Primary study on Shunde Gingko in Guangdong

The phenological characters of Gingko in Shunde City of Guangdong Province were observed．An old Gingko tree over 150 years in Qinghui Garden of Shunde City is found to be able to grow，bloom and bear in the place of lower 23°N at an average temperature over 22℃ ．Its phenology including sprouting date．bloom date and seed ripen date is later than that in other area of Guangdong Province．The Gingko tree also shows some specific morphological characters in its seed and biochem ical specifity in its POD ，indicating that this Gingko tree may belong to a new variety.