| 干旱胁迫对不同穗型超级稻品种产量及穗部性状的影响 |
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| 引用本文： | 张卫星,朱德峰,林贤青,张玉屏,陈惠哲,朱智伟.干旱胁迫对不同穗型超级稻品种产量及穗部性状的影响[J].干旱地区农业研究,2010,28(1):255-260. |
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| 作者姓名： | 张卫星 朱德峰 林贤青 张玉屏 陈惠哲 朱智伟 |
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| 作者单位： | 1. 中国水稻研究所,浙江,杭州,310006;农业部稻米及制品质量监督检验测试中心,浙江,杭州,310006
2. 中国水稻研究所,浙江,杭州,310006 |
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| 基金项目： | 农业部重大科技专项(200701);;中央级公益性科研院所专项资金(CNRRI100015);;浙江省重大科技专项(省长工程)(2006C12001);;现代农业产业技术体系建设专项资金(2009) |
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| 摘 要： | 通过水分仪结合称重法的盆栽试验,在水稻幼穗分化至灌浆结实的不同时段,人为控制土壤水分以模拟干旱胁迫的发生,研究了中度干旱胁迫对不同穗型超级稻品种产量因素及穗部性状的影响。结果表明:不同时段的中度干旱胁迫对水稻产量及穗部性状都有影响,最终籽粒产量均比正常供水时显著下降,穗分化15~30 d控水处理影响最大,其次是开花至花后15 d和花后15~30 d的控水处理,减产原因主要是结实率下降和千粒重降低。不同品种受影响的程度有所不同,超级稻品种较普通杂交稻品种来说相对要小,但也有受影响较大的超级稻品种,大穗型品种(国稻6号、两优培九、Ⅱ优7号)受干旱胁迫的影响程度要低于中穗型品种(天优998、Ⅱ优602、汕优63)。
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| 关 键 词： | 超级稻 干旱胁迫 产量因素 穗部性状 |
The effect of drought stress on yield and panicle traits of different type super rice varieties during panicle initiation to grain filling stage |
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| ZHANG Weixing,ZHU Defeng,LIN Xianqing,ZHANG Yuping,CHEN Huizhe,ZHU Zhiwei.The effect of drought stress on yield and panicle traits of different type super rice varieties during panicle initiation to grain filling stage[J].Agricultural Research in the Arid Areas,2010,28(1):255-260. |
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| Authors: | ZHANG Weixing ZHU Defeng LIN Xianqing ZHANG Yuping CHEN Huizhe ZHU Zhiwei |
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| Institution: | 1.China National Rice Research Institute;Hangzhou;Zhejiang 310006;China;2.Rice Product Quality Inspection and Supervision Center;Ministry of Agriculture;China |
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| Abstract: | With experiment cultivated in pots and contrived simulation of drought stress,method to determine soil moisture by electronic balance(made in Shanghai) and W.E.T Sensor(ML2x type,made in USA),the effect of drought stress on panicle traits and yield components of different panicle type rice varieties(more or middle grains per panicle) was studied.The results showed that middle level drought stress of different stage from panicle initiation to grain filling had various degree of influence on rice panicle char... |
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| Keywords: | super rice drought stress yield and its components panicle straits |
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