摘要
对广西香椿人工林主要分布区的11个县进行了实地调查,分析了广西香椿类型的划分、生长特性及叶片功能性状的差异,结果表明:香椿类型根据木材颜色可划分为红木类型和白木类型;不同类型香椿木材颜色与硬度、冠形、树皮颜色及开裂特征、展叶颜色、种子横径、千粒重、复叶长、小叶数量、小叶厚度与大小及平均年生长量存在明显差异;白木类型香椿的年平均生长量、枝叶功能性状相对优于红木类型,其萌芽时间、落叶时间比红木类型的提前7~10d。两种香椿类型的生长特性差异及枝叶功能性状差异主要来源于遗传特性与其环境适应性。
A field survey was conducted on 11 counties in the main distribution area of Toonaplantation in Guangxi.Itstudiedthe differences in the division,growth characteristics and leaf functional traits of Guangxi.The results showed that the type of toona was divided into red wood type and white wood type according to the color of wood.There were significant differences in color and hardness,crown shape,bark color and cracking characteristics,leaf color,seed diameter,1000-grain weight,leaf length,leaflet number,leaflet thickness and size and average annual growth.The average growth time,leaf and leaf functional traits were better than those of red wood type,and the germination time and deciduous time were 7~10days earlier than those of red wood type.The difference of growth characteristics and the difference of leaf and leaf characteristics of two kinds of toona type were mainly from genetic characteristics and environmental adaptability.
出处
《绿色科技》
2017年第13期5-7,共3页
Journal of Green Science and Technology
关键词
广西香椿
类型划分
差异性
Guangxi
Toonasinensis
type division
difference
