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当前位置: 首页 > 文章 > 滇西北不同居群牡丹种子性状综合评估 江西农业学报 2017 (7) 25-30
Position: Home > Articles > Comprehensive Evaluation of Seed Characters of Different Peony (Paeonia suffruticosa) Populations in Northwest Yunnan Acta Agriculturae Jiangxi 2017 (7) 25-30

滇西北不同居群牡丹种子性状综合评估

作  者：
苏泽春;李兆光;和桂青;徐天才;薛润光
单  位：
云南省农业科学院高山经济植物研究所
关键词：
滇西北;居群;牡丹;灰色关联度分析
摘  要：
从与牡丹籽油产业发展息息相关的种子性状着手,借助方差分析和灰色关联分析,探讨了11个野生牡丹居群的优劣,以及12个种子性状与样方内种子产量的关系。方差分析结果表明:居群的平均表型分化系数为88.40%,居群间方差分量占总变异的80.57%,说明居群间的变异是表型变异的主要来源。单荚种子数、种子重在居群间方差分量百分比中占有较高的比重;维西县维登山加村和玉龙县大平坝居群在种子重、种子横径、种子纵径、单荚重、单荚种子数方面都显著高于其他居群,中甸县格咱冲古村居群和剑川县干禾村居群也在不同程度上表现出一定的优势。灰色关联分析结果表明:玉龙县大平坝居群始终是优势居群,维西县维登山加村居群的优势被削弱,中甸县格咱冲古村和剑川县干禾村居群的优势开始显现。从样方种子产量和其他农艺性状的关联分析可以看出,与样方内种子产量关联最大的几个性状是单荚总数、荚果总数、单荚种子数,而种子横径、种子重等指标明显被弱化了,在今后培育新品种过程中,在荚果选择方面,应优选单株荚果多、单果结荚数大的材料;在种子性状方面,种子饱满程度要注重培养种子横径,提高种子重。
译  名：
Comprehensive Evaluation of Seed Characters of Different Peony (Paeonia suffruticosa) Populations in Northwest Yunnan
作  者：
SU Ze-chun;LI Zhao-guang;HE Gui-qing;XU Tian-cai;XUE Run-guang;Alpine Economic Plant Research Institute,Yunnan Academy of Agricultural Sciences;
关键词：
Northwest Yunnan;;Population;;Peony;;Grey correlation analysis
摘  要：
The advantages and disadvantages of 11 wild peony( Paeonia suffruticosa) populations in northwest Yunnan were explored according to their seed characters by using the methods of variance analysis and grey correlation analysis,and the relationships between 12 seed characters and seed yield of peony were studied. The results of variance analysis showed that the average phenotypic differentiation coefficient of peony population was 88.40%,and the variance component among populations accounted for 80.57% of the total variation,suggesting that the variation among populations was the major source of phenotypic variation.The seed number per pod and seed weight had a higher proportion of variance components among populations. The seed weight,seed transverse diameter,seed vertical diameter,single-pod seed weight and seed number per pod of Weixi population and Yulong population were significantly higher than those of the other populations,and Zhongdian population and Jianchuan population also had some advantages in seed characters. The grey correlation analysis of quadrat survey data indicated that Yulong population was always the dominant population,while the advantage of Weixi population was weakened,and the advantages of Zhongdian population and Jianchuan population began to appear. The total number of single pods,total number of pods,and seed number per pod had a greater correlation with quadrat seed yield,while the seed transverse diameter,seed weight and so on were obviously weakened. Therefore,in the future peony new variety breeding process,we should select the parent materials with more single-plant pods,more single-fruit pods,bigger seed transverse diameter,and higher seed weight.

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