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| 1 | Microstructure and mechanical properties of Mg-5Li-1Al sheets prepared by accumulative roll bonding显示文摘Ultrafine-grain and high-strength Mg-5Li-1Al sheets were prepared by accumulative roll bonding(ARB)process. Evolution of microstructure and mechanical properties of ARB-processed Mg-5Li-1Al sheets was investigated.Results show that, during ARB process, the evolution of deformation mechanism of t Mg-5Li-1Al alloy is as follows: twinning deformation, shear deformation, forming macro shear zone, and finally dynamic recrystallization(DRX). The grain refining mechanism changes from twin DRX to rotation DRX. With the increase in ARB cycles, strength of the Mg-5Li-1Al sheets is enhanced, whilst elongation varies slightly.With the increase in rolling cycles, anisotropy of mechanical properties decreases. It is conclusive that strain hardening and grain refinement dominate the strengthening mechanism of Mg-5Li-1Al alloy. | Legan Hou Tianzi Wang Ruizhi Wu Jinghuai Zhang Milin Zhang Anping Dong Baode Sun Sergey Betsofen Boris Krit | 2018 | Journal of Materials Science & Technology2018，34，2： | 13 |
| 2 | Climatic variation of tropical cyclones affecting China during the past 50 years显示文摘Trends of the tropical cyclones (TCs) influence on China and its four subregions,namely the South China (SC),East China (EC),Northeast China (NEC),and China's inland area (CI),are detected by applying quantile regression to the CMA-STI tropical cyclone best track and related severe wind and precipitation observation datasets.The results indicate that in the past 50 years,the number of TCs affecting China and its four subregions has remained steady,except that the frequency in extremely active years has decreased not only in China as a whole,but also in NEC.In addition,TC activity is found to have weakened over the northwest South China Sea,Guangdong,and Shandong Peninsula.However,the most important changes in seasonality are found in the first quartiles of the number of days of TCs affecting CI.While the extreme values of sustained winds all have decreasing trends,the extreme values of wind gusts are completely different not only among different orders of extreme values,but also among different subregions.However,the trends of extreme TC rainfall,namely the maximum storm precipitation and the maximum 1-h precipitation,are not significant. | YING Ming YANG YuHua CHEN BaoDe ZHANG Wei | 2011 | Science China Earth Sciences2011，54，8： | 8 |
| 3 | Absorption,Accumulation and Distribution of Zinc in Highly-Yielding Winter Wheat显示文摘Zinc(Zn) is an important essential microelement for wheat.In order to study the characteristics of Zn absorption,accumulation and distribution in highly-yielding winter wheat(with a grain yield of 9 000 kg ha-1),field experiments were conducted in Gaocheng County of Hebei Province,China.Four winter wheat cultivars,i.e.,Shimai 14,Jifeng 703,Shimai 12,and Shixin 828,and four cultivars,i.e.,Temai 1,Shimai 12,Shixin 531,and Shixin 828,were used in the experiment,during 2004-2005 and 2005-2006,respectively.Plant samples were taken from the plots at each growing stage for Zn concentration analysis.The main results showed that the concentration of Zn in various above-ground organs of wheat was 9.5-112.5 mg kg-1 at different growing stages.The organ with the highest Zn concentration differed with the change of growth center at different growing stages.Accumulation of Zn in leaf blades was the highest among all the organs during early growing period,and more than 50% of the Zn accumulation was distributed to leaf blades before jointing,and higher than that to other organs.In late growing period,however,the accumulation of Zn in grains was the highest,and 58.1% of the Zn accumulation was distributed in grains at maturity.The total accumulation of Zn in wheat plant during its life span ranged from 384.9 to 475.9 g ha-1.The amount of Zn required for the formation of 100 kg grain yield ranged from 4.3 to 5.2 g.All the organs were ordered in such a sequence that leaf blades > spikes > leaf sheaths > stems according