Transplant the plantlet with roots to the culture medium WPM with no growth regulator, after 30 days, the mean root number is 5.5, the mean root length is 1.6cm, the longest root is 5.2cm.是什么意思_Transplant the plantlet with roots to the culture medium WPM with no growth regulator, after 30 days, the mean root number is 5.5, the mean root length is 1.6cm, the longest root is 5.2cm.在线翻译_英语_读音_用法_例句