Welcome to the 31st IUBS General Assembly and Conference on ...

were different from o<strong>the</strong>rs. They usuallydistributed
densely in <strong>the</strong> open water region <strong>and</strong> <strong>the</strong>ir mean density
was 4.736×10 3 ind•m ‐2 <strong>and</strong> 9.790×10 4 ind•m ‐2
respectively <strong>and</strong> <strong>the</strong> cysts resources of 49.06%
concentrated in <strong>the</strong> mid‐lake of 18.21% areas. There was
a small quantity of polypides <strong>and</strong> cysts in <strong>the</strong> shallow zone
of <strong>the</strong> lake, <strong>and</strong> <strong>the</strong>y were rare in <strong>the</strong> nor<strong>the</strong>rn lakeshore
<strong>and</strong> <strong>the</strong> reception basin of <strong>the</strong> river. Until <strong>the</strong> end of <strong>the</strong>
year, cysts resources of 14.96 <strong>to</strong>ns in <strong>the</strong> lake were
assessed using <strong>the</strong> cysts density isoline map. The natural
rate of increase was 1.404 y ‐1 .
The gross primary productivity, determined by using <strong>the</strong>
‘Black <strong>and</strong> white bottle’ method, was 11.813g (O 2 )/m 2 •d
<strong>and</strong> <strong>the</strong> net primary productivity was 3.324g (O 2 )/m 2 •d
during <strong>the</strong> survey in Oc<strong>to</strong>ber 2010 in <strong>the</strong> salt lake.
Following <strong>the</strong> law of material recycling <strong>and</strong> energy
flowing hierarchy structural <strong>and</strong> net primary productivity,
<strong>the</strong> environmental capacity of <strong>the</strong> cysts in <strong>the</strong> lake was
about 296.39t.
Based on <strong>the</strong> natural rate of increase, cysts resource
extent will approach <strong>the</strong> environmental capacity of <strong>the</strong>
lake at <strong>the</strong> end of 2018, six years from now. At that time,
<strong>the</strong> resources will bring certain economic benefits for
Tibet.
Anti­fertility effect of quinestrol in male
Mongolian gerbils (Merione sunguiculatus)
Wei SHEN <strong>and</strong> Dazhao SHI
China Agricultural University, #2 Yuanmingyuan West Road,
Beijing. Email: shidazhao@cau.edu.cn
In this study, Mongolian gerbils were r<strong>and</strong>omly divided
in<strong>to</strong> multi‐dose treated group (MDT group), one‐dose
treated group (ODT group) <strong>and</strong> control group (CK group)
<strong>to</strong> explore effects of quinestrol on reproductive organs
<strong>and</strong> reproduction. The epididymides, seminal vesicles <strong>and</strong>
semen quality, fertility were assessed at 15, 30, 60 <strong>and</strong> 90
days after.
A potential <strong>and</strong> <strong>the</strong> limiting fac<strong>to</strong>rs for
growing herbaceous peony (Paeonia L.) in
south China
Daike TIAN, 1,2 Chunyu SHEN, 1,3 Zhenlin LIAO 4
<strong>and</strong> Songjun ZENG 1
93
1South China Botanical Garden, CAS, 2 Shanghai Chenshan
Botanical Garden, Shanghai Chenshan Plant Science Research
Center, CAS, Chenshan Botanical Garden 3888 Chenhua Road,
Songjiang Shanghai 201602 China 3 Graduate University of <strong>the</strong>
CAS <strong>and</strong> 4 College of Food Science, South China Agricultural
University. Email: dktian@sibs.ac.cn
Herbaceous peony (Paeonia L.) is one Chinese traditional
flower <strong>and</strong> a popular ornamental throughout <strong>the</strong> world.
It is cultivated mainly in <strong>the</strong> nor<strong>the</strong>rn regions <strong>and</strong> rarely
seen in <strong>the</strong> south, due <strong>to</strong> a limitation of environmental
fac<strong>to</strong>rs. The study on cultivation of <strong>the</strong> herbaceous peony
in <strong>the</strong> south is extremely absent. In this study, 3 cultivars
of herbaceous peonies ‘Da Fugui’, ‘Lian Tai’ <strong>and</strong> ‘Yangfei
Chuyu’ were planted in <strong>the</strong> 7 experimental sites in south
China in order <strong>to</strong> investigate <strong>the</strong>ir adaptability <strong>and</strong>
growth performance. A potential <strong>and</strong> <strong>the</strong> limiting fac<strong>to</strong>rs
for outdoor cultivation of <strong>the</strong> herbaceous peony in <strong>the</strong>
south regions were discussed. For <strong>the</strong> first time,
cultivation regions in China, suitable or not for
herbaceous peony were categorized. From which, <strong>the</strong>
question of “Can <strong>the</strong> herbaceous peony be cultivated in
south China?” was answered. The major conclusions are:
(1) Due <strong>to</strong> a warm climate, cold accumulation usually
could not meet <strong>the</strong> requirement of <strong>the</strong> herbaceous peony
vernalization in Guangdong province. (2) The warm
temperature <strong>and</strong> high humidity in <strong>the</strong> spring of south not
only advanced plant growth, caused bud abortion
<strong>and</strong>significantly reduced flower number, but also made
plants more vulnerable <strong>to</strong> disease. (3) Vernalization <strong>and</strong>
dormancy release of plants are closely related <strong>to</strong> <strong>the</strong>
accumulation of lower temperature. (4) China can be
divided in<strong>to</strong> suitable, cultivable <strong>and</strong> unsuitable regions
for growing herbaceous peony. With <strong>the</strong> exception of a
few higher altitude areas, <strong>the</strong> southward regions starting
from Nanling Ridge <strong>and</strong> places with similar latitudes <strong>and</strong>
climates are not suitable for <strong>the</strong> outdoor cultivation of <strong>the</strong>
herbaceous peony.
Arabidopsis GHMP1 involved in abscisic acid
signal transduction pathways
Qiong ZHAO, DashiYU, Xinhong GUO, Yi CUI,
Hongping CHANG, Congying YUAN, Yu WANG,
Shuai HU <strong>and</strong> Xuanming LIU