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Volume，Issue1，2003

  • The molecular markers of powdery mildew resistance genes in wheat

    Issue 1, (2003) DOI: 10.11841/j.issn.1007-4333.2003.01.004
    Keywords：wheat,powdery mildew,resistance genes,molecular markers  
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    Updated：2024-02-27

  • Fruit production in the world and the suggestions for increasing competition of Chinese fruit products in international markets

    Issue 1, (2003) DOI: 10.11841/j.issn.1007-4333.2003.01.005
    Abstract：This paper reviews the fruit production and it's marketing in the world. The irnportance of Chinese fruit production over the world and the competition of Chinese fruit products in international marketse are analysed; the key problems of fruit production in China are discussed. The goal of directional cultivation, the priority of fruit species and main countries to export are suggested for the fruit production in China in the future: the government should reduce the tax revenue of fruit products, put more important budget into scientific researches on fruit science and technology, improve the crop composition of fruit species and cultivars, increase the dimension of individual fruit farm, develop cooperative organization in fruit production, apply and popularize modern and advanced techniques and management in orchards, improve fruit quality and open up the international markets in the East and South Asia and in Russian Federation to increase the competition of Chinese fruit products in national and international markets and to enhance the development of fruit production in China.  
    Keywords：China,fruit products,marketing,development,WTO agreement on agriculture  
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    Updated：2024-02-27

  • A review of effects of biofertilizers on crop yield and quality

    Issue 1, (2003) DOI: 10.11841/j.issn.1007-4333.2003.01.006
      
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    Updated：2024-02-27

  • Classification of the heterotic groups in introduced Yugoslav maize inbreds and their utilization

    Issue 1, (2003) DOI: 10.11841/j.issn.1007-4333.2003.01.007
    Keywords：Yugoslav maize,inbred lines,combining ability,heterotic groups  
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    Updated：2024-02-27

  • Cloning of cDNA encoding cinnamyl alcohol dehydrogenase from Eucommia ulmoides Oliv

    Issue 1, (2003) DOI: 10.11841/j.issn.1007-4333.2003.01.009
    Abstract：Cinnamyl alcohol dehydrogenase catalyses the conversion of p hydroxy cinnamaldehydes to the corresponding alcohols and is considered as a key enzyme in lignin biosynthesis. In this study, a cDNA fragment of cinnamyl alcohol dehydrogenase (CAD) was cloned from Eucommia ulmoides Oliv by RT PCR. As deduced from the 498 bp cDNA nucleotide sequence, it presented 68.5% identity with Malus domestica putative CAD and 66.1% identity with E.gunnii mRNA for CAD. These results suggest that the cDNA fragment is from CAD gene of Eucommia ulmoides Oliv.  
    Keywords：Eucommia ulmoides Oliv,cinnamyl alcohol dehydrogenase,lignin,DNA sequence  
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    Updated：2024-02-27

  • Matter elements model and its application to regional water resources synthesize assessment

    Issue 1, (2003) DOI: 10.11841/j.issn.1007-4333.2003.01.010
    Abstract：In order to identify the feasibility of elements model applied to regional water resource assessment, the element model method was introduced and the AHP method was adopted to calculate the weights of each criterion. As a case, the agricultural water resources of Hufu Plain in Hebei province were evaluated by using the element model. The results showed that the evaluation grade of the total agricultural water resources was low-level of 3 grade in this region; and the evaluation grades of its quantity of water resource, water supply and water utilization were 3, 3, and 1 respectively. the status of the total agricultural water supply and water demand are therefore far from optimistic in study region. The study above results suggest that the application of element models method for evaluating region water resource is feasible and reliable.  
    Keywords：water resources,matter elements model,AHP method,synthesize assessment  
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    Updated：2024-02-27

  • A simulative analysis of influence of precipitation on water leakage and nitrogen leaching in irregated farmland

    Issue 1, (2003) DOI: 10.11841/j.issn.1007-4333.2003.01.011
    Keywords：climatic factors,water leakage,nitrogen leaching,simulate  
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    Updated：2024-02-27

  • Comparison of soil water use benefits under different land use types in agro-pastoral ectone

    Issue 1, (2003) DOI: 10.11841/j.issn.1007-4333.2003.01.012
    Keywords：agro pastoral ectone,land use type,soil water use benefit  
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    Updated：2024-02-27

