Table of Content

15 August 2005, Volume 7 Issue 4

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Primary Discussion on High-yielding Theory and Practice of Super Hybrid Rice

MA Guo-hui

2005, 7(4):  3-8. 

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This article dealt with the relationship between rice yield increase and plant type improvement during last 50 years in China. The characteristics of the plant type of super hybrid rice were analyzed, compared with few advanced rice plant type in this review. The effective LAI increase, high sink capacity, the balance for high-level source ＆ sink, physical and physiological basis of the lodging-resistance was discussed in the view of high yielding theory of super hybrid rice. Also, super high-yielding examples and relative techniques were introduced for the super hybrid practice.

Research Progress of Plant Stress Resistance Improvement Applying Paclobutrazol

FANG Zeng-guo, ZHAO Xiu-fen, GAO Zu-ming

2005, 7(4):  9-12. 

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This paper mainly summarized the research progress of plant stress resistance improvement applying paclobutrazol and the effects of paclobutrazol on lodging, drought, cold, hot, salinity, caducity, weed and disease resistance of plant. Moreover, the paper put forward the main research directions in the future on application of paclobutrazol.

Large Scale Production Technology of Cucurbita pepo L. Hybrid Seed in Hainan Province

WU Hong, DONG Li-gong, CAO Zhen-mu, ZHANG Xiu-ming

2005, 7(4):  13-16. 

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Based on the characteristics of climate and soil fertility, occurrence regularity of disease and insect pests in Hainan province, and aimed at the factors of influencing production on a large scale of Cucurbita pepo L. hybrid seed, a set of culture and management techniques and production technology of hybrid seed Cucurbita pepo L. are bring forward.

Wood Oil Plant is an Important Mountain Resources in South China

LIAO Xing,WANG Han-zhong

2005, 7(4):  17-20. 

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The important function of wood oil plants in national economy was analyzed. Under the statement of several typical wood oil plants and exploitation situation in southern mountain areas of China, the developmental advices were brought forward.

The Progress and Prospect in Research on Wheat Dwarf Bunt

WANG Hai-guang, ZHU Hui-yun, MA Zhan-hong, LIU Liang, ZHANG Gui-xin

2005, 7(4):  21-27. 

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Wheat dwarf bunt, Tilletia controversa K hu （TCK）, is a hazardous exotic pathogen of quarantine significance. The pathogen of wheat dwarf bunt and its distribution and economic importance were introduced. This review summarized identification, risk analysis, pathogen treatment and the control of this disease.

Analysis on Protection and Utilization of Musk Deer Resources in China

LIU Wen-hua, TONG Jian-ming

2005, 7(4):  28-32. 

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This article reviewed species, distributions, population changes and economical values of musk deer in China, and also Analyzed their present conditions of protection and utilization from illegal capture, habitat destroy and key cultural technology. So three protective and utilizable suggestions are put forward： （1） Set up natural preserve region in high-density musk deer living areas, enhance protection and administration of musk deer resources. （2） Improve musk deer cultured technical levels by enlarging research investments. （3） Enforce macroscopic allocation of government and classifying the production and legal identifications of musk deer products.

Sonography of the Reproductive Organs in Ewe

DENG Li-xin, QI Chang-ming, HE Cong

2005, 7(4):  33-37. 

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In order to confirm the positions of the reproductive organs in living body such as vagina, uterine, ovary and the nearby organs from the uhrasonogram taken with B-mold ultrasound scanner, slaughter of ewes was used as the control. The results indicated that the optimum position for the transcutaneous scan with 3.5 MHz sector probe was in the less hair area between thigh inner and breast upper. The 5.0 MHz linear probe was used for transrectal scan. The ewe was restrained standby, and the faeces in rectum was removed. The long-handle probe was inserted into the anus slowly with the scanning side facing below. The ultrasonogram of vagina, cervix, urinary bladder were presented. Then it will present uterus and ovary when the probe scanned frontally and within 45 angles. The medium-intensity echo structure of the uterus and ovary were seen cleanly in front of the anichoic area of urinary bladder. Thehyperechoic surround membrane was distinct. The hyperechoic pubis with acoustic shadow was found in the borders between belly and pelvic cavity. The uhrasonograms were confirmed by immersion scan and intraoperative scan.

Molecular Integration Mechanism of Sperm with Outer Origin DNA and Making About Transgenic Animals

SUN Yu-jiang, WANG Li, LI Lan, PAN Qing-jie

2005, 7(4):  38-40. 

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Making transgenic animal by SMGT is a very simple and feasible method for research and application, but combining and inner-transferring of outer origin DNA has very complicated mechanism, this article discussed about substance basic and molecular mechanism of integrate between sperm and outer origin DNA and probed into integrate mechanism of outer origin DNA in sperm genome. In addition, making method of transgenic animal was discussed on the basis of the development of theoretical research.

Tri-dimension Pollution Cure Measures in Agricultural Products Processing

WANG Qiang, LIN Ding-gen, ZHANG Yu-hao, ZHANG Li-jian

2005, 7(4):  41-45. 

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Pollution factors and pollution approaches in agricultural products processing were discussed in this paper. Mutual action between agriculture tri-dimension pollution and processing for agricultural products was analyzed. Main problems of agriculture tri-dimension pollution curing in processing for agricultural products were pointed; Pollution prevention and cure measures were put forward.

