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| 硅肥和钙肥对超级杂交稻茎秆抗倒力学的影响 | |
| 引用本文： | 邓文,青先国,蒲熙,王思哲,龚浩如. 硅肥和钙肥对超级杂交稻茎秆抗倒力学的影响[J]. 湖南农业大学学报(自然科学版), 2008, 34(5) |
| 作者姓名： | 邓文 青先国 蒲熙 王思哲 龚浩如 |
| 作者单位： | 1. 湖南农业大学生物科学技术学院,湖南,长沙,410128;湖南省农业科学院,湖南,长沙,410125 2. 国家杂交水稻工程技术研究中心,湖南,长沙,410125 3. 湖南农业大学农学院,湖南,长沙,410128 4. 湖南省水稻研究所,湖南,长沙,410125 |
| 摘 要： | 比较了3种不同的施硅肥、钙肥水平下超级杂交稻品种准两优527、两优293生育后期的茎秆抗倒力学差异.结果表明:两优293的倒4节间折断弯矩M明显大于准两优527,主要因为构成茎秆材料数量的增加;施硅肥对提高倒4节间M值、降低折断指数BI作用明显,尤以中量(五水偏硅酸钠的施用量为300 kg/hm2)最佳;施钙肥不利于降低准两优527成熟期的BI值,但能明显提高两优293倒4节间的抗折断能力,最佳施钙量为中量(熟石灰施用量450 kg/hm2);在不同品种间或不同处理下,超级杂交稻的主要茎秆材料学参数M值、BI值在生育后期的变化趋势不一致. |
| 关 键 词： | 水稻 倒伏 硅肥 钙肥 |
Effects of silicon and calcium application on the material characteristics of super hybrid rice |
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| DENG Wen,QING Xian-guo,PU Xi,WANG Si-zhe,GONG Hao-ru. Effects of silicon and calcium application on the material characteristics of super hybrid rice[J]. Journal of Hunan Agricultural University, 2008, 34(5) | |
| Authors: | DENG Wen QING Xian-guo PU Xi WANG Si-zhe GONG Hao-ru |
| Affiliation: | DENG Wen1a,2,QING Xian-guo3,PU Xi1b,WANG Si-zhe1b,GONG Hao-ru4 (1.a.College of Bioscience , Biotechnology,b.College of Agronomy,HNAU,Changsha 410128,China,2.Hunan Academy of Agricultural Sciences,Changsha 410125,3.China National Hybrid Rice Research , Development Center,4.Hunan Rice Research Institute,China) |
| Abstract: | The study focused on the lodging resistance and related material characteristics on the super hybrid rice during the late growth stages. Zhunliangyou 527 and Liangyou 293 were investigated under 3 silicon and calcium levels. The results showed that the N4 culm breaking moment value M of Liangyou 293 was higher than that of Zhunliangyou 527 obviously, mainly because of increasing of the amount of composition of culm. Silicon application enhanced M value and reduced breaking index (BI) obviously, best under m... |
| Keywords: | rice lodging resistance silicon calcium |
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