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| 1 | The ploidy effects in plant gene expression: Progress, problems and prospects显示文摘Polyploidy and haploid are widely employed in the studies of genetics and evolution, and great pro-gress has been made in these fields, inspiring the enthusiasm of scientists to explore the ploidy effects in gene expression. In this paper, we review the gene expression and its regulation in polyploids, es-pecially in autopolyploids. We summarize some limitations in previous reports on polyploidy gene ex-pression and its regulation, especially the limitations in the research materials. We propose an idea to create homologous ploidy series with twin-seedlings and to employ high-throughput techniques to investigate the polyploidy transcriptome and its regulation. | PENG Hai1, ZHANG Jing1 & WU XianJun2,3 1 Laboratory of Germplasm and Genetics, College of Life Science, Jianghan University, Wuhan 430056, China 2 Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China 3 Key Laboratory of Southwest Crop Genetic Resources and Improvement of the Ministry of Education, Sichuan Agricultural Univer-sity, Ya‘an 620514, China | 2008 | Science China(Life Sciences)2008，51，4： | 8 |
| 2 | Moving collocation methods for time fractional differential equations and simulation of blowup显示文摘A moving collocation method is proposed and implemented to solve time fractional differential equations. The method is derived by writing the fractional differential equation into a form of time difference equation. The method is stable and has a third-order convergence in space and first-order convergence in time for either linear or nonlinear equations. In addition, the method is used to simulate the blowup in the nonlinear equations. | MA JingTang1 & JIANG YingJun2 1School of Economic Mathematics, Southwestern University of Finance and Economics, Chengdu 611130, China 2Department of Mathematics and Scientific Computing, Changsha University of Science and Technology, Changsha 410076, China | 2011 | Science China Mathematics2011，54，3： | 7 |
| 3 | SAR-3——a resource of diploid true breeding hybrid rice显示文摘In 1988, we found strain 9003 from composite hybridization of iad/ca and japonica. 9003 possesses characteristics of twin seedlings with frequency of 15-20% of the investigated popu-lation. The highest frequency was 45. 68%.Afterwards, we discovered that some twin seedlings had variabilities in chromosome set. | ZHOU Kaida, WANG Xudong, Wu Xianjun, YAN Zhibing. and ZHOU Xaohe, Rice Res Inst of Sichuan AgriUniv , Wenjiangg 611130, China | 1997 | Chinese Rice Research Newsletter1997，5，4： | 6 |
| 4 | The Evaluation on Ecological Agricultural Development in Sichuan Province on the Basis of Grey Relational Analysis显示文摘By using the grey relational model,14 indexes of ecological agricultural development in Sichuan Province from 1997 to 2008 are analyzed.According to the relational degree results,the ecological agricultural development in 12 years can be divided into three stages:the first stage is from 1997 to 2000,with the shape of inverted U;the second stage is from 2001 to 2004,belonging to transition stage with slow growth rate;the third stage is from 2005 to 2008,belonging to the stage of rapid growth.It draws conclusion that per capita grain yield is an important element for evaluating ecological agricultural construction.Besides,reducing the energy consumption of per unit production,improving labor productivity and increasing agricultural science and technology application and input on agricultural infrastructure construction are the engine for developing Sichuan ecological agriculture. | JIANG Ling,QI Yan-bin School of Economics and Management,Sichuan Agricultural University,Chengdu 611130,China | 2011 | Asian Agricultural Research2011，3，5： | 4 |
| 5 | The microarray analysis for gene expression in haploids and diploids derived from twin-seedling rice显示文摘In this study, microarray technique was employed to analyze the gene expression at the RNA level between haploids and corresponding diploids derived from a rice twin-seedling line SARII-628. Differ- ent degrees of expression variations were observed in the plant after haploidization. The main results are as follows: (1) after haploidization, the ratio of the sensitive loci was 2.47% of the total loci designed on chip. Those loci were randomly distributed on the 12 pairs of rice chromosomes and the activated loci were more than the silenced ones. (2) Gene clusters on chromosome were observed for 33 se- quences. (3) GoPipe function classification for 575 sensitive loci revealed an involvement in the bio- logical process, cell component and molecular function. (4) RT-PCR generally validated the result from