水稻良种“穗系标准化繁育”关键技术的研究  

The standardized head-line multiplication:the key techniques for elite varieties of rice

作　　者：罗军[1] 李小林[1] 胡强[1] 罗红[1] 卢义宣[1] 番兴明[1] 涂建[1] 王增明[2] 保自乔 李明先 黄德权 

机构地区：[1]云南省农业科学院粮食作物研究所,云南昆明650201 [2]弥勒县农业技术推广中心,云南弥勒652300 [3]宜良县农业技术推广中心,云南宜良652100 [4]祥云县种子公司,云南祥云672100 [5]水富县种子公司,云南水富657800

出　　处：《西南农业学报》2006年第4期594-597,共4页Southwest China Journal of Agricultural Sciences

基　　金：云南省"十五"科技攻关项目资助(2001NG60)

摘　　要：对稻种原种常规繁育方法（三圃制）进行了6年（1999～2004）研究，并作了大量的改进，提出了稻种“穗系标准化繁育”原种的新方法，即“单穗选择，以穗为系，单本栽培，穗系比较，田间目测，整系去劣，混系繁殖”28字新方法。原种繁出来后进行快速繁殖，品系比较．区域试验，多点鉴定，示范推广。研究结果显示，云恢188、云恢290、滇优香1号。3个品种采用“穗系标准化繁育”与常规的“三圃制”繁育相比较，纯度分别达99．47％、99．93％、98．12％。原种繁出来后在云南7～10个不同生态条件下进行区域比较，试验结果：3个品种的产量分别提高了1．12％、0．97％、1．04％，其它农艺性状无明显差别。实践证明，采用“穗系标准化繁育”比“三圃制”繁育，大大简化了良种繁育程序，提高了良种繁育的纯度，提高了效率，延长了优良品种的应用推广年限。Based on a 6 year-study on the traditional method of rice foundation seed multiplication （3 plots system）, the standardized head-line multiplication method was proposed.The key points of the new method are selecting the desired flee head as a head line,planting with single seedling, comparing the lines by eyes in the field, eliminating the undesired lines, bucking the seeds of desired lines. Three varieties, ‘ Yunhui188＇, ‘ Yunhui290＇ and‘ D ianyouxiangl # ＇, were tested. The results indicated, cmnpared with‘ plots system＇, the standardized head-line method inproved the seed quality,the seed purities increased up to 99.93% ,99.47% and 98.12% ,respectively. The yields of the varieties from stock seeds increased 1.12% ,0.97% and 1.04% respectively in a regional test at 7 - 10 sites in Yunnan province. It was proved that the ptoposed method simplified the seed multiplication program, increased seed purity and multiplication efficiency, and prolonged the utilization cycle of elite varieties.

关 键 词：稻种 穗系标准化 繁育 关键技术 

分 类 号：S511.038[农业科学—作物学]