| 枣树单花不同开放阶段花粉萌发率和内源激素的变化 |
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| 引用本文： | 王玖瑞,刘孟军,梁海永.枣树单花不同开放阶段花粉萌发率和内源激素的变化[J].园艺学报,2005,32(4):677-680. |
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| 作者姓名： | 王玖瑞 刘孟军 梁海永 |
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| 作者单位： | (1 河北农业大学林学院, 保定071001; 2 河北农业大学中国枣研究中心, 保定071001) |
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| 基金项目： | 国家自然科学基金资助项目（30471194）;国家科技攻关计划资助项目（2001BAS02809-04）;河北农业大学9816重大科技工程资助项目 |
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| 摘 要： | 以‘冬枣’和‘湖南鸡蛋枣’为试材, 研究了单花不同开放阶段花粉萌发率和内源激素的变化。枣树单花不同开放阶段的花粉萌发率不同, 湖南鸡蛋枣以萼片展平期花粉萌发率最高, 冬枣以初开期最高。冬枣花粉萌发率在整个花期始终小于3%。冬枣单花开放过程中较高水平的内源乙烯及低水平的赤霉素和玉米素与花粉萌发率低有关。鉴于冬枣的花粉萌发率极低而胚高度可育, 且鲜食品质极佳, 可以作为鲜食枣杂交育种的理想母本材料。
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| 关 键 词： | 枣 花粉 萌发 内源激素 |
| 文章编号： | 0513-353X（2005）04-0677-03 |
| 收稿时间： | 2004-12-08 |
| 修稿时间： | 2004-12-082005-01-28 |
Changes of Pollen Germination Rate and Endogenous Hormones during Single Flower Opening of Chinese Jujube |
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| Wang Jiurui,Liu Mengjun,Liang Haiyong.Changes of Pollen Germination Rate and Endogenous Hormones during Single Flower Opening of Chinese Jujube[J].Acta Horticulturae Sinica,2005,32(4):677-680. |
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| Authors: | Wang Jiurui Liu Mengjun Liang Haiyong |
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| Institution: | (College of Forestry, Agricultural University of Hebei, Baoding 071001, China; Research Center of Chinese Jujube, Agricultural University of Hebei, Baoding 071001, China) |
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| Abstract: | The changes of pollen germination rate(PGR) and endogenous hormones during single flower opening of Chinese jujube(Ziziphus jujuba Mill.)were studied using two cultivars 'Dongzao'and'Hunan Jidanzao'.The results showed that the PGR of Chinese jujube changed significantly during single flower opening.The PGR reached its highest at the stage of sepal flat in 'Hunan Jidanzao'and at the begining stage of opening in 'Dongzao'.PGR of 'Dongzao'kept lower than 3% during whole flower season.High level ethylene,low level GA_3 and Z during single flower opening were related to very low PGR in 'Dongzao'.In view of its severely low PGR,high fertility of embryo,as well as high quality for fresh consuming,'Dongzao'could be used as a desirable female parent in the cross breeding of Chinese jujube. |
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| Keywords: | Chinese jujube Pollen Germination Endogenous hormones |
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