全 文 ：Journal of Forestry Research, 15 (1): 83-85 (2004) 83


A study on the shade tolerance of Muehlewbeckia complera

YUE Hua, GUAN Xue-rui, JIANG Bin-bin
Northeast Forestry University, Harbin 150040, P. R. China

Abstract： Muehlewbeckia complera was introduced to China in 2002 as indoor-hanging ornamental foliage plant. The ex-
periment of the shade tolerance for this species was carried out in different light intensities (0.14-946.00 ìmol·m-2·s-1). After
40 days in experimental areas, leaf photosynthentic characteristics indexes of M. complera in different photosynthesis active
radiation (PAR) were measured with LI-COR6400 apparatus, such as the light compensation point, light saturation point, and
maximum net photosynthesis rate, at the same time, the increments of total leaf area and leaf amount were measured. The re-
sults showed that the optimum light intensity range for M. complera was from 9.26 ìmol·m-2·s-1 to 569.00 ìmol·m-2·s-1
(463-28150 lx, relative humidity (RH) for 46-60%, temperature at 16-22 °C). Under this condition, leaf photosynthetic efficiency
was tiptop. Although M. complera belonged to the moderate sun-adaptation plant species, the plant growth was inhibited when
PAR increased to the level of 569.000 ìmol·m-2·s-1 or above. M. complera could sprout new leaves in photosynthesis active
radiation of 0.16-19.22 ìmol–m-2–s-1 (8-961 lx), or 10 ìmol·m-2·s-1 for above 6 h.
Keywords: Muehlewbeckia complera; Shade tolerance; Cultivation; Photosynthesis
CLC number: S602.1 Document code: A Article ID: 1007-662X(2004)01-0083-03



Introduction

Muehlewbeckia complera is indoor-hanging ornamental
foliage plant and has highly admired value. Its blade profile
is ellipse with brightness and branches are dark brown and
similar to the elegant hair. It was introduced to China in
2002 but no quantitative data was offered by the dealer. In
practice, under relatively low irradiance or strong light,
leaves of M. complera turned into yellow and branch had
excessive vegetative growth, being easily infected by dis-
eases, as a result, its admired value was declined. In all
literatures about Muehlewbeckia complera, there were few
concretely quantitative data about its favorite light intensity.
In different rooms with different directions, the light dis-
tribution and hours of sunshine were different. Even at the
different locations in the same room, the light distribution
and time of sunshine were also different. In the rooms fac-
ing to the south, east, or west, the three regions with dif-
ferent light intensity could be plotted out: 10000-80000 lx
(suitable for ornamental foliage plant of favorite sunshine),
5000 lx (suitable for ornamental foliage plant of favorite
partial shade), less than 5000 lx (suitable for ornamental
foliage plant of favorite shade), (Ye 2001). In the room of
exposing to the north, there is not a region of light intensity
for 10000-80000 lx. According to the measured diurnal
variation of illumination in different locations, the authors
selected three representative regions to culture M. com-
plera. Based on the photosynthetic characters of M. com-

Foundation item: This study was supported by the Research Foundation of
Northeast Forestry University.
Biography : YUE Hua (1962-), female, Associate professor in Northeast
Forestry University, Harbin 150040, P. R. China.
Received date: 2004-01-12
Responsible editor: Zhu Hong
plera in different illuminated regions, the light intensities at
different distances from windows were measured, and the
favorite light conditions of the plant were determined, with
an aim provide a scientific foundation for itsindoor cultiva-
tion.

Materials and methods

Materials and environmental conditions
The experiment was conducted with stem-planting seed-
ling of introduced Muehlewbeckia complera in April and
May, 2003. Five representative experimental areas (area A,
B, C, D and E) were selected in two rooms at the different
distances from southing, northing, and easting windows on
the 5th floor of a building in Harbin. Area A, B and C were
set in first room (windows southing), area D and E were set
in second room (northing and easting windows, respec-
tively). Area A, B and C were at the distances of 0.7 m, 3.0
m and 5.0 m from southing windows, respectively. Area D
was at the distances of 2.7 m from a northing window and
2.8 m from an easting window. Area E was at the distance
of 0.3 m from a northing window. The diurnal changes of
light intensity, temperature, and humility of the 5 areas in
two rooms were recorded.

