摘要
通过比较浙江大盘山不同海拔(A1:550～660m,A2:700～800m,A3:900～990m,A4:1 000～1 015m,A5:1 020～1 100m)七子花(Heptacodium miconioides)叶片色素含量、含水量及比叶面积变化,探讨不同海拔对七子花生长的影响。结果表明,随着海拔的升高,叶绿素含量(包括叶绿素a、叶绿素b、叶绿素a+b)先增加后减少,在A3达最高值;叶绿素a/b比值、类胡萝卜素含量变化呈先低后高,在A3降至最低;比叶面积及叶片含水量,在较高海拔A4、A5都明显下降。七子花通过叶片色素、比叶面积、干重和含水量的变化以适应高海拔环境。
By comparing the changes of pigment content, specific leaf area and water content of seven-son flower （Heptacodium miconioides） leaves at different altitudes （Al： 550～60m, A2： 700～800m, A3： 900～990m, A4：1 000～1 015m, A5：1 020 - 1 100m） in Dapanshan Mountain, the effects of different altitudes on seven-son flower were studied. The results showed that the contents of chlorophyll a, chlorophyll b and chlorophyll a＋b of seven-son flower leaves increased firstly and then decreased and their peak appeared at A3, but the diversification trend of content chlorophyll ago and carotenoid of seven-son flower leaves were reverse, decreased firstly and then increased and their bottom appeared at A3. Specific leaf area and water content of seven-son flower leaves decreased significantly at high altitudes （A4 and A5）. Seven-son flower may be adapted to environmental factors at higher altitudes by the transformation of pigment content, specific leaf area and water content of leaves.
出处
《亚热带植物科学》
2007年第1期1-4,共4页
Subtropical Plant Science
基金
浙江省自然科学基金(399277)
磐安县科技重点项目资助
关键词
七子花
海拔
色素
含水量
比叶面积
浙江大盘山
Heptacodium miconioides
altitude
pigment
water content
specific leaf area
Dapan Mountain, Zhejiang Province
