| 直立穗型品种结实率与源库关系的分析 |
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| 引用本文： | 周淑清,侯隽,徐正进,宋辉.直立穗型品种结实率与源库关系的分析[J].沈阳农业大学学报,2006,37(2):141-143. |
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| 作者姓名： | 周淑清 侯隽 徐正进 宋辉 |
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| 作者单位： | 1. 沈阳农业大学,水稻研究所,沈阳,110161
2. 沈阳种子中心批发市场,沈阳,110034 |
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| 基金项目： | 国家自然科学基金项目(30370866) |
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| 摘 要： | 以直立穗型水稻辽粳5号、辽粳454和弯曲穗型品种辽盐16号为试验材料,通过源库处理,对两种水稻品种的结实性与源库的关系进行了比较分析。研究表明:品种间结实率差异显著,辽粳5号低于辽盐16号,辽粳454结实率最高;不同部位籽粒结实率不同,上部结实率高于中下部,一次枝梗的结实率比较稳定,中下部二次枝梗的结实率较低;减源处理后,辽粳5号结实率下降最明显,辽盐16号居中,辽粳454次之;减库处理后,辽粳5号、辽盐16号结实率最高,而辽粳454略有下降;剪去剑叶,辽盐16号、辽粳5号结实率下降明显;相反,剪去一半倒二叶和倒三叶,则有利于其结实率的提高。
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| 关 键 词： | 水稻 结实率 减源疏库 穗型 |
| 文章编号： | 1000-1700(2006)02-0141-03 |
| 收稿时间： | 2005-05-20 |
| 修稿时间： | 2005年5月20日 |
Analysis on Seed Setting Rate and Relationship between Source and Sink of Erect Panicle Rice Cultivars |
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| ZHOU Shu-qing,HOU Jun,XU Zheng-jin,SONG Hui.Analysis on Seed Setting Rate and Relationship between Source and Sink of Erect Panicle Rice Cultivars[J].Journal of Shenyang Agricultural University,2006,37(2):141-143. |
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| Authors: | ZHOU Shu-qing HOU Jun XU Zheng-jin SONG Hui |
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| Institution: | 1.Rice Institute, Shenyang Agricultural University, Shenyang 110161, China; 2 .Shenyang Wholesale Market of Seeds Center, Shenyang 110034, China |
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| Abstract: | The erect panicle rice varieties Liaojing 5,Liaojing 454 and curved panicle variety Liaoyan16 were studied.The seed-setting rate and its relationship with source and sink by reducing source or sink were examined.The results showed that significant differences of seed-setting rate existed among the varieties,the seed-setting rate of different cultivars was in the order of Liaojing 5the lower part,and the the seed-setting rate of primary branch was high and relative steady on the panicle axis,and the seed-setting rate of secondary branch was lower. The seed-setting rate of Liaojing 5 and Liaoyan 16 fell significantly after being cut flag leaf,whereas seed-setting rate rose by clipping half of the top 2nd leaf or top 3rd leaf. |
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| Keywords: | rice seed-setting rate source-sink treatment panicle type |
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