Drawing of photosynthesis-light response curves
After 40 days in experimental areas, the photosynthesis
indexes were measured by using LI-COR-6400 under dif-
ferent light intensities (produced by artificial light source),
(Bai et al. 1999). The measurement was repeated twice.
The authors acquired the light compensation point, light
saturation point, and maximum net photosynthesis rate
through the methods of counting light compensation point,
light saturation point photosynthesis and the method of
YUE Hua et al. 84

Journal of Forestry Research, 15 (1): 83-85 (2004) 85







Chinese Abstracts iv
树种和 6 种灌木树种对大气重金属污染物铅、镉、铬、汞的
吸收能力。结果表明：绿化树种对铅、镉、铬、汞具有一定
的吸收能力，并依污染物和树种的不同而有明显差异；根据
不同树种对不同大气重金属污染物吸收量的差异将其各分为
三级，其中吸铅量高的树种有白桦、垂枝榆和京桃等；吸镉
量高的树种有小黑杨、钻天杨、银中杨和旱柳等；吸铬量高
的树种有黄菠萝、紫丁香、旱柳、黑皮油松、红皮云杉、京
桃、榆叶梅和糖槭等；吸汞量高的树种有榆叶梅、蒙古栎、
旱柳、接骨木、野梨和华北绣线菊等。本研究为在不同大气
重金属污染条件下选择不同绿化树种提供了科学依据。表 4
参 11。
关键词：绿化树种；大气重金属污染物(铅；镉；铬；汞)；吸
收能力；
CLC number: S731.2; X501 Document code: A
Article ID: 1007-662X(2004)01-0073-04

04-01-015
不同改性剂对木塑复合材料性能的影响研究/许民，才智（东
北林业大学材料科学与工程学院，哈尔滨和兴路 26 号，
150040 ） //Journal of Forestry Research.-2004, 15(1):
77-79.
采用木材纤维分别与 PE、PS、ABS、SAN四种塑料制
成木塑复合材料，根据物理力学性能的检测，研究了不同改
性剂对木塑复合材料性能的影响。结果表明：加入改性剂能
改善木材纤维与所用塑料交接性能，改性剂可以提高复合材
料的力学强度；不同的改性剂对复合材料的性能产生不同的
影响，异氰酸酯胶改性效果比较好。木塑复合材料既保持了
木质材料原来的优良品质，又具有塑料的一些特性，其防水
性、尺寸稳定性、力学强度等指标均有较大改善。图 5参 6。
关键词：木纤维；热塑性高分子聚合物；木塑复合材料；改
性剂；力学性能
CLC number: TB332 Document code: A
Article ID: 1007-662X(2004)01-0077-03

04-01-016
杉木精油的制备及其成分分析的研究/黄洛华，秦特夫（中国
林业科学研究院木材工业研究所，北京市 100091），大平辰
郎（日本森林综合研究所, 日本国 305，茨城县筑波市）
//Journal of Forestry Research.-2004, 15(1): 80-82.
本文研究了杉木精油的提取方法及其化学成分。采用了
四种蒸馏装置来提取杉木精油。结果表明：大部分精油在蒸
馏的 2小时内被提取出；装置 3具有较高的提取效率；杉木
精油的主要化学组成为松柏醇；精油获得率随蒸馏时间段的
增加而逐渐减小；采用CO2-超临界流体萃取法提取杉木精油,
压力为 100kg/cm2和温度为 40°C时为其最佳条件。图 1表 4
参 10。
关键词：杉木；精油；松柏醇；超临界流体萃取法
CLC number: S781.4 Document code: A
Article ID:1007-662X(2004)01-0080-03

04-01-017
千叶兰耐荫性的研究/岳桦，关学瑞，姜斌斌（东北林业大学，
哈尔滨 150040，中国）//Journal of Forestry Research.-2004,
15(1): 83-85.
千叶兰（Muehlewbeckia complera）是 2002年从国外
引入的一种室内垂吊观叶花卉。本文对千叶兰耐荫性做了实
验研究。在不同的光照强度（0.14-946.00 ìmol–m-2–s-1）
条件下设置五个试验区域。在试验区培养 40天后，用 LI-COR
6400测定其功能叶的光合特性，绘制光-光合作用曲线，计
算光补偿点、光饱和点及最大净光合速率，测定其叶面积与
叶片数的生长量。实验结果表明：千叶兰生长在光照强度为
9.26-569.00 ìmol–m-2–s-1（463-28150 lx，16-22℃，RH
46%-60%）时较适宜，光合效率最高，生长最佳。千叶兰的
光照习性属于较喜光，但忌光照强度为 569.00
ìmol–m-2–s-1以上的强光直射。虽然千叶兰具有耐半荫性，
但在光照强度为 0.16-19.22 ìmol–m-2–s-1（8-961 lx）的条
件下（晴天每天光照强度达 10 ìmol–m-2–s-1，光照时间为
6小时以上），才能够生长新叶。表 4参 8。
关键词：千叶兰（Muehlewbeckia complera）；耐荫性；栽
培；光合作用
CLC number: S602.1 Document code: A
Article ID: 1007-662X(2004)01-0083-03