watermelon.All of the pollen grains of the triploid were shrivelled.The reasons of lower germination of autotetraploid pollen and abortive pollen of triploid were discussed from palynological observations. |
| |
| Keywords: | Watermelon Pollen Morphology Diploid Triploid Tetraploid |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《园艺学报》浏览原始摘要信息 |
| 点击此处可从《园艺学报》下载免费的PDF全文 |