microarray with a coincidence rate of 83.78%. And for the randomly-selected activated or silenced loci in chip analysis, the coincidence rate was up to 91.86%. | ZHANG HongYu1,3, PENG Hai2*, LI PingChuan1, DENG QiMing1, XU PeiZhou1, LI Yun4, WANG XuDong1 & WU XianJun1,3 1 Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China 2 Laboratory of Germplasm and Genetics, College of Life Science, Jianghan University, Wuhan 430056, China 3 Key Laboratory of Southwest Crop Genetic Resources and Improvement, Ministry of Education, Sichuan Agricultural University, Ya′an 620514, China 4 Crop Research Institute of Agricultural and Forestal Science Academy of Chengdu, Chengdu 611130, China | 2008 | Science China(Life Sciences)2008，51，6： | 4 |
| 6 | BATE curve in assessment of clinical utility of predictive biomarkers显示文摘In this paper,for time-to-event data,we propose a new statistical framework for casual inference in evaluating clinical utility of predictive biomarkers and in selecting an optimal treatment for a particular patient.This new casual framework is based on a new concept,called Biomarker Adjusted Treatment Effect (BATE) curve.The BATE curve can be used for assessing clinical utility of a predictive biomarker,for designing a subsequent confirmation trial,and for guiding clinical practice.We then propose semi-parametric methods for estimating the BATE curves of biomarkers and establish asymptotic results of the proposed estimators for the BATE curves.We also conduct extensive simulation studies to evaluate finite-sample properties of the proposed estimation methods.Finally,we illustrate the application of the proposed method in a real-world data set. | ZHOU XiaoHua 1,2,3,& MA YunBei 4,5 1 Northwest HSR&D Center of Excellence,VA Puget Sound Health Care System,Seattle,WA 98198,USA 2 Department of Biostatistics,University of Washington,Seattle,WA 98198,USA 3 Beijing International Center for Mathematical Research,Peking University,Beijing 100871,China 4 Department of Operations Research and Financial Engineering,Princeton University,Princeton,NJ 08540,USA 5 School of Statisitcs,Southwest University of Finance and Economics,Chengdu 611130,China | 2012 | Science China Mathematics2012，55，8： | 2 |
| 7 | Performance Evaluation of China's Agricultural Listed Companies Based on DEA Model显示文摘In order to evaluate the performance of China's agricultural listed companies,we analyze the overall efficiency,pure technical efficiency and scale efficiency of China's agricultural listed companies on the basis of input-output data concerning 34 agricultural listed companies,using BCC model in data envelopment analysis ( DEA) model. Then we analyze input-output redundancy situation using the slack variable derived from the model. The results show that the overall efficiency of China's agricultural listed companies is good,and the gap in efficiency between sub-industries is small; there is significant difference in performance between listed companies engaged in the same sub-industry,and the reason for invalid DEA in companies within the industry is complex; total assets and asset-liability ratio are high,and the effective output is not fully realized. Finally corresponding recommendations are put forward for promoting the performance of agricultural listed companies as follows: strengthening brand awareness; promoting the level of production technology; adjusting the input structure; transforming the agricultural growth mode. | LUO Hua-wei ,ZHANG Wei School of Economics and Management,Sichuan Agricultural University,Chengdu 611130,China | 2012 | Asian Agricultural Research2012，4，5： | 2 |
| 8 | Identification and Gene Mapping of Completely Dominant Earliness in Rice显示文摘The completely dominant earliness was identified in a genic male-sterile and early maturing indica line 6442S-7. F1 progenies from 6442S-7 crossed with thirteen various types of medium- or latematuring varieties, shared the same heading date as 6442S-7. The segregation of heading date in the F2 and B1F1 populations showed that the earliness of 6442S-7 is mainly controlled by two dominant major genes. The local linkage map of one dominant earliness gene harbored in 6442S-7 was constructed with F2 population and four kinds of molecular marker techniques. The results showed that the gene was located between a RFLPmarker C515 and a RAPD marker OPI 11. 557 on the terminal region of short arm of rice chromosome 3,10.9cM and 1.5 cM from C515 and OPI11. 557, respectively. The genetic distances from the target gene to twoSSR markers, RM22 and RM231, and one AFLP marker, PT671, were 3.0, 6.7 and 12.4 cM, respectively. This gene, being identified and mapped first, is designated tentatively as Ef-cd (t). As a new genetic resource of completely dominant earliness, 6442S-7 has splendid future in rice improvement. | DENG Xiao-jian, ZHOU Kai-da, LI Ren-duan, CHUN Ze LI Ping, WANG Wen-ming, ZHAI Wen-xue and ZHU Li-huang( Rice Research Institute, Sichuan Agricultural University, Wenjiang 611130 Institute of Genetics, Chinese Academy of Sciences, Beijing 100101) | 2002 | Agricultural Sciences in China2002，1，1： | 2 |
