attributes.tag: cultivar
attributes.value: missing
attributes.tag: age
attributes.value: Four-year-old
attributes.tag: geo_loc_name
attributes.value: China: Hebei, Tangshan
attributes.tag: tissue
attributes.value: Samples were collected by scraping regenerating tissues from the entire trunk surface in the morning (between 10:00 and 11:00 am) on the 7, 10, 12, 16, 18 and 21 days after girdling
attributes.tag: BioSampleModel
attributes.value: Plant