Drought Resistance Effect and Analysis of Spraying Salt Nitro-fulvic Acid on Spring Wheat

ZHOU Yi, WANG Chuan-jiang, CAO Yi-ping

2005, 7(4):  46-50. 

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Utility efficiency of limited water on spring wheat under continuous drought stress condition, could be increased after spraying the solution of sodium nitro-fulvate three times before anthesis, after anthesis and grouting. The concentration of fulvic acid was set to be 50, 100 and 150 mg L^-1 which contained 1.1 g L^-1 of Na^＋. Spraying concentration set to be 50 mg L^-1 had the best effect on drought resistance. It could increase 9.4 % of yield when compared with CK, but decrease 13 % of water consumption. It could also increase 27.6 % of yield when compared with the treatment of spraying water. The germination percentage and water content of spring wheat could also be increased after its seed soaked by the solution, which showed that the effect is interaction between the two main components, sodium nitro-fulvate and sodium nitrate. However, spraying potassium nitro-fulvate, which contained 100mg L^-1 of fulvic acid and 1.8 g L^-1 of K^＋ led to decrease 7.6 % of yield when compared with the treatment of spraying water. It restrained the grow
wth of spring wheat.

Heavy Metal Pollution and Its Countermeasures in Soil-rice System

CHENG Wang-da, YAO Hai-gen, WU Wei, ZHANG Guo-ping

2005, 7(4):  51-54. 

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Heavy metal pollution in soil-rice system not only inhibits the growth and development of crops, but also poses a great threat to human health via food chain. The source and characteristics of heavy metal pollution in soil-rice system were reviewed in this article. The toxicity to both plants and human health posed by heavy metals was also analyzed. Finally, some approaches and strategies were proposed for alleviating heavy metal pollution in soil-rice system. It was proposed that there is a significant difference among rice genotypes in heavy metal uptake and accumulation in grains, thus providing a possibility of developing rice cultivars with low grain accumulation of toxic heavy metals, which is consider as a most efficient approach of producing safe rice in slightly or moderately contaminated soils.

Study on the Warning Symbol and Its Application for Cotton Industry Economy in China——China Cotton Production Prosperity Index（CCPPI） and China Cotton Growth Index（CCGI）

MAO Shu-chun, LI Ya-bing, WANG Xiang-he, HAN Ying-chun, WANG Guo-ping

2005, 7(4):  55-58. 

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The effects of CCPPI and CCGI in early warning system to cotton industry economy are analyzed, and the systematic composition of Report on Prosperity of China Cotton Production is explained here. Further study could help resolve asymmetry information in agriculture effectively, meet the thirst of cotton growers and demand of numerous market subjects for information in cotton industry economy, and it will accelerate develooment of agro-informatics.

Study on Intellectual Net-Platform of Information and Sci-Tech Service for Cotton Industry and Its Application

ZHENG Shu-feng

2005, 7(4):  59-64. 

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By using techniques and methods of knowledge engineering and combining techniques such as computer network, database, WebGIS, intelligent reasoning and multimedia, we integrated the research achievements and expert＇s knowledge of cotton culture in these years, and constructed the ＂Intellectual Information System for Cotton Industry of Anhui Province＂. The system is based on lntemet, through a website named as ＂Anhui Mianwang＂. It can not only provide widely information service, but also provide intellectual and remote science and technology service for cotton plant.

Regional Brand Construction and Competitive Ability of Agricultural Products

QU Yan-ping, XU Jian-wen

2005, 7(4):  65-67. 

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The regional brand refers to the public brand sign which a group of managers use in an area; Regional characteristic of agricultural production determine the status of regional brand during agricultural product＇s production and management. This paper has explained the essential features of the regional brand, and functions of competitive ability of regional agricultural producs, and analysed the existing problems of regional brand, offered a new thinking of constructing regional brand tactics.

Agricultural Generic Technology and Its Extension Organizations

ZHANG Qiao

2005, 7(4):  68-71. 

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Proposed conception of Generic Technology was that the perceptibility of connotation and characteristic about technology was deepened with the view of economy and management. The agricultural technology system can be divided into three groups： agricultural infrastructure technology, agricultural generic technology, and agricultural proprietary technology, and agricultural generic technology has some characteristics in technique and economy. The characteristics of agricultural generic technology fix on their different supply and extension organizations, and the organizations have different type of operation and cooperation.

Practice and Thinking of New Agriculture and Forestry Varieties and Technology Integrated Demon stration Base in Hebei Agricultural University

REN Shi-fu, LI BAO-hui

2005, 7(4):  72-76. 

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In this paper, backgrounds, mechanisms and projects of New Agriculture and Forestry Varieties and Technology Integrated Demonstration Base in Hebei Agricultural University are introduced. And also its obvious progress and stronger demonstration effects are reviewed. Furthermore, the following advices are proposed： sound organization and management system, suitable and advanced techniques, strong implementation, close cooperation and good mechanism.

Empirical Analysis for the Extension Pattern of University-Leading Agricultural Sci-tech

MU Yang-min, LIU Tian-jun, HU Jun-peng

2005, 7(4):  77-80. 

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This paper summarized the connotation of the Extension Pattern of University leading Agricultural Sci-tech and comparisons the other Extension Pattern of Agricultural Sci-tech. And based on empirical Analysis for the Extension Pattern of University-leading Agricultural Sci-tech, some policy advices are put forward.