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《楚辞》植物简介：飞蓬（蓬）Erigeron acer （图）
《楚辞》 植物简介 飞蓬 Erigeron acer
2023/5/12
形态特征：二年生草本，茎直立，多单生，高5-60厘米，绿色或紫色，被较密而开展的硬长毛。基部叶密集，倒披针形，顶端钝或尖，全缘或极少具1至数个小尖齿，中上部叶披针形，急尖。头状花序多数，在茎枝端排列成圆锥花序，总苞半球形，苞片3层，雌花的外轮小花舌状，浅紫红色，内层细管状，无色，两性花管状，黄色。瘦果长圆披针形，长约1.8毫米，宽0.4毫米。花果期7-10月。
《楚辞》植物简介：色木槭（枫）Acer pictum （图）
《楚辞》 植物简介 色木槭 Acer pictum
2023/5/10
形态特征：落叶乔木，高达15-20米，树皮粗糙，常纵裂，灰色，稀深灰色或灰褐色，小枝灰色。冬芽近于球形，叶纸质，掌状分裂，裂片较宽，先端尾状锐尖，叶基常心形。顶生圆锥状伞房花序，萼片5片，黄绿色，椭圆形花瓣5片，淡白色；花药黄色。翅果嫩时紫绿色，成熟时淡黄色，小坚果压扁状。花期5月，果9月成熟，秋叶变亮黄色。
Effect of gibberellic acid on germination capacity and emergence rate of Sycamore maple (Acer pseudoplatanus L.) seeds
sycamore maple seed quality vitality stratification pre-sowing treatment seed humidity
2015/8/27
Seedlots of sycamore maple (Acer pseudoplatanus L.) originating from three different provenance regions were collected in autumn 2012. The seed quality, namely vitality and germination rate, was asses...
ACER has built a strong reputation as a provider of
reliable support and expertise to education policy
makers and professional practitioners since it was
established in 1930.
As a not-for-profi...
ACER is continuing to work on a range of priorities
including: building the breadth, depth and reach of our
research; expanding professional resources; enhancing
our international presence; buil...
The Australian Council for Educational Research
(ACER) is an independent not-for-profit
organisation. ACER’s mission is to create and
promote research-based knowledge, products
and services th...
Our mission, improving learning, is clear.
Our goals, to support the engagement of
every learner, every learning professional,
every learning institution and our learning
society, is also clea...
The Australian Council for Educational Research (ACER)
is one of the world’s leading educational research centres
with a strong reputation as a provider of reliable support
and expertise to educ...
The Australian Council for Educational Research (ACER) is
an independent, not-for-profit organisation which provides
state-of-the-art educational research, products and services.
Established in 1...
The Australian Council for Educational Research
(ACER) is an independent, not-for-profit
organisation which provides state-of-the-art
educational research, products and services.
Established in...
The Australian Council for Educational Research (ACER) is an independent, not-for-profit
organisation which provides state-of-the-art educational research, products and services.
Established in 19...
The Australian Council for Educational Research (ACER) is an independent, not-for-profit
organisation which provides state-of-the-art educational research, products and services.
Established in 193...
Marks, G., Hillman, K. & Beavis,A. (2003) Dynamics of the
Youth Labour Market: the 1975 cohort, 1996-2000. LSAY
Research Report No 34. Melbourne:Australian Council for
Educational Research.
Marks,...
Ainley, J. & Johnson, T. (2004). Course Experience Questionnaire
2003. Melbourne: Graduate Careers Council of Australia.
Ainley, J. & Johnson, T. (2004). Postgraduate Research
Experience Question...
During 2002–2003, ACER conducted a core
research program funded by all states and
territories and the commonwealth. The core-funded
program was established in consultation with
the providers of t...