作者机构：
College of Forestry Central South University of Forestry and Technology, Changsha, Hunan 410004, Chi;Botanical Gardens, Central South University of Forestry and Technology, Changsha, Hunan 410004, Chin
会议名称：
The Second International Symposium on the Family Magnoliaceae(第二届国际木兰科植物学术讨论会)
会议时间：
2009-05-05
会议地点：
广州
会议论文集名称：
The Second International Symposium on the Family Magnoliaceae(第二届国际木兰科植物学术讨论会)论文集
摘要：
Magnolia grandiflora L. (southern magnolia) is an evergreen tree native to the southeastern US. It is a popular and important landscape plant and shade tree because of its glossy green leaves and large white fragrant flowers. So far its clonal propagation has mainly relied on grafting and rooting of stem cuttings has rarely been reported although it has been introduced and cultivated for more than one hundred years in China. To meet the increasing of market demands on the clonal reproduction, we carried out the stem cutting propagation in March, June, August and November 2007 from 5—8-year-old plants and treated with various concentrations of IBA and NAA. Magnolia grandiflora could be vegetatively propagated by stem cuttings. Timing played a vital role on the rooting of southern magnolia and the cuttings collected in November produced 70.8％ of rooting. Cuttings collected in June rooted up to 40.6％ and only less than 21.9％ of rooting was observed from the cuttings collected in March and August. Rooting hormones significantly affected the rooting of southern magnolia and the highest rooting rate, 70.8％, was obtained under the treatment of KIBA at 20 g/L. K-IBA concentrations at 10 g/L yielded 60.4％ rooting rate. Both higher (40 g/L) K-IBA concentrations reduced the rooting. The rooting percentage of K-NAA at 5, 10, and 20 g/L were 58.3％, 50％, and 60.4％, respectively. Magnolia grandiflora could be regenerated from stem cuttings and the better time to collect the cutting should be November. Both K-IBA and K-NAA could increase its rooting rates and the recommended concentrations should be 10-20 g/L for K-IBA and 5—20 g/L for KNAA. Researchers and growers should focus on the selection of new southern magnolia clones and propagate them by stem cuttings.
作者机构：
Institute of Zoology, Chinese Academy of Sciences,Beijing, China and;[Haiyan NIE] College of Life Science and Technology, Central South University of Forestry and Technology;[Yanling SONG; Zhigao ZENG; QiongZHANG] Institute of Zoology, Chinese Academy of Sciences,Beijing, China;[Haiyan NIE] Institute of Zoology, Chinese Academy of Sciences,Beijing, China and
会议名称：
3rd International Symposium of Integrative Zoology(第三届整合动物学国际研讨会)
会议时间：
2009-7-8
会议地点：
北京
会议主办单位：
国际动物学会
会议论文集名称：
3rd International Symposium of Integrative Zoology(第三届整合动物学国际研讨会)论文集
摘要：
<正>By using field data on life history traits such as age specific fecundity,age specific mortality,age at first reproduction,brood size and adult expectancy,we analyzed life history patterns and popu
摘要：
Using reduced-basis method (RBM), design parameters are needed to be separated from the linear elastic operators (stiffness matrix, mass matrix, and loads), which is time-consuming. So, an improved reduced-basis method -inversion reduced-basis method (INVRBM) is introduced to calculate the lower order natural frequencies and mode shapes of structure. In this method, the computing process of design parameters separated from the linear elastic operators is simplified. At the same time, results from INVRBM are accurate, and the error estimation is done. In this paper, a truck frame is taken as an example, frequencies and mode shapes from INVRBM are obtained, and error bounds are also got. Comparing with results from the finite element method, INVRBM can obtain accurate results very fast, can also estimate error bound efficiently.
作者机构：
Institute of Rheological Mechanics and Material Engineering,Central South University of Forestry and;Research Institute of Forestry of Ganzhou City,Ganzhou 341000,P.R.China
会议名称：
The 3rd International Conference on Bioinformatics and Biomedical Engineering(iCBBE 2009)(第三届生物信息与生物医学工程国际会议)
会议时间：
2009-06-11
会议地点：
北京
会议论文集名称：
The 3rd International Conference on Bioinformatics and Biomedical Engineering(iCBBE 2009)(第三届生物信息与生物医学工程国际会议)论文集
摘要：
The production of noble Eucalyptus oil from Eucalyptus leaves brings a mass of extracting wastewater pollutive to water environment. In order to better utilize and recover the productive wastewater from the Eucalyptus oil, we used pyrolysis-GC/MS to analyze the possible top value-added components of benzene/ethanol extractives of leaves of two Eucalyptus cultivars, i.e. E. dunnii and E. grandis. Relative content of each component was determined by area normalization. 22 compounds representing 92.12％ of the benzene/ethanol extractive of E. dunnii leaves were identified, and the main constituents were 5-(acetylaminomethyl)-4-amino-2-methyl-(15.40％), hexadecanoic acid (10.25％), benzaldehyde,4-hydroxy-(8.64％), xylitol (7.57％), cyclopentanol (7.10％), 2-propenoic acid,3-(4-hydroxyphenyl)-(4.41％), eucalyptol (1.38％), etc. 28 compounds representing 98.41％ of the benzene/ethanol extractive of E. grandis leaves were also identified, and the main constituents were ethanol,2-butoxy-(21.70％), benzene,methyl(1-methylethyl)-(15.61％), 17-octadecenal (15.25％), 1-hexacosanal (9.45％), 1-eicosanol (6.92％), cyclotetracosane (6.67％),.alpha.-phellandrene (3.75％), etc. The results of function analyses showed that the benzene/ethanol extractives of leaves of both E. dunnii and E. grandis are abundant in materials of noble natural medicines, and also contains constituents which can be developed into top value-added materials of cosmetic, biofuel and industrial solvent.
作者机构：
School of Materials Science and Engineering Central South University of Forestry and Technology City;Research Institute for Tropical Forestry CAF Guangzhou,510520,China
会议名称：
The 3rd International Conference on Bioinformatics and Biomedical Engineering(iCBBE 2009)(第三届生物信息与生物医学工程国际会议)
会议时间：
2009-06-11
会议地点：
北京
会议论文集名称：
The 3rd International Conference on Bioinformatics and Biomedical Engineering(iCBBE 2009)(第三届生物信息与生物医学工程国际会议)论文集
摘要：
As one of the most expensive wood trees, Ormosia henryi has been planted more than 1000 mu in South China now. A mass of Ormosia henryi leaves was naturally abandoned and degradable so that the resources were wasted. Therefore, in order to overcome the negative effects, Py-GC/MS was used to analyze the extractives of Ormosia henryi leaves. Relative content of each component was determined by area normalization. The benzene/ethanol extractives contain 57 compounds namely thiophene, 2,5-dibutyl-, tetradecanal, rishitin, pyrrole, pyridine, 5-hexyl-2-methyl-, pyrene, hexadecahydro-, pmenth-8(10)-en-9-ol, cis-, pentadecane, oleic acid, octane, octadecanoic acid, nonanal, naphthalene, decahydro-, naphthalene, 1,2,3,4,4a,5,6,8a-octahydro-4a,8-dimethyl-2-(1-methylethenyl)-, hexanoic acid, 3-hexenyl ester, (z)-, hexadecanoic acid, methyl ester, hexadecanoic acid, 2-hydroxy-1-(hydroxymethyl)ethyl ester, hexadecanoic acid, heneicosane, glycerin, and so on. So the rare medicinal materials and rare spice is rich in the extractives of Ormosia henryi leaves. The byproducts can be used as not only top grade cosmetics and skin care, but also bioenergy.
