| 不同水稻品种对孕穗期低温的敏感性分析 |
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| 引用本文： | 王立志,项洪涛,王连敏,王春艳,李忠杰,洛育,李锐. 不同水稻品种对孕穗期低温的敏感性分析[J]. 黑龙江农业科学, 2014, 0(9): 14-17 |
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| 作者姓名： | 王立志 项洪涛 王连敏 王春艳 李忠杰 洛育 李锐 |
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| 作者单位： | 黑龙江省农业科学院耕作栽培研究所,黑龙江哈尔滨,150086 |
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| 基金项目： | 公益性行业(气象)科研专项资助项目(GYHY 201306036)；黑龙江省农业科技创新工程资助项目 |
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| 摘 要： | 为研究不同水稻品种的耐冷程度,减少产量损失,以水稻品种空育131、垦稻12、松粳9号和龙粳11为材料,采用盆栽种植方式于孕穗期进行恒温15℃和变温15℃低温处理,研究孕穗期低温胁迫对水稻空壳率的影响以及不同品种水稻对低温的敏感性。结果表明:随着低温时间延长,水稻空壳率显著增加,且同一品种恒温15℃较变温15℃的空壳率高;4个水稻品种在孕穗期的耐冷性总体表现为空育131松粳9号垦稻12龙粳11,其中龙粳11在孕穗期基本不具备耐冷性。
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| 关 键 词： | 水稻 孕穗期 冷害 空壳率 敏感性 |
Analysis on Susceptibility to Chilling Injury of Different Rice Cultivars at Booting Stage |
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| WANGLi-zhi,XIANGHong-tao,WANGLian-min,WANGChun-yan,LIZhong-jie,LUOYu , LIRui. Analysis on Susceptibility to Chilling Injury of Different Rice Cultivars at Booting Stage[J]. Heilongjiang Agricultural Science, 2014, 0(9): 14-17 |
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| Authors: | WANGLi-zhi XIANGHong-tao WANGLian-min WANGChun-yan LIZhong-jie LUOYu LIRui |
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| Affiliation: | (Crop Tillage and Cultivation Institute of Heilongjiang Academy of Agricultural Sciences, Harbin, Heilongjiang 150086) |
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| Abstract: | In order to study cold tolerance of different rice cultivars and reduce production loss ,taking Kongyu 131 ,Kendao 12 ,Songjing 9 and Longjing 11 as test materials ,the low temperature stress with constant and var-iable 15℃ were carried on at booting stage .The effect of low temperature on percentage of unfilled grains of rice and the susceptibility to chilling injury were studied .The results showed that compared with CK ,the per-centage of unfilled grains of rice increased significantly with the prolonged time of low temperature ,and low temperature stress of constant 15℃ was higher than low temperature stress of variable 15℃ .The resistance to low temperature at booting stage were Kongyu 131＆gt;Songjing 9＆gt; Kendao 12＆gt;Longjing 11 . |
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| Keywords: | rice booting stage chilling injury percentage of unfilled grains susceptibility |
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