| 9 | Influencing Factors of Householders' Transferring out Cultivated Land under the Background of Urban and Rural Integration显示文摘Factors influencing householders' transferring out the cultivated land are analyzed from the aspects of farmers' individual characteristics,farmers' family features,resources endowment features and external environmental features.And based on the results of the questionnaire survey of 252 households in Chengdu City,the effect of each factor is analyzed through building the dual preference model of Logistic.The result shows that 65.87% of householders have transferred out their cultivated land and proportion of non-agricultural incomes,stability of land ownership,per capita area of cultivated farmland,comminution of cultivated farmland,transferring price and distance to town have relatively significant effect on farmers' transferring out cultivated land.Non-agricultural industries should be developed with great efforts and reasonable transferring prices of cultivated land fixed.Law on Land Contract in Rural Area is to be practically implemented and the steady peasants' vocational skill training system and rural social security system established.Moreover,investment in rural infrastructure should be strengthened to improve the transportation conditions in rural area and promote the market development of cultivated land transference effectively. | ZHANG Rui,XIAO Hong-an,ZHANG Wen-xiu School of Economics and Management,Sichuan Agricultural University,Chengdu 611130,China | 2011 | Asian Agricultural Research2011，3，3： | 2 |
| 10 | On the direct path problem of s-elementary frame wavelets显示文摘In this paper, we discuss the path-connectivity between two s-elementary normalized tight frame wavelets via the so-called direct paths. We show that the existence of such a direct path is equivalent to the non-existence of an atom of a σ-algebra defined over the defining sets of the corresponding frame wavelets, using a mapping defined by the natural translation and dilation operations between the sets. In particular, this gives an equivalent condition for the existence of a direct path between two s-elementary wavelets. | DAI XingDe 1 , DIAO YuanAn 1 & GUO XunXiang 2,1 Department of Mathematics and Statistics, University of North Carolina at Charlotte, Charlotte, NC 28223, USA 2 Department of Mathematics, Southwestern University of Finance and Economics, Chengdu 611130, China | 2010 | Science China Mathematics2010，53，12： | 1 |
| 11 | Issues concerning Migrant Workers' Participation in the New Rural Cooperative Medical System and Countermeasures——Based on the Survey in Wenjiang District and Jintang County, Chengdu City显示文摘We conduct questionnaire survey of migrant workers in Wenjiang District and Jintang County of Chengdu City,respectively,using the method of key-point investigation and the sampling survey. We describe the status quo of the sample migrant workers' participation in the New Rural Cooperative Medical System,analyze the issues concerning migrant workers' participation in the New Rural Cooperative Medical System,and put forward the countermeasures and recommendations as follows: using many types of medical insurance; establishing universal reimbursement points in strange land and premium-paying system for migrant workers; making the proportion of reimbursement open and transparent; establishing and improving medicare security system for migrant workers. | GUO Ming-liang ,LI Yao,XU Hui-zhen College of Economics and Management,Sichuan Agricultural University,Chengdu 611130,China | 2012 | Asian Agricultural Research2012，4，5： | 1 |
| 12 | Construction of Urban Mountain Forest Landscapes in Low Hilly Areas——A Case Study of Phoenix Mountain Forest Park in Santai County,Sichuan Province显示文摘Urban mountain forest is an important part of urban landscapes in low hilly areas,and proper utilization of mountains in building forest landscapes effectively improves images of the city and quality of the urban ecological environment.On the basis of analyzing urban mountain features in the low hilly areas,it was proposed that forest landscapes should be constructed from three perspectives of optimizing landscape layout,spatial differentiation,and simulating the nature.Fenghuang Mountain Urban Forest Park in Santai County of Sichuan Province was taken for example to explore the construction of urban mountain forest landscapes.Design concepts of the park were elaborated,and improvement techniques for the mountain forest landscapes were given by investigating present vegetation resources and the overall planning layout. | LIU Weidong,CHEN Qibing,WANG Jia(College of Landscape Architecture,Sichuan Agricultural University,Chengdu,Sichuan 611130,China) | 2012 | Journal of Landscape Research2012，4，7： | 1 |
