三个蜡梅品种枝条组织结构与抗寒性关系的初步研究

张昕欣1,芦建国2,朱亚丽3

林业与生态科学 ›› 2012, Vol. 27 ›› Issue (4) : 432-434.

PDF(336 KB)
PDF(336 KB)
林业与生态科学 ›› 2012, Vol. 27 ›› Issue (4) : 432-434.

三个蜡梅品种枝条组织结构与抗寒性关系的初步研究

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Study on the shoot tissue structure of Chimonanthusvarietiesin relation to cold resistance

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摘要

以蜡梅为研究对象,对3个常见蜡梅品种的1年生枝条进行了解剖构造的观察和测量,并对其相对电导率进行了测定。结果表明,蜡梅品种枝条的木质部面积比例与抗寒性呈正相关关系,韧皮部面积比例与抗寒性呈负相关关系,可以把木质部和韧皮部的面积比例作为蜡梅抗寒性的形态结构鉴定指标之一。

Abstract

The anatomic structure of the annual branches of three Chimonanthus praecoxvarieties have been studied,and the relative electrolyte leakage has been determined.Theexperimental results shows that the ratio of the thickness of xylem to the whole thickness ofshoot is in positive correlation with the cold hardiness.Conversely,the ratio of the thicknessof cortex was inversely correlative with the cold resistance.The characteristics in shoot tissues could be one of the indicators of cold resistance of Chimonanthus praecox.

关键词

蜡梅 / 枝条 / 组织结构 / 相对电导率 / 抗寒性

Key words

Chimonanthus praecox / shoot / tissue structure / relative electrolyte leakage / cold resistance

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张昕欣1,芦建国2,朱亚丽3. 三个蜡梅品种枝条组织结构与抗寒性关系的初步研究[J]. 林业与生态科学, 2012, 27(4): 432-434
ZHANG Xin-xin1,LU Jian-guo2,ZHU Ya-li. Study on the shoot tissue structure of Chimonanthusvarietiesin relation to cold resistance[J]. Forestry and Ecological Sciences, 2012, 27(4): 432-434
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