| Preliminary Study on the Source-sink Relationship of Bt Transgenic Cotton |
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| 作者姓名： | 田晓莉 杨培珠 段留生 王保民 何钟佩 |
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| 作者单位： | 中国农业大学作物化学控制研究中心 |
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| 摘 要： | 以转Ｂｔ基因抗虫棉中棉所３０（ＣＣＲＩ３０）及其对照品种中棉所１６（ＣＣＲＩ１６）为材料，在大田和温室盆栽条件下初步研究了Ｂｔ抗虫棉源库器官的发育特点和源库关系。试验结果表明，转Ｂｔ基因抗虫棉中棉所３０的光合叶面积及根系活力均低于对照品种中棉所１６，源器官的功能较为低下；但前者库器官的活性较强，对同化物的竞争能力高于后者。虽然中棉所３０在盛花期和结铃期提高了叶片中１４Ｃ同化物的输出率，但仍然不能从根本上解决源器官的制造能力和库器官需要之间的矛盾。文中提出了Ｂｔ抗虫棉生产中栽培措施的主攻方向。
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| 关 键 词： | 转Bt基因 抗虫棉 源器官功能 库活性 源库关系 |
Preliminary Study on the Sourcesink Relationship of Bt Transgenic Cotton |
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| TIAN
Xiaoli,YANG Peizhu,DUAN Liusheng,WANG Baomin,He Zhongpei.Preliminary Study on the Source-sink Relationship of Bt Transgenic Cotton[J].Cotton Science,1999(3). |
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| Authors: | TIAN
Xiaoli YANG Peizhu DUAN Liusheng WANG Baomin He Zhongpei |
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| Abstract: | Bt transgenic
cotton CCRI 30 and its control CCRI 16 were used to study sourcesink relationship of Bt cotton
under field and greenhouse condition. The function of source organ of CCRI 30 is lower than that
of CCRI 16; however, the sink activity of the former is stronger than that of the latter. Although
the export of 14 Clabelled assimilates from leaves of CCRI 30 was enhanced at full-flower stage
and bollforming stage, the problem was not solved thoroughly. The paper points out the
direction for Bt cotton culture in the production. |
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| Keywords: | Bt transgenic cotton source function sink activity sourcesink relation |
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