| 13 | Biological control of rice disease and insect by chitinase-producing bacterium X2-23显示文摘Enriched by the medium containing chitin and cell wall of Rhizoctonia solani AG-1, a bacterium X2-23 with higher chitinase activity was isolated from 166 chitinase-producing bacteria. It could distinctly inhibit the fungi growth of some plant pathogens such as R. solani, Magnaporth griesa, Fusariwn moniliforme, F. geamin-eanun, Scleretimia sclerotiorum, | CHEN Hong LI Ping GUI Yao WANG Lingxia MA Bingtian ZHENG Aiping, Sichuan Agri Biotechnology Engineering Research Center,Rice Res Inst,Sichuan Agri Univ,Wenjiang 611130,China | 2002 | Chinese Rice Research Newsletter2002，10，3： | 1 |
| 14 | Construction of Performance Evaluation Index System for Enterprises Implementing Green Food Certification Based on BSC显示文摘According to the investigation results of 70 green food enterprises in Sichuan Province,the strategic targets of enterprises implementing green food certification are discussed by borrowing ideas from the Balanced Score Card.Balanced Score Card index system is selected and improved according to the changes of enterprises before and after implementing the green food certification system.Then,the performance evaluation index system of enterprises implementing green food certification is established.This index system has five strategic directions of finance,customer,internal management,social ecology,and learning and growth,and has 11 strategic targets,such as increasing operating profit,expanding market,improving the quality of staff,improving the production technology level,enhancing the core competence of enterprises,ensuring food safety,improving the physical quality of human,and protecting ecological environment.According to the principles of guidance,scientificity,comparability,feasibility,and significance,a total of 24 evaluation indices are established,including the change of product cost,change of product sales revenue,change of profit rate,change of return on investment,change of internal and external lost cost,change of the proportion of certified products in total sales and so on. | WU Xiu-min,WANG Shu-han College of Economic Management,Sichuan Agricultural University,Chengdu 611130,China | 2011 | Asian Agricultural Research2011，3，2： | 1 |
| 15 | Effects of Different Water Temperatures on Seeds Germination of Clematis lasiandra Maxim显示文摘 | LI Cai-xia1 LIAO Ming-an1* WEI Zhi-qiang1 SHEN Wen1 REN Ya-jun2 1. Horticulture College Sichuan Agricultural University Ya’an Sichuan 625014 China 2. College of Landscape Architecture Sichuan Agricul- tural University Wenjiang Sichuan 611130 China | 2012 | Medicinal Plant2012，，01： | 1 |
| 16 | Factors that Influence Enterprises' Enthusiasm for Continuously Establishing the Traceability System: An Empirical Analysis of 81 Enterprises in Sichuan显示文摘Agro-product enterprises are the mainstay of the traceability system,and are of great importance. We analyze the factors that influence the enthusiasm of agro-product enterprises for continuously establishing traceability system from characteristics of enterprises,environment and performance,using the data of 81 agro-product enterprises in Sichuan province. It shows that the enthusiasm is greatly influenced by enterprises' characters and performance,such as age,ownership,business pattern of enterprises,market breadth,condition of enterprises' traceability system,income,acceptance of consumers,sales volume. Finally we put forward some recommendations,such as consummating the relative policies,increasing the publicity and perfecting performance assessment system. | WANG Kun,WU Xiu-min,ZHAO Zhi-jing College of Economics and Management,Sichuan Agricultural University,Chengdu 611130,China | 2012 | Asian Agricultural Research2012，4，8： | 1 |
