2.4. Data analysis Analysis of variance (ANOVA) was performed with the SPSS19.0 for Windows software package (SPSS, Chicago, USA), and mean comparisons were done using the least significant difference (LSD) test at P < 0.05.
2.4. Data analysisAnalysis of variance (ANOVA) was performed with the SPSS19.0for Windows software package (SPSS, Chicago, USA), and meancomparisons were done using the least significant difference (LSD)test at P < 0.05.