西南林业大学学报Issue(3)：12-18,7.DOI:10.3969/j.issn.2095-1914.2014.03.003
中国垂乳银杏种质资源及生物学特性分析
The Germ Plasma Resources and Biological Characteristics Analysis of Chinese Chichied Ginkgo
摘要
Abstract
This paper made chichied ginkgo as research material,mainly researched on its characteristics of distribution,growth,and regeneration,besides,the relationship between chichied ginkgo and habitat.The results showed that,there were more than 348 plants of chichied ginkgoes in our country,which mainly distributed in 19 provinces and 236 (67.82% of the total)plants of them were in southwestern China areas,including Guizhou, Yunnan,Sichuan and Chongqing.There were 271 plants were female,which accounted for 80.18%of total.The height of chichied ginkgo was 10-40 m,DBH was 1.0-3.0 m,ages were 100-2 000 years,and the crown di-ameter was around 10 -30 m.The chichi overhangs the tree branch,tree trunk or the base of the tree in cone shape,grows vertical downward and the top of the tree was covered by tree bark.Most of the young chichi ginkgoes were yellow-brown color,and then gradually changed to silver gray,finally became dark gray when they were ma-tured.Chichi could be divided into branch chichi,trunk chichi and base chichi according to its insertion position. The chichi ginkgo could be regenerated in large quantities after it was cut down.However,chichi ginkgo only hap-pens on a certain annual precipitation and sunshine hours.关键词
垂乳银杏/种质资源/分布特点/生物学特性/形态特征Key words
chichi ginkgo/germ plasma resources/characteristics of distribution/biological characteristics/morphological character分类
农业科技引用本文复制引用
刘晓静,付兆军,邢世岩,李际红,吴岐奎,辛红..中国垂乳银杏种质资源及生物学特性分析[J].西南林业大学学报,2014,(3):12-18,7.基金项目
国家科技支撑计划课题（2012BAD21B04）资助；山东省农业良种工程重大课题（201107、201301）资助。 （）
