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| 不同播期条件下小麦基部节间性状的相关性分析 | |
| 引用本文： | 崔勇,谢全刚,刘宾,张晗,田纪春.不同播期条件下小麦基部节间性状的相关性分析[J].山东农业科学,2012,44(4):20-23. |
| 作者姓名： | 崔勇 谢全刚 刘宾 张晗 田纪春 |
| 作者单位： | 1. 山东农业大学农学院/作物生物学国家重点实验室,山东泰安,271018 2. 河西学院,甘肃张掖,734000 3. 山东省农业科学院作物研究所,山东济南,250100 |
| 基金项目： | 国家自然科学基金，转基因生物新品种重大专项 |
| 摘 要： | 小麦基部节间长度和茎秆直径是鉴评小麦抗倒伏性的重要指标。以两个主栽小麦品种花培3号和豫麦57为亲本获得的含有168个株系的DH(双单倍体)群体为材料,于3个不同的环境下种植,对小麦基部第一节间长度(L1)、基部第二节间长度(L2)、基部第二节间直径(Dia)进行相关性分析。结果表明:DH群体的上述3个性状均表现出双向超亲分离现象,并接近于正态分布。基部第一、二节间长度呈极显著正相关,第二节间直径与一、二节间长度呈极显著正相关,三者关系极为密切。3个环境中,基部第一、二节间长度间的相关性都是最高的,相关系数达0.833**。与正常播种相比,晚播条件下,基部第二节间长度与基部第一节间长度、基部第二节间直径间的相关系数明显变小(0.583**0.650**,0.263**0.408**),而基部第一节间长度与基部第二节间直径间的相关性没有明显变化(0.304**≈0.309**)。 |
| 关 键 词： | 播期 小麦 基部节间 相关性分析 |
Correlation Analysis of Wheat Basal Elongated Internode Characteristics at Different Sowing Dates |
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| CUI Yong , XIE Quan-gang , LIU Bin , ZHANG Han , TIAN Ji-chun.Correlation Analysis of Wheat Basal Elongated Internode Characteristics at Different Sowing Dates[J].Shandong Agricultural Sciences,2012,44(4):20-23. | |
| Authors: | CUI Yong XIE Quan-gang LIU Bin ZHANG Han TIAN Ji-chun |
| Institution: | 1(1.College of Agronomy,Shandong Agricultural University/ State Key Laboratory of Crop Biology, Taian 271018,China;2.Hexi College,Zhangye 734000,China; 3.Crop Research Institute of Shandong Academy of Agricultural Sciences,Jinan 250100,China) |
| Abstract: | The basal elongated internode length and stalk diameter are important parameters for evaluating lodging resistance of wheat.In this paper,a doubled haploid(DH) population comprising 168 progeny lines,which were derived from a cross between two elite Chinese wheat cultivars Huapei 3 and Yumai 57,was cultivated under three conditions.The correlation analysis was done on the relationships among the length of the first and second basal elongated internodes and stalk diameter.The results indicated that the three characteristics of the DH population displayed transgressive segregation in two directions and the segregation patterns largely conformed to normal distribution.The correlation between the length of the first and second basal elongated internodes was very significant,and also between the diameter of second internode and the length of the first and second basal elongated internodes.The correlation coefficient between the length of the first and second basal elongated internodes was the largest under all three conditions,with the value as 0.833**.The coefficients of correlation between the length of the first and second basal elongated internodes and between the length of second basal elongated internode and the second internode diameter under late sowing condition both decreased markedly compared to those under normal conditions(0.583**<0.650**,0.263**<0.408**).However,the correlation coefficient between the length of first internode and the diameter of second basal elongated internode did not change significantly(0.304**≈0.309**). |
| Keywords: | Seeding time Wheat Basal enlongated Internode Correlation analysis |
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