摘要
应用灰色系统理论中的关联度分析方法,对山西大丰种业有限公司2003—2005年玉米鉴定试验产量居前10位高产组合的数量性状进行了综合分析。结果表明,山西稀植大穗玉米生态区,玉米各数量性状对产量的影响程度为:穗粒质量>穗粗>穗粒数>行粒数>穗长>穗行数>株高>穗位高;选育或引进高产((15 321.0±954.6)kg/hm2)玉米品种时,在选用抗病抗倒、抗旱优质、生育期适中的基础上,重点选择穗粒质量(302.1±24.9)g、穗粗(6.2±0.4)cm、穗粒数(808.5±70.6)粒、行粒数(43.8±4.2)粒、穗长(23.6±2.0)cm、穗行数(18.5±1.3)行、株高(286.9±26.0)cm和穗位高(122.5±19.3)cm的玉米新品种。
Using method of grey correlation degree analysis, integreated analysis were conducted to quantitative traits for top 10 high-ylelding combinations in 2003-2005 maize identifying test by Dafeng Seeds Company Ltd.. The results showed that in all ecological areas, field affecting degrees of all quantitative traits were in an order of cob grain mass 〉 cob diameter 〉 cob grin number 〉 row grain number 〉 cob length 〉 cob row number 〉 plant height 〉 cob height. In high-yielding maize （（ 15 321.0± 954.6）kg/hm2）breeding or introduction, new species with cob grain mass（ 302.1 ±24.9）g, cob diameter（6.2 ± 0.4）cm, cob grain number （808.5 ± 70.6）, row grain number （43.8 ± 4.2）, cob length （23.6± 2.0）cm, cob row number （ 18.5 ± 1.3）, plant height （286.9 ± 26.0） cm, cob height （ 122.5± 19.3 ） cm would be standards for goal maize, on basis of disease resistance, lodging resistance, drought resistance, fine quality, and medium growth period.
出处
《山西农业科学》
2011年第9期930-932,共3页
Journal of Shanxi Agricultural Sciences
基金
山西省科技攻关项目(2009GB2A300034)
关键词
高产
玉米
品种
灰色关联度分析
high yield
maize
variety
grey correlation degree analysis
