| 库-源关系对枣树14C-光合产物分配的影响 |
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| 引用本文： | 刘平,温陟良,彭士琪,郭振怀.库-源关系对枣树14C-光合产物分配的影响[J].林业科学,2003,39(4):37-42. |
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| 作者姓名： | 刘平 温陟良 彭士琪 郭振怀 |
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| 作者单位： | 1. 河北农业大学中国枣研究中心,保定,071001
2. 河北农业大学园艺学院,保定,071001 |
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| 摘 要： | 运用^14C示踪技术对赞皇大枣果实发育期库—源比例和相对位置对^14C—光合产物在不同器官中的分配进行了研究。结果表明：果实缓慢生长期间，与单果枣吊相比，双果枣吊果实的放射比活性下降，但是果实获得的^14C—光合产物量增加了6．68％；枣吊去叶处理(均匀去掉一半叶片)后，剩余叶片的光合产物输出率增加了17．06％，果实获得的标记光合产物增加了15．26％；当果实一侧叶片去除时，其异侧叶片也能提供一定量的光合产物供果实生长发育所需；并且，同一枣股不同枣吊之间也存在着光合产物的相互交换。本文从营养学角度对枣树低坐果率的原因进行了探讨。
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| 关 键 词： | 库-源关系 枣树 ^14C-光合产物 运输分配规律 影响因素 果实 生长发育 |
| 修稿时间： | 2001年6月11日 |
EFFECT OF SINK-SOURCE RELATIONSHIPS ON PARTITIONING OF 14C PHOTOSYNTHATES IN CHINESE DATE(ZIZYPHUS JUJUBA) |
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| Liu Ping.EFFECT OF SINK-SOURCE RELATIONSHIPS ON PARTITIONING OF 14C PHOTOSYNTHATES IN CHINESE DATE(ZIZYPHUS JUJUBA)[J].Scientia Silvae Sinicae,2003,39(4):37-42. |
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| Authors: | Liu Ping |
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| Abstract: | The effect of sink source ratio and position on partitioning of 14 C photosynthates in Chinese Date was studied by 14 C tracer technique in this paper.The results showed that compared with one\|fruit branch, 14 C specific activity of fruits of two\|fruit branch decreased while total 14 C photosynthates increased by 6 68%. The proportion of photosynthates exported from remained leaves was raised by 17 06% when the leaves of fruit branch were removed(half of all),and the proportion of labeled photosynthates imported to fruits was also raised by 15 26%;The photosynthates exchanged mutually among fruit branches at the same mother branch; The other side leaves could provide fruits with photosynthates when the same side leaves were removed. The reason of lower fruit set was also discussed. |
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| Keywords: | Chinese Date (Zizyphus jujuba) Sink\|source ratio Sink source position 14C photosynthates Partitioning |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
