冀东地区冬小麦新品系主要性状及产量相关性评价  

Evaluation on Main Characteristics and Yield Correlation of New Winter Wheat Lines in Eastern Hebei Region

作　　者：陆晴[1] 宋茂兴 马宏亮 甄志华 吴志会[1] LU Qing;SONG Maoxing;MA Hongliang;ZHEN Zhihua;WU Zhihui(Tangshan Academy of Agricultural Sciences,Tangshan,Hebei 063000,China;Crop Seed Station of Tangshan City,Tangshan,Hebei 063000,China)

机构地区：[1]唐山市农业科学研究院,河北唐山063000 [2]唐山市农作物种子站,河北唐山063000

出　　处：《作物研究》2022年第2期103-107,共5页Crop Research

基　　金：唐山市科技局重点研发项目(18120207);唐山市人才资助项目(202005023)。

摘　　要：为筛选适宜在冀东地区种植的冬小麦新品系,对所选取的14个小麦新品系的主要性状和抗寒性进行相关性分析。结果表明,不同品系间最高茎数、成穗数与千粒质量变异系数较大,依次为17.22%、14.15%、13.74%;成穗数与小麦产量具有显著相关性,相关系数为0.623;品系2、7、8、11产量较高,均达到7 886.4 kg/hm^(2)以上;品系2、7、11、12成穗数较高,达782.0万/hm^(2)以上,并显著高于其他品系;产量与越冬率和枯叶率呈显著相关,相关系数分别为0.429和-0.508,与冻害等级呈极显著相关,相关系数达到-0.714。综合分析,品系7可作为早熟抗寒优质资源,品系8为高产抗寒资源,品系2、7、11、12均可作为稳产耐寒资源加以利用。In order to screen new winter wheat lines suitable for planting in eastern Hebei region, the correlation analysis was carried out on the main characteristics and cold resistance of 14 new wheat lines. The results showed that the coefficient of variation of the highest number of stems, panicle number and 1000-grain weight among main characteristics of different lines were 17.22%,14.15% and 13.74%,respectively. There was a significant correlation between the panicle number and wheat yield, with the correlation coefficient being 0.623. The yields of lines 2,7,8 and 11 were higher, up to 7 886.4 kg/hm^(2). The panicle number of lines 2,7,11 and 12 were higher, up to more than 7 820 000 per hectare, which was significantly higher than that of other lines. The yield of different lines was significantly correlated with overwintering rate and rate of withered leaves, with correlation coefficients of 0.429 and-0.508,respectively, and extremely significantly correlated with freezing injury grade, with correlation coefficient of-0.714. Based on comprehensive analysis results, line 7 could be used as early-maturing and cold-resistant variety resource, line 8 could be used as high-yield and cold-resis-tant variety resource, and lines 2,7,11 and 12 could be utilized as stable-yield and cold-resistant variety resources.

关 键 词：冬小麦 性状 产量 抗寒性 相关分析 冀东地区 

分 类 号：S512.110.37[农业科学—作物学]