乐昌含笑种实特征值的数量分析

Quantity Analysis on the Characteristic Value of Michelia chapensis Dandy Fruits and Seeds

针对乐昌含笑从江和黎平种源的种实特征,从聚合果、小骨葖果、种子3个层次的相关变量特征值进行了数量分析,表明2种源的种实变量特征值存在明显差异,黎平种源聚合果细长,小骨葖数量较多,但种粒较小,千粒重较轻,每公斤纯种数量较多。各层次变量特征值之间存在较好的线性相关,相关回归模型都通过了t检验。从江和黎平种源聚合果与纯净种子重量模型相关系数R分别为0.897,0.960,相关系数(R2)分别为0.804,0.921,回归模型方差分析显著性概率<1%,达到极显著水平。

Base on the characteristics of the Michelia chapensis Dandy fruits and seeds from Congjiang and Liping seed sources. Through quantity analysis the correlation variable characteristic values of three levels, aggregate follicle, follicle and seed. The results indicated that there are significant differences between the characteristic values of two seed sources. The aggregate follicle of seed source from Liping is thiner and longer, has larger number of follicle, but the seeds are smaller, 1000-grain weight is lighter, and the number of per one kilogram pure seeds is larger compared with that from chongjiang. The linear correlation between characteristic values of every levels is better, and all modal passed T-test. The R values of model correlation between aggregate follicle and pure seed weight from two seed sources are 0.897, 0.960, and R^2 values are 0.804, 0. 921. The result of regression model variance analysis is found to be significant （p 〈 1% ）.