摘要
该文叙述了杨树、柳树、杏树。
This article clarifies the relationship between cumulative temperature and growth and development of plants,such as poplar,willow,apricot tree,honeysuckle etc.
出处
《河北师范大学学报(自然科学版)》
CAS
1997年第2期209-212,共4页
Journal of Hebei Normal University:Natural Science
关键词
植物
生长
发育
积温
气候
plants
growth and development
cumulative temperature