| 17 | Study on the Relationship of the Characteristics of Vascular Bundles in the First Internode and Grain-filling of Heavy Panicle Type Hybrid Rice显示文摘The characteristics of vascular bundle in the first internode from top and grain-filling of heavy panicle type hybrid rice(HPTHR) were studied. The results were as follows: The HPTHR had more vascular bundles and a much bigger area of single vascular bundle, all vascular bundle, all phloem and all xylem in the first inter-node than Shanyou63. The vascular bundles had the similar load of spikelet number and sink capacity between the HPTHR and Shanyou63. The HPTHR had not only a larger sink but also normal grain-filling and sink-filling, high seed-setting rate and heavier panicle. Those characteristics of vascular bundle were the biological bases for the larger and heavier panicle of HPTHR. The results also indicated that the breeding model of HPTHR was an effective measure for the super high-yielding rice breeding. | MA Jun, ZHOU Kai-da, MA Wen-bo, WANG Xue-dong, MING Dong-feng and YAN Zi-bing(Rice Research Institute of Sichuan Agricultural University, Wenjiang 611130, P. R . China) | 2002 | Agricultural Sciences in China2002，1，6： | 1 |
| 18 | The Problems in Circulation Channel of Dujiangyan Kiwi Fruit and the Countermeasures显示文摘Based on the overview of researches on circulation channel of agricultural products,this article presents the status quo of circulation channel of Dujiangyan kiwi fruit,including the production and circulation pattern of Dujiangyan kiwi fruit. Then it analyzes the problems in the current circulation channel of Dujiangyan kiwi fruit as follows: first,the long circulation channel leads to inefficient circulation and high costs; second,the deep processing capacity is poor,and the added value of fruits is low; third,the application of cold chain logistics technology is insufficient; fourth, blocked information circulation makes the cooperative relations between the subjects in channel fragile. Finally corresponding countermeasures and recommendations are put forward as follows: shortening circulation channel and improving circulation efficiency; improving deep processing capacity,and increasing added value of fruits; strengthening the use of cold chain logistics technology and equipments; establishing rational interest distribution mechanism,and consolidating cooperation between the circulation subjects. | ZHANG Jin-song ,TIAN Min-juan College of Economics and Management,Sichuan Agricultural University,Chengdu 611130,China | 2012 | Asian Agricultural Research2012，4，5： | 0 |
| 19 | Econometric Analysis of Research Papers on the Project of ' Turning Vulnerable Farmland into Forests '显示文摘Taking the Database of Chinese Scientific and Technical Periodicals of Chongqing VIP Information Co. ,Ltd. as the statistical analysis source,we analyze the inter-annual trends,the authors institutions,journals distribution,disciplines distribution,paper subjects and authors' cooperation of research papers on the project of ' turning vulnerable farmland into forests' in China during the period 1999 -2010,using the bibliometric method. The results show that during the period 1999 -2010,the research on the project of ' turning vulnerable farmland into forests' always captured the attention of academia,and the number of research papers annually averaged more than 300; the relevant forestry functional departments at all levels,forestry-related research institutions and universities have paid close attention to the project of ' turning vulnerable farmland into forests' in China; the group of core journals researched is concentrated in journals concerning forestry; in addition to forestry and agriculture,the research areas also touch upon economics,environment and other disciplines; the emphasis and hot spot of research are centered on applications, with few basic researches. | YE Chong 1 ,CAI Shi-zhen 2 ,HU Ting-xing 3 1. Library of Sichuan Agricultural University,Chengdu 611130,China 2. College of Landscape Architecture,Sichuan Agricultural University, Chengdu 611130,China 3. College of Forestry,Sichuan Agricultural University,Ya’an 625014,China | 2012 | Asian Agricultural Research2012，4，8： | 0 |
| 20 | Research on Strengths of Rural Tourism Development of Suining City in Sichuan Province in China显示文摘After the analysis of the value of rural tourism development in Suining City,the paper has pointed out that rural tourism development is an important content of Suining City accelerating economic development,a significant approach to promote social harmony and an innovation road to optimize industrial transformation.It has summarized the resources' districts and condition to develop rural tourism in Suining City.Based on 'one center and four districts',the layout mode for Suining rural tourism development has been analyzed.It emphasizes that Suining rural tourism development should enhance publicity,integrate financing channels,pay attention to optimization of service quality,highlight environmental protection and insist on scientific development. | ZOU Jingyuan,LI Peilin(Sichuan Agricultural University,Chengdu,Sichuan 611130,China) | 2012 | Journal of Landscape Research2012，4，7： | 0 |
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