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冬枣优良单株果实品质的因子分析与综合评价#br#
引用本文:马庆华,李永红,梁丽松,李琴,王海,许元峰,孙玉波,王贵禧.冬枣优良单株果实品质的因子分析与综合评价#br#[J].中国农业科学,2010,43(12):2491-2499.
作者姓名:马庆华  李永红  梁丽松  李琴  王海  许元峰  孙玉波  王贵禧
作者单位:(中国林业科学研究院林业研究所/国家林业局林木培育重点实验室);
基金项目:国家"十一五"科技支撑计划项目,科技部农业科技成果转化资金项目,中国林业科学研究院林业研究所重点项目 
摘    要: 【目的】建立一套适合冬枣果实品质评价的方法,探求冬枣果实品质评价中的主要影响因子,并为选择品质优良的冬枣单株(或候选单株)提供依据。【方法】测定20项冬枣优良单株的果实品质指标,采用隶属函数法对各项指标数据进行转化,采用SPSS13.0软件进行因子分析,采用四次方最大旋转法获得因子载荷矩阵,以公因子贡献率为权重,计算样品前6个公因子分值与相应权重之积的累加和,得到综合分值,结合公因子的二维排序图进行优良单株的选择。【结果】转化后的数据经因子分析,提取出6个特征根>1的公因子,累计方差贡献率为80.571%,第1公因子为果实甜脆因子,方差贡献率为26.257%,第2公因子为果重及其它内质因子,方差贡献率为16.734%,第3公因子为果皮质地因子,方差贡献率为14.503%,第4公因子为果实外观因子,方差贡献率为9.091%,第5公因子和第6公因子统称为其它因子;二维排序图揭示了不同优良单株前3个公因子的分布情况,可以为冬枣选优提供参照;20份冬枣优良单株及对照的综合排序为:16、22、14、15、18、5、12、17、4、21、1、19、8、10、13、6、2、7、3、CK和20号。【结论】隶属函数法同时考虑到果实品质指标对评价体系的正、负影响,采用该法转化的数据适于进行因子分析;影响冬枣优良单株果实品质综合评价的关键因子依次是果实甜脆因子、果重及其它内质因子、果皮质地因子、果实外观因子和其它因子;20份优良单株及对照冬枣的综合评价结果为:16、22、15和18号综合品质性状较优,可作为候选单株,结合其它性状进行下一步筛选,其它单株不宜选择。

关 键 词:  冬枣" target="_blank">face="Verdana">冬枣  优良单株  果实品质  因子分析  综合评价
收稿时间:2009-12-23;

Factor Analysis and Synthetical Evaluation of the Fruit Quality of Dongzao (Ziziphus jujuba Mill.'Dongzao') Advanced Selections
MA Qing-hua,LI Yong-hong,LIANG Li-song,LI Qin,WANG Hai,XU Yuan-feng,SUN Yu-bo,WANG Gui-xi.Factor Analysis and Synthetical Evaluation of the Fruit Quality of Dongzao (Ziziphus jujuba Mill.'Dongzao') Advanced Selections[J].Scientia Agricultura Sinica,2010,43(12):2491-2499.
Authors:MA Qing-hua  LI Yong-hong  LIANG Li-song  LI Qin  WANG Hai  XU Yuan-feng  SUN Yu-bo  WANG Gui-xi
Institution:(Research Institute of Forestry, Chinese Academy of Forestry/ Key Laboratory of Tree Breeding and Cultivation, State Forestry Administration)
Abstract:【Objective】 The objective of this study is to establish an applicable synthetical evaluation method of Dongzao fruit quality, represent the primary factors affecting the evaluation system, and provide theoretical evidence in evaluating Dongzao advanced selections. 【Method】 Twenty characteristics of the fruit quality of Dongzao advanced selections were measured first, and the data matrix was converted by the method of subordinate function for statistical analysis. Factor analysis was performed with SPSS 13.0 software and the rotated component matrix was obtained with ‘Quartimax’ method. The synthetical score of the advanced selections was calculated with the following formula , in which Fjn indicated the factors’ score of each sample, and Ej indicated the weight value of each factor. Two figures of scatter plot were described based on the first three factors, respectively.【Result】As a result, 6 factors (eigenvalue>1) were extracted from the converted data matrix with their cumulative contribution approximated to 80.571%. The first factor was fruit sweet and crisp factor, with variance contribution approached to 26.257%. The second factor was fruit weight and other fruit internal quality factor, with variance contribution approached to 16.734%. The third factor was pericarp texture factor, with variance contribution approached to 14.503%. The fourth factor was fruit appearance factor, with variance contribution approached to 9.091%. The other two combined factors were defined as other factors. Scatter plot of the first three factors showed the distribution of fruit quality of all the Dongzao advanced selections and provided referrence to the selection. The arranging order of the synthetical score of the 20 advanced selections including the control was 16, 22, 14, 15, 18, 5, 12, 17, 4, 21, 1, 19, 8, 10, 13, 6, 2, 7, 3, CK and 20. 【Conclusion】 The method of subordinate function could integrate the positive and negative characteristics in the synthetical evaluation, so the matrix converted with this method was suitable for factor analysis. The primary factors affecting the evaluation system of Dongzao advanced selections were fruit sweet and crisp factor, fruit weight and other fruit internal quality factor, pericarp texture factor, fruit appearance factor and other factor. The top four advanced selections in the synthetical evaluation of the fruit quality of 20 Dongzao advanced selections were: No.16, No.22, No.15 and No.18, respectively, which should be regarded as candidates in the further selection, and the others should be eliminated in the group.
Keywords:Ziziphus jujuba Mill  ‘Dongzao’  advanced selections  fruit quality  factor analysis  synthetical evaluation
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