  • IRS and TM remote sensing image fusion based on wavelet transform

    Issue 1, (2003) DOI: 10.11841/j.issn.1007-4333.2003.01.013
    Abstract：By image fusion, many kinds of remote sensing data can be synthesized, and supplementary mutual advantage can be realized by obtaining the exact information efficiently. This paper introduced the principles and characteristics of wavelet transform in fusion of remote sensing satellite image, and a new fusion method was then presented which is called partial selected weight mallat wavelet transform, based on contrast, after improving traditional wavelet transform. IRS 1C panchromatic and TM multi spectral image data were used in comparative experiment; the result was compared with HIS method in terms of image quality. It is showed that the proposed method maximizedly preserves the Texture information of the original IRS panchromatic data, as well as the spectral content of the TM data, and is better than other conventional methods.  
    Keywords：image fusion,wavelet transform,contrast  
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    Updated：2024-02-27

  • Intrinsic driven force and trend of planting structure adjustment in the suburban area in North China Plain

    Issue 1, (2003) DOI: 10.11841/j.issn.1007-4333.2003.01.014
    Abstract：The characteristics and driven forces of change of cropping structure, in the suburban area of North China Plain, were discussed through a case study in Gaocheng County of Hebei province. The cropping structure was adjusted synchronously with the growth of grain production capacity in the previous 50 years. The trend has been from planting high yield crops to cash crops, from traditional diversified planting to specialized planting. The improvement of production and conditions of demand are prerequisite of structure adjustment, and the comparative advantages are the intrinsic driven force. The suggestions and key techniques of cropping structure adjustment for this region were proposed.  
    Keywords：North China Plain,suburban area,cropping structure,intrinsic driven force  
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    Updated：2024-02-27

  • Problems on introducing fine sweet persimmon varieties in northern persimmon-planted area,China

    Issue 1, (2003) DOI: 10.11841/j.issn.1007-4333.2003.01.015
    Keywords：northern China,temperature,pollination,rootstock,rainfall,sweet persimmon  
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    Updated：2024-02-27

  • Characteristics of cellulase activity of a composite microbial system-MC1 with efficient and stable cellulose degradation

    Issue 1, (2003) DOI: 10.11841/j.issn.1007-4333.2003.01.016
    Keywords：cellulose degradation,microbe,composite microbial system,enzyme activity  
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    Updated：2024-02-27

  • Characteristics of soil nutrients in solar greenhouse in Beijing suburb

    Issue 1, (2003) DOI: 10.11841/j.issn.1007-4333.2003.01.018
    Keywords：Beijing suburb,solar greenhouse,soil nutrients  
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    Updated：2024-02-27

  • Selection of a hyperaccumulator for phytoremediation of cadmium contaminated soil

    Issue 1, (2003) DOI: 10.11841/j.issn.1007-4333.2003.01.019
    Keywords：cadmium,contamination,oilseed rape,phytoremediation  
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    Updated：2024-02-27

  • Effect of heat treatment on chilling injury and physiological responses of cucumber during low temperature storage

    Issue 1, (2003) DOI: 10.11841/j.issn.1007-4333.2003.01.020
    Keywords：cucumber,chilling injury,membrane protective enzymes,soluble protein,membrane electric conductivity  
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    Updated：2024-02-27

  • Effects of temperature,gibberellic acid and ethylene on fiber synthesis and quality of excised pea seedlings

    Issue 1, (2003) DOI: 10.11841/j.issn.1007-4333.2003.01.021
    Keywords：pea seedlings,fiber,quality,gibberellic acid,ethylene  
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    Updated：2024-02-27

  • Mating type distribution and sensitivity to several chemicals of Phytophthora infestans from Inner Mongolia and Gansu Province, China