to their net absorption and transportation of Zn as well as their contribution to Zn accumulation in grains.58.2-60.3% of the Zn accumulated in grains was redistributed from other organs,mostly from leaf blades.Concentration and accumulation of Zn in all the organs of wheat was high during early and middle growing periods,while accumulation of Zn in grains during late growing period mainly depended on the redistribution from other organs.According to these characteristics of Zn absorption and accumulation,Zn should be applied as seed dressing or basal fertilizer,so as to accelerate the early growth and Zn absorption of wheat. | DANG Hong-kai,LI Rui-qi,SUN Ya-hui,ZHANG Xin-wen and LI Yan-ming College of Agronomy,Agricultural University of Hebei,Baoding 071000,P.R.China | 2010 | Agricultural Sciences in China2010，9，7： | 5 |
| 4 | Effect of Partial Replacement of Nitrate by Amino Acid and Urea on Nitrate Content of Non-heading Chinese Cabbage and Lettuce in Hydroponic Condition显示文摘In this paper, the authors studied the effect of different mixtures of glyeine (Gly), isoleucine (Iso), proline (Pro), and urea solutions used as a partial (20%) replacment of nitrate in the nitrate content and quality of non-heading Chinese cabbage and lettuce in hydroponice. Five treatments were done 12 d before harvest. Compared to the control group, Gly had the best effect in reducing the nitrate content of both vegetable leaves and petioles; the mixture of Giy, Iso and Pro ranked second and urea the least. Treatments with amino acid could also increase soluble sugar and protein contents and enhance total-N in leaves significantly.In contrast, amino acid enhanced NRA in non-heading Chinese cabbage, while they decreased it slightly in lettuce. The results showed that amino acids and urea could reduce the nitrate content of both vegetables, but they had almost the same effect on non-heading Chinese cabbage. Moreover, amino acids were more effective than urea in lettuce. As a result, it was concluded that partial replacement of nitrate with amino acids not only reduced the nitrate content but also improved the quality of vegetables. | CHEN Gui-lin, GAO Xiu-rui and ZHANG Xian-bin( College of Horticulture , Agricultural University of Hebei, Baoding 071001 , P. R . China ) | 2002 | Agricultural Sciences in China2002，1，4： | 5 |
| 5 | Study on the Metallogenetism of Sub-mantle Plume and Mantle Branches in the Gold Mineralization Concentration Area of Northwest Jiaodong Peninsula显示文摘The northwest of Jiaodong peninsula is characterized by its greatest gold concentration area, enormous gold reserves and limited time interval(115±5Ma) of gold mineralization in China. Studies show that the east area of north China began its mantle plume evolution since the Yanshanian movement, and the Laiyang sub-mantle plume and its surrounding mantle branches such as those in Guojiadian, Aishan and Panshidian were formed in the mineralization concentration area of northwestern Jiaodong peninsula. With the development of mantle plume → sub-mantle plume → mantle branch → favorable expending structures, the deep-derived hydrothermal fluid moved up to the favorable places, such as brittle-ductile or ductile-brittle shearing zones, the internal and external contact zones of intrusions, dense fracturing zones and the contact zones between dikes and countryrocks, and concentrated into deposits. Then the gold mineralization concentration zones that are centralized on mantle branches were formed. This study takes Guojiadian mantle branch as an example to discuss their metallogenetism and conclude the metallogenetic mode. | NIU Shuyin CHENG Guangsuo ZHANG Jianzhen SUN Aiqun MA Baojun ZHANG Fuxiang WANG Baode XU Meng WU Jichun ZHAO Rongxin WANG Shanfei | 2014 | Acta Geologica Sinica(English Edition)2014，88，5： | 4 |
