| 水稻不同生育期茎秆生化成分的变化及其与抗倒伏能力的关系 |
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| 引用本文： | 杨艳华,朱镇,张亚东,陈涛,赵庆勇,周丽慧,姚姝,王才林. 水稻不同生育期茎秆生化成分的变化及其与抗倒伏能力的关系[J]. 植物生理学通讯, 2011, 0(12): 1181-1187 |
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| 作者姓名： | 杨艳华 朱镇 张亚东 陈涛 赵庆勇 周丽慧 姚姝 王才林 |
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| 作者单位： | [1]江苏省农业科学院粮食作物研究所江苏省优质水稻工程技术研究中心国家水稻改良中心南京分中心,南京210014 [2]江苏大学生命科学研究院,江苏镇江212013 |
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| 基金项目： | 江苏省农业科技自主创新基金（CX[10]401） |
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| 摘 要： | 以抗倒伏品种‘南粳44’、‘武运粳7号’与不抗倒伏品系‘宁7412’为试验材料,通过对水稻不同生育期茎秆硅、钾、钙、镁含量及可溶性糖含量的测定,结合氮钾肥配比试验,研究了水稻不同生育期茎秆硅、钾、钙、镁含量及可溶性糖含量的变化及其与茎秆抗倒伏能力的关系。结果表明：水稻茎秆的硅、钙、镁含量及可溶性糖含量随生育进程呈上升趋势,而茎秆的钾含量呈现先降后升的趋势。在不同施肥水平条件下,水稻茎秆的硅、钾、钙、镁含量及可溶性糖含量存在一定的差异。抗倒伏品种‘南粳44’和‘武运粳7号’茎秆基部抗折力较强,施肥对水稻茎秆基部抗折力有一定的影响。水稻生殖生育期茎秆的硅含量、可溶性糖含量与茎秆基部抗折力呈极显著正相关（P〈0.01）,与水稻抗倒伏能力的强弱有一定的关系。
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| 关 键 词： | 水稻 生化成分 抗折力 倒伏指数 抗倒性 |
Changes of Stem Biochemical Components in Different Growth Stages of Rice and Their Relationship with Lodging Resistance |
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| YANG Yan-Hua,＇,ZHU Zhenl,ZHANG Ya-Dong,CHEN Ta,ZHAO Qing-Yongl,ZHOU Li-Hui,YA,She,WANG Cai-Lin. Changes of Stem Biochemical Components in Different Growth Stages of Rice and Their Relationship with Lodging Resistance[J]. Plant Physiology Communications, 2011, 0(12): 1181-1187 |
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| Authors: | YANG Yan-Hua ＇ ZHU Zhenl ZHANG Ya-Dong CHEN Ta ZHAO Qing-Yongl ZHOU Li-Hui YA She WANG Cai-Lin |
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| Affiliation: | Institute of Food Crops, Jiangsu Academy of Agricultural Sciences, Jiangsu High Quality Rice R ＆ D Center, Nanjing Branch of China National Center for Rice Improvement, Nanjing 210014, China, 2Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China |
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| Abstract: | Changes of SiO2, K20, calcium, magnesium, rice and their relationship with lodging resistance were and soluble sugar contents in different growth stages of investigated through nitrogen, potassium fertilizers test with three rice cultivars （＇Nanjing 44＇ and ＇Wuyunjing 7＇, lodging resistance; ＇Ning 7412＇, easy lodging）. The results indicated that SiO2, calcium, magnesium, and soluble sugar contents were basically increased with the development process. However, K20 content showed the trend of high-low-high. The SiO2, K20, calcium, mag- nesium, and soluble sugar contents showed some differences in different fertilizer application level. Meanwhile, application of nitrogen and potassium fertilizer had obvious effect upon resistance snapping of rice basal stems. Correlation analysis showed that resistance snapping of rice basal stems was very significantly positive corre- lated to SiO2 and soluble sugar contents in rice stem of the reproductive stage （P〈0.01）, which had a certain relationship with lodging resistance of rice. |
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| Keywords: | rice biochemical components resistance snapping lodging index lodging resistance |
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