    Issue 1, (2003) DOI: 10.11841/j.issn.1007-4333.2003.01.022
    Abstract：The isolates of Phytophthora infestans were collected from Inner Mongolia and Gansu province from 1997 to 2001. The mating type and chemical response of these isolates were then determined. Among 143 isolates from Inner Mongolia, 140 belonged to A1 mating type, and the other three were self fertile isolates of A1 mating type. Among 41 isolates collected from Gansu, 40 of which belonged to A1 mating type, and 1 was self fertile isolate of A1 mating type. No isolate of A2 mating type was detected. Of 120 isolates from Inner Mongolia were tested on the sensitivity to metalaxyl, 50.8% were highly resistant, 42.5% were intermediate resistant, and 6.7% were sensitive.For other 41 isolates from Gansu, 26.8% were highly resistant, 29.3% were intermediate resistant, and 43.9% were sensitive. Also it was found that the vegetative growth of some resistant isolates was stimulated by metalaxyl. These results showed that the resistant isolates predominated in potato major producing areas in Inner Mongolia. The sensitivity of 35 isolates to dimethomorph and azoxystrobin with different levels of metalaxyl resistance were determined, 94% of which were sensitive and 6% were intermediate sensitive to dimethomorph, while 71.4% were sensitive and 28.6% were intermediate sensitive to azoxystrobin. No isolate resistant to dimethomorph or azoxystrobin was detected, and the resistance to metalaxyl did not correlate to the resistance to dimethomorph or azoxystrobin.  
    Keywords：Phytophthora infestans,mating type,metalaxyl,dimethomorph,azoxystrobin  
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    Updated：2024-02-27

  • Effects of benzoic and cinnamic acids on watermelon seedling growth and fusarium wilt occurrence

    Issue 1, (2003) DOI: 10.11841/j.issn.1007-4333.2003.01.023
    Keywords：benzoic acid,cinnamic acid,watermelon,root vigor,POD activity,seedling growth,fusarium wilt  
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    Updated：2024-02-27

  • Effect of phytase supplementation on growth performance and apparent ileal digestibility in weaned pigs

    Issue 1, (2003) DOI: 10.11841/j.issn.1007-4333.2003.01.024
    Keywords：weaned pig,phytase,growth performance,apparent ileal digestibility  
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    Updated：2024-02-27

  • Effects of β-1,3/1,6-glucan on performance and immune response of broilers

    Issue 1, (2003) DOI: 10.11841/j.issn.1007-4333.2003.01.025
    Keywords：glucan,broiler,immune response  
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    Updated：2024-02-27

  • Ontogeny of the fetal pituitary gonadotrophes and its relation to plasma LH-β concentration during gestation in sheep

    Issue 1, (2003) DOI: 10.11841/j.issn.1007-4333.2003.01.026
      
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    Updated：2024-02-27

  • Changes of plasma FSH concentrations of the fetuses and maternal ewes during gestation

    Issue 1, (2003) DOI: 10.11841/j.issn.1007-4333.2003.01.027
    Abstract：In order to determine the ontogeny of the pituitary gonad axis regulating mechanism during sheep fetal development, the changes of plasma FSH concentrations of the fetal and adult sheep during gestation were measured by bioassay (BA). The results demonstrated that there was a sharp increase of FSH concentration of the male fetuses from 60 to 90d of gestation. At 120d of gestation, FSH concentration of the fetuses kept the similar level as that of the fetuses on 90d, which followed by a significant decrease at new birth. The changing patterns of both male and female fetuses were similar, but FSH concentrations of the male fetuses from 90 to 120d were markedly higher(P<0 05) than that of the females. For the adult, FSH concentrations were significant higher at 60 and 90d of gestation than that at 120d and new birth. No obvious correlation was observed between the changing patterns of the fetuses and the adults during the gestation. The above results are important to elucidate the regulating mechanisms of animal reproduction and investigate the related problems in animal embryonic engineering.  
    Keywords：FSH,bioassy,ovine,fetus  
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    Updated：2024-02-27

  • Effects of endothelin-1 on femoral artery pressure and pulmonary artery pressure of laying-egg chickens

    Issue 1, (2003) DOI: 10.11841/j.issn.1007-4333.2003.01.028
    Keywords：endothelin-1,laying egg chickens,hemodynamics,femoral artery pressure,pulmonary artery pressure  
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    Updated：2024-02-27

  • Four new species of Stenelmis (Coleoptera: Dryopoidea,Elmididae) from China

    Issue 1, (2003) DOI: 10.11841/j.issn.1007-4333.2003.01.029
    Keywords：Coloptera,Elmidae,Stenelmis,new species  
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    Updated：2024-02-27

  • Studies on sanitation of food processing line in school nutritional lunch

    Issue 1, (2003) DOI: 10.11841/j.issn.1007-4333.2003.01.030
      
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    Updated：2024-02-27
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