| 6 | Microstructure and mechanical properties at elevated temperature of Mg-Al-Ni alloys prepared through powder metallurgy显示文摘Mg-Al-Ni alloys were prepared by powder metallurgy, and their microstructure and elevated temperature mechanical properties were investigated. Results indicate that, in addition to α-Mg matrix, both coarse Al_3Ni_2 particles and fine Al Ni nano-particles exist in the Mg-Al-Ni alloys. The strength at 150?C is improved with the increase in Ni content. Mg-18.3Al-8Ni alloy possesses a compressive strength of234.7 MPa and a yield strength of 146.5 MPa. Plasticity is also improved with a low concentration of Ni. Mg-11.3Al-2Ni alloy possesses a compression ratio of 17.3%. The phases of Al_3Ni_2 and Al Ni in the alloys block the movements of grain boundaries and dislocations during the deformation at elevated temperature. The existence of Al Ni phase provides a non-basal slip system, leading to the improvement in plasticity. Finally, the formation mechanism of Al-Ni phases in the process is discussed with thermodynamics and kinetics. | Legan Hou Bingcheng Li Ruizhi Wu Lin Cui Peng Ji Ruiying Long Jinghua Zhang Xinlin Li Anping Dong Baode Sun | 2017 | Journal of Materials Science & Technology2017，33，9： | 4 |
| 7 | Source of ore-forming material for the Huangtuliang gold deposit,Hebei Province and ore prospecting in the deep periphery显示文摘The Huangtuliang gold deposit is characterized by its wide and large ore belt,stable extension and closely spaced orebodies.Unfortunately,no orebody was found by deep drilling.As a result,ore prospecting in this region was once put into dilemma.Detailed analysis of ore-forming and ore-controlling structures in the mining district by the authors has revealed that the ore-forming and ore-controlling structure in this mining district is a steeply dipping(85°-110°/∠70°-85° N-NNE),spade-shaped ductile shear zone,and the ore-controlling structures are a series of nearly erected second-ordered faults which are developed in the upper part of the ductile shear zone,intersecting with the ductile shear zone.Deep cutting of the ductile shear zone made it possible the ascending of ore fluids from the mantle plume at depth and these ore fluids would migrate upwards along the ductile shear zone under certain temperature and pressure conditions.Along their ascending path,the ore fluids would extract ore-forming elements from the country rocks and the extracted ore-forming elements would be deposited as ores in the hanging-wall second-ordered faults.The reason why no orebody was found in early prospecting at depth is that northward-dipping drilling in the southern part of the shear zone extended so deeply as to be beneath the shear zone.Only shallow-level orebodies could be found by southward-dipping drilling practice in the northern part of the shear zone.The location where deep-seated orebodies occurred shifted northwards and the orebodies occurred at greater depth.Therefore,it is natural that no orebody could be found when drill core passed through the shear zone.After the ore-forming and ore-controlling structures were well understood,the focus of ore prospecting was placed on the deep-level,northward-penetrating veins.In this way a number of new blind orebodies of great thickness have been found.On the basis of research development in the mining district,a prospecting plan has been made for ore prospecting in the periphery of eastern mining district.Prospecting practice has shown that there occur generally continuous engineering orebodies at large intervals.So,the Huangtuliang gold deposit has turned at one stroke from a medium sized to a large-sized,even a super-large gold deposit between prospecting lines 30-98. | NIU Shuyin SUN Aiqun WANG Baode HAN Yuchou WEI Minghui ZHANG Hai ZHANG Ge SHI Ping WANG Wenxing | 2008 | Chinese Journal Of Geochemistry2008，27，3： | 4 |
| 8 | Comprehensive Evaluation on Consumption Structure of Rural Residents with Principal Component Analysis in China显示文摘In order to make analysis on consumption structure of rural residents,the paper makes a principle component analysis on consumption expenditure per capita of rural residents in different areas of 2009 based on statistics of China statistical yearbook of 2010.Selecting a principal component,the paper arranges 31 provinces in China in order.Shanghai lists the 1st place with highest marks;coastal provinces in southeastern part,the Northeast,Beijing and Tianjin are at the top;the northern and central parts with Hebei,Shanxi,Hubei as representatives scores minus which is a little lower than that of average;the western part,such as Guizhou,Xizang,Gansu and so on are in far behind.The paper also makes analysis on the consumption structure of rural residents and proposes suggestions on how to accelerate consumption of rural residents. | GUAN Lin,LI Chun-lan,ZHANG Bo School of Science,Hebei Agricultural University,Baoding 071000,China | 2011 | Asian Agricultural Research2011，3，3： | 3 |
| 9 | Effects of Low Temperature Stress and INA Bacteriaon Chlorophyll a Fluorescence Induction Kineticsin Young Fruit of Two Apricot Cultivars显示文摘Effects of low temperature and INA bacteria on the change of chlorophyll a fluorescence inyoung fruit from two apricot cultivars were investigated. Low temperature decreased the potential activity(Fv/Fo) ,conversion efficiency of primary light energy (Fv/Fm)of PS Ⅱ and photochemical quenching (qP) inyoung fruit of two apricot cultivars. Low temperature enhanced non-photochemical quenching qN, decreasingthe quantum yield of photosynthetic electron transfer. The presence of ice nucleating active (INA) bacteria in-tensified the effects of low temperature, raised the injury temperature threshold from - 4℃ to - 2 - - 3℃.INA bacteria can be a factor to induce frost susceptibility of apricot fruit. The amount of damaged PS Ⅱ activi-ty center was related to apricot fruit size and cultivar. | YANG Jian-min , MENG Qing-rui, PENG Wei-xiu, WANG Xue-dong , ZHANG Yuan-hui , SUN Fu-zai, ZHAO Ting-chang and LI Shao-hua(College of Forestry , Hebei Agricultural University, Baoding 071000 , P. R. China Institute of Plant Protection ,Chinese Aeademy of Argricultural Sciences , Beijing 100094 , P. R. China College of Horticultural Sciences ,China Agricultural University , Beijing 100094 , P. R. China) | 2002 | Agricultural Sciences in China2002，1，12： | 3 |
| 10 | Cloning and Characterization of a Tau Glutathione S-transferase Subunit Encoding Gene in Gossypium hirsutum显示文摘A predicted tau glutathione S-transferase(GST) subunit encoding gene,named GhGST,was isolated from Gossypium hirsutum with RACE method from SSH library based on Verticillium | MA Zhi-ying,LI Zhi-kun,WANG Xing-fen,MA Jun,ZHANG Gui-yin(Agricultural University of Hebei,Baoding 071001,China) | 2008 | 棉花学报2008，20，S1： | 3 |
| 11 | Study on the ore-forming and ore-controlling structure of the Mujicun Cu (Mo) ore deposit, Hebei Province, China显示文摘The Mujicun Cu (Mo) ore deposit at Laiyuan, Hebei Province, is a currently proven large-sized Cu (Mo) polymetallic ore deposit and it is located in the second-ordered fault depression basin of the ditachment belt on the hanging-wall on the western side at the juncture of the Laiyuan dumbell-shaped complex in the northern part of the Fuping mantle-branch structure. Metallogenesis is controlled by diorite porphyrite in intrusive relation with the fault depression basin and other relevant fault structure systems and intenstive wall-rock alteration zones. This study, in conjunction with the most recent exploration data, analyzed the geological background of metallogenesis of this deposit, summaried the geological characteristics of typical ore deposits, determined the alteration zonation of the deposit, investigated regional metallogenesis and the genesis of typical ore deposits, discussed the regional ore-forming and ore-controlling structures, and generalized the regional ore-controlling model and metallogenic model of the deposit. It is considered that the Mujicun porphry Cu (Mo) deposit, the Tieling, Futuyu, Xiaoligou and other skarn-type Fe-Cu deposits and the He'ergou hydrothermal-type Pb-Zn-Ag deposit jointly constitute a three-in-one polymetallic orefield, with the characteristics of typical metallogenic series. | NIU Shuyin MA Guoxi CHEN Zhikuan WANG Baode CHEN Lijing SUN Aiqun MA Xiaofeng ZHANG Jianzhen MA Baojun CHEN Chao LU Hongpeng | 2012 | Chinese Journal Of Geochemistry2012，31，1： | 2 |
| 12 | Analysis of the ore-controlling role of Guojiadian mantle branch structure,Northwest Shandong Peninsula,China显示文摘Metallogenesis in the gold ore-concentrated zone of Northwest Shandong Peninsula is closely related to deep processes.The region in the eastern part of North China entered into the stage of mantle plume evolution during the Yanshanian movement,following the long-time stage of stable platform evolution during Paleozoic time.At that time,the ore-concentrated zone of Northwest Shandong Peninsula just entered into the development-evolution stage of the Laiyang sub-mantle plume and the Guojiadian mantle branch structure in its periphery.The core-mantle-source gold was present in the gas-liquid form,and it migrated through mantle plume→sub-mantle plume→mantle branch structure→favorable tectonic expansion zone to the favorable loci of the mantle branch structure,where gold was deposited as ores,thereafter constituting a series of large-to medium-sized gold deposits distributed around the Guojiadian mantle branch structure.This study also dealt with the Jiaojia fault as the main detachment(fault altered rock) belt on the northwestern margin of the mantle branch structure and also presented a basic cognition about the fact that the Sanshandao fault as the listric fault on the hanging wall of the detachment belt.Furthermore,on this basis,this study also pointed out the orientation for further ore prospecting in this region. | NIU Shuyin Sun Aiqun ZHANG Jianzhen MA Baojun WANG Baode CHEN Chao ZHANG Fuxiang LIU Cheng ZHANG Xiaofei | 2012 | Chinese Journal Of Geochemistry2012，31，4： | 2 |
| 13 | Race Structure and Distribution of Phytophthora infestans in the Investigated Areas of China显示文摘Ninety isolates collected from five different provinces and cities (Hebei, Yunan, Sichuan,Chongqing, Inner Mongolia ) during 1997 -1998 were tested with potato clones possessed 8 dominant mono-genes R1, R3, R4, R6, R7, R9, R10, R11 and the combination of R1-R4 of the international late blight dif-ferential host. It concluded that: (1) in the 90 isolates tested 21 different races were detected, of which the 1.3. 4. 7. 9. 10. 11 was very common with frequency of 32.2%, followed by 1. 3. 4. 6. 7. 9. 10. 11 and 3.4. 7. 9. 11 with frequency of 10.0%; (2) all tested resistant genes were compatible to the virulent gene of iso-lates of Phytophthora infestans assayed, which indicated that the virulent genes were very common in thetested population of Phytophthora infestans. | ZHU Jie-hua, YANG Zhi-hui, SHAO Tie-mei, TIAN Shi-min and ZHANG Zhi-mingDepartment of Plant Pathology , Agricultural University of Hebei, Baoding 071001 , P. R. China | 2003 | Agricultural Sciences in China2003，2，1： | 2 |
| 14 | Construction of Gliadin Fingerprints Database for the Main Wheat Cultivars Grown in North China显示文摘The standard gliadin fingerprints and their database of 68 major cultivars and a part of backbone parents, which have ever been extensively grown in North China since the 1950's, were constructed by using CAWGES software and an improved method of pH 3.2 A-PAGE. In the meantime, investigations were made on the utilization of the database in the area of gliadin fingerprints analysis, variety identification and genetic relationship study. The results showed that it provided an effective method for building core collections and variety identification. | LANG Ming-lin, LU Shao-yuan and ZHANG Rong-zhi( Department of Biology, Graduate School of CAS , Beijing 100039 College of Life Science , Hebei Agricultural University , Baoding 071001 ) | 2002 | Agricultural Sciences in China2002，1，2： | 1 |
| 15 | Revisiting intrinsic brittleness and deformation behavior of B2 NiAl intermetallic compound: A first-principles study显示文摘For NiAl intermetallic compound with B2 structure, there is still no calculation combining models of single and multiple layers while using the same basic set. Furthermore, some recently proposed criteria for brittleness and toughness have not been used to analyze its deformation behavior. Thus, first-principles calculation was applied to comprehensively study the elastic properties, ideal strength, generalized stacking fault