In this study,the growth and the flower yields and quality were detected among the TAV-free and the control seedlings.The results showed that the plant height,crown width,branch number,chlorophyll contents,flower yields and effective medicinal ingredients in the TAV-free strains were higher than those in the controls.YD5 J6 was the best among the TAV-free strains as indicated by the flower yields,contents of chlorogenic acid,luteoloside,3,5-dicaffeoylquinic acid increasing by 25.17%,2.784%,19.374% and 25.66...