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| 水稻群体分蘖整齐度与自动调节的分析 | |
| 引用本文： | 徐正进,周丹卉,张苏萍,徐海,张喜娟.水稻群体分蘖整齐度与自动调节的分析[J].沈阳农业大学学报,2006,37(5):683-687. |
| 作者姓名： | 徐正进 周丹卉 张苏萍 徐海 张喜娟 |
| 作者单位： | 1. 沈阳农业大学,水稻研究所,农业部,作物生理与遗传改良重点开放实验室,辽宁省北方粳稻育种重点实验室,沈阳110161 2. 中国科学院,应用生态研究所,沈阳110034 3. 大石桥市职业高级中学,辽宁,大石桥,115101 |
| 基金项目： | 国家自然科学基金(30370866)，教育部博士学科点专项科研基金(20050157001) |
| 摘 要： | 采用变异系数法研究水稻分蘖整齐度的结果表明,水稻开始分蘖后分蘖平均数的品种间差异就达到极显著水平,一直持续到抽穗期,因而决定了穗数的品种间差异也达到极显著水平;水稻分蘖整齐度品种间差异前期没有达到显著水平,最高分蘖期以后达到显著水平,抽穗后又降低到显著水平以下;每次测定的水稻分蘖平均值均与以后平均值呈显著或极显著的正相关,不同时期分蘖整齐度与当时平均值呈显著或极显著的负相关,而且与以后平均值也呈显著或极显著的负相关;前期分蘖整齐度之间相关性变化较大,而后期分蘖数基本稳定,整齐度之间表现显著或极显著的正相关;总体看相邻穴间分蘖数基本表现为负相关,但是绝大多数未达到显著水平;分蘖整齐度及分蘖数与株高和叶片性状的相关性基本没有达到显著水平,但是分蘖数平均值有与叶片宽度和角度负相关的趋势。 |
| 关 键 词： | 水稻 经济性状 整齐度 自动调节 分蘖 |
| 文章编号： | 1000-1700(2006)05-0683-05 |
| 收稿时间： | 2006-04-20 |
| 修稿时间： | 2006年4月20日 |
Studies on Tiller Uniformity and Self-regulation in Rice |
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| XU Zheng-jin,ZHOU Dan-hui,ZHANG Su-ping,XU Hai,ZHANG Xi-juan.Studies on Tiller Uniformity and Self-regulation in Rice[J].Journal of Shenyang Agricultural University,2006,37(5):683-687. | |
| Authors: | XU Zheng-jin ZHOU Dan-hui ZHANG Su-ping XU Hai ZHANG Xi-juan |
| Institution: | 1 Rice Institute of Shen yang Agricultural University, Key Laboratory of Crop Physiology, Ecology, Genetics and Breeding, Ministry of Agrlculture/Key Laboratory of Northern Japonica Rice Breeding of Liaoning, Shenyang 110161, China;2 Institude of Applied Ecology, Chinese Academy of Sciences, Shenyang 110034, China ;3 Vocational School of Dashiqiao, Liaoning Dashiqiao 15101, China |
| Abstract: | The tiller uniformity(TU) was studied with coefficient of variation(CV) as index.The results were as follows: the difference of means of tillers(MT) among varieties was significant at 0.01 level after tillering,which continued to heading,hence the difference of panicles among varieties also reached the same significant level.The difference of TU among varieties was not significant in former stage and after heading,but significant after maximum tillering.The MT observed each time correlated to the later ones positively,the TU of different stages had a negative correlation with MT,both contemporaneous and later ones at 0.05 or 0.01 level.The correlation among TU changed in a wide range in former stage,while in later stage when the number of tillers(NT) were stable,they performed a positive correlation at 0.05 or 0.01 level.The NT between neighbor hills correlated to each other negatively,but most of them didn't reach a significant level.The correlations between TU,NT and plant height,leaf characters were not significant,while MT had a negative correlation with the width of leaf and leaf angle. |
| Keywords: | rice(Oryza Sativa L ) economic characters uniformity self-regulation tiller |
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