| 棉花双隐性核不育系杂交制种高产栽培技术研究 |
| |
| 引用本文： | 王治斌,欧俊梅,杨伯祥.棉花双隐性核不育系杂交制种高产栽培技术研究[J].中国农学通报,2010,26(23):181-184. |
| |
| 作者姓名： | 王治斌 欧俊梅 杨伯祥 |
| |
| 作者单位： | 四川省绵阳市农业科学研究所,绵阳621000 |
| |
| 摘 要： | 为了探索其制种高产栽培技术,充分挖掘该系列不育系的制种产量潜力,采用四元二次正交旋转回归设计,研究了氮(N)、磷(P)、钾(K)及密度对棉花双隐性核不育系2095-2A杂交制产量的综合效应。试验结果表明:(1)氮肥、密度、磷肥三因素对产量存在显著的影响,氮肥密度磷肥钾肥;(2)最佳高产方案为:N293.56～332.76kg/hm2、P2O5141.05～172.84kg/hm2、K2O130.05～188.99kg/hm2、密度为2.6426～2.9382万株/hm2;(3)K和单铃重的相关系数为0.518,制种生产中应重视钾肥的施用量以提高种子质量;(4)公顷铃数与籽棉产量的相关性达极显著,因此,应把提高公顷铃数作为提高制种产量的主攻方向。
|
| 关 键 词： | 氮肥 氮肥 密度 精量穴直播 产量 |
| 收稿时间： | 2010/6/24 0:00:00 |
| 修稿时间： | 2010/8/20 0:00:00 |
Study on Cultural Technique for High Yield in Hybrid Seed Production of ms5ms6 Male-sterile Lines |
| |
| Wang Zhibin,Ou Junmei,Yang Boxiang.Study on Cultural Technique for High Yield in Hybrid Seed Production of ms5ms6 Male-sterile Lines[J].Chinese Agricultural Science Bulletin,2010,26(23):181-184. |
| |
| Authors: | Wang Zhibin Ou Junmei Yang Boxiang |
| |
| Institution: | (Institute of agricultural science of Mianyang City,Mianyang 621023) |
| |
| Abstract: | This experiment based on the design of 4 factors and 5 level secondary orthogonal regression was to make the target function of ginned cotton yield.The results showed：density,amount of N applied,amount of K applied had the great influenced on yield of ginned cotton,in which,the influence of density was the greatest,and that of amount of K applied was the smallest.Based on the analytical results,the regression equation of the ginned-cotton total yield was formed as followed：N 293.56-332.76 kg/hm 2,P 2 O 5 141.05-172.84 kg/hm 2,K 2 O 130.05-188.99 kg/hm 2,density 26426-29382 plants/hm 2.The correlation coefficient between K and boll weight was 0.518,the amount of potassium fertilizer should be valued to improve the quality of seeds in seed production.The boll number per hm 2 and ginned cotton output correlation coefficient was extremely obvious,therefore,to improve the boll number per hm 2 was the main way to raise the seeds yield. |
| |
| Keywords: | Bt cotton male-sterile lines hybrid seed production cultural technique regression model |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《中国农学通报》浏览原始摘要信息 |
| 点击此处可从《中国农学通报》下载免费的PDF全文 |
|
