In present study, effects of foliar GA3 treatments on phenolic compounds, organic acids, vitamin C content and agro-morphological characteristics of 5 strawberry cultivars were investigated. Principle component analysis was also performed to assess the variations in and relationships between bioactive compounds contents of cultivars treated with GA₃. Although they varied depending on cultivars, the highest organic acid contents were generally determined in fruits treated with 50 ppm GA3. Both GA₃ treatments increased vitamin C contents in ‘Albion’ and ‘Aromas’ but decreased in ‘Seascape’ fruits. GA treatment caused significant change in some phenolic compounds content. While 100 ppm GA₃ treatment significantly increased catechin content of ‘Albion’ and ‘Aromas’, it decreased catechin content of ‘Seascape’ fruits. Results of PCA analysis showed that ‘Sweet Ann’ differ from other cultivars by poor ascorbic and fumaric acid content. ‘Albion’ and ‘Honeoye’ differ from other cultivars by high p-coumaric and low ellagic acid contents.

本研究研究了叶面GA3处理对5个草莓品种的酚类化合物，有机酸，维生素C含量和农业形态特征的影响。还进行了主成分分析，以评估用GA ₃处理的品种中生物活性化合物含量的变化及其之间的关系。尽管它们因品种而异，但通常在用50 ppm GA3处理的水果中确定了最高的有机酸含量。两种GA ₃处理均增加了'Albion'和'Aromas'中的维生素C含量，但'Seascape'水果中的维生素C含量降低。GA处理引起某些酚类化合物含量的显着变化。而100 ppm GA ₃处理显着增加了'Albion'和'Aromas'的儿茶素含量，降低了'Seascape'水果的儿茶素含量。PCA分析的结果表明，'Sweet Ann'与其他品种的区别在于抗坏血酸和富马酸含量低。'Albion'和'Honeoye'与其他品种的不同之处在于高的对香豆酸和较低的鞣花酸含量。