Volatile composition (relative %; mean ± standard error) of cv.

In the same line, mean values with different letters differ significantly (P (1)P > 0.05, be means of Levene test. P values are those from one-way ANOVA analysis. Means were compared by Tukey’s test, since equal variances could be assumed(2)P P values are those from one-way Welch ANOVA analysis. Means were compared by Dunnett T3’s test, since equal variances could not be assumedCobrançosa olives at different harvest times.同一行内带有不同字母的平均值存在显著差异。具体检验规则如下：① 经莱文检验（Levene test）验证方差齐性成立（P>0.05）时，P值来源于单因素方差分析（one-way ANOVA），因可假定方差相等，故采用图基检验（Tukey’s test）进行均值比较；② 当无法假定方差相等时，P值来源于单因素韦尔奇方差分析（one-way Welch ANOVA），并采用邓尼特T3检验（Dunnett T3’s test）进行均值比较。本研究对象为不同采收期的科布拉桑萨橄榄（Cobrançosa olives）。