油桐69个无性系的典范相关分析与选优研究

Study on the Selection of 69 Asexual Tung Tree Families by Canonical Correlation Analysis

根据来自全国主要油桐产区的６９个油桐优良单株在金华试验点连续７ａ的无性系测定材料，对各个无性系的树体、结实和果实经济成分等性状的１２项因子，进行典范相关分析，研究综合生长因子对综合产油因子的典范相关，并根据各个无性系的典范坐标对无性系进行展点排序，将６９个无性系排为４类，其产油量分别是对照无性系的２３８．６％、１８７．７％、１１２．３％、５６．１％，表明Ⅰ、Ⅱ类无性系均优于对照无性系，特别是样本序号为４４、４８、５４、５６的４个Ⅰ类无性系为高产优良无性系。

This paper,according to the data of 69 asexual tung tree samples from the main tung origin areas all over the country,which are recorded continuously for 7 years in Jinhua experiemental site,completed the analysis of 12 factors including tree body,fruits and their economic value and their contributions by canonical correlation analysis method. The canonical correlations of comprehensive growth factors and comprehensive oil productivity factors are studied. Based on the canonical correlation value from the model of each sample,a sample distribution chart was created and all the samples are clustered as 4 groups.The oil percentages are 238.6% 187.7%,112.3%,56.1% of the control asexual sample respectively. This indicated that group Ⅰ、Ⅱare all better than the control asexual samples. Especially the first group (group Ⅰ) which includes sample No.44,No.48,No.54 and No.56 is the highest productivity category of the asexual family.