| 不同产量水平杂交水稻新组合主要性状对比分析 |
| |
| 引用本文： | 潘典进,罗冬玉,罗文清,周家华,杨理虎,王军民,刘善德.不同产量水平杂交水稻新组合主要性状对比分析[J].湖北农业科学,2017,56(17). |
| |
| 作者姓名： | 潘典进 罗冬玉 罗文清 周家华 杨理虎 王军民 刘善德 |
| |
| 作者单位： | 1. 荆门市农业技术推广中心,湖北荆门,448000;2. 荆门农业科学研究院,湖北荆门,448000;3. 钟祥市柴胡镇农业技术服务中心,湖北钟祥,431924;4. 武汉科珈种业科技有限公司,武汉,430070 |
| |
| 摘 要： | 对22个籼型杂交水稻新组合的主要性状和产量进行分析,以期整理出高产品种(组合)主要性状表现的共同特性。结果表明,高产品种(组合)在95%置信限下,主要性状水平为全生育期131.3~137.3 d,有效穗249.5万~317.9万穗/hm~2,株高119.5~131.7 cm,平均穗长24.6~27.2 cm,每穗总粒数164.2~225.4粒,结实率69.4%~82.3%,千粒重26.9~31.2 g。品种(组合)单一性状与产量的相关性分析表明,籼型杂交中稻生产欲夺取高产,宜选择生育期适中、植株半高秆或生物学产量较高、大穗大粒型品种,栽培过程中控制和调节好最高苗数,提高成穗率和确保一定的有效穗数。
|
| 关 键 词： | 籼型杂交水稻 性状 产量 比较 |
Comparative Analysis of Main Characters of New Hybrid Rice Combinations with Different Yield Levels |
| |
| PAN Dian-jin,LUO Dong-yu,LUO Wen-qing,ZHOU Jia-hua,YANG Li-hu,WANG Jun-min,LIU Shan-de.Comparative Analysis of Main Characters of New Hybrid Rice Combinations with Different Yield Levels[J].Hubei Agricultural Sciences,2017,56(17). |
| |
| Authors: | PAN Dian-jin LUO Dong-yu LUO Wen-qing ZHOU Jia-hua YANG Li-hu WANG Jun-min LIU Shan-de |
| |
| Abstract: | To obtain the common features of main characters of new hybrid rice combinations with high yield,the main characters and yield of 22 new combinations of indica hybrid rice was analyzed.The results show that,in the 95％ confidence limit,the main characters of level included:the whole growth periods are between 131.3 and 137.3 days;the effective ears per hectare are between 2.495 and 3.179 million ears;the plant heights are between 119.5 and 131.7 cm;the average ear lengths are between 24.6 and 27.2 cm;the average total grain numbers per panicle are between 164.2 and 225.4 grains,the setting percentages are 69.4％ to 82.3％ and the thousand grain weights are between 26.9 and 31.2 g.The correlation analysis results of the characters and yields between the single variety and the combinations show that,to obtain high yield,the varieties with moderate growth period,higher plant height or biological yield,larger panicle and bigger kernel should be chosen.In addition,the maximum tillers should be controlled and adjusted,and the spike rate should be improved to ensure the effective in the cultivation process. |
| |
| Keywords: | indica hybrid rice characters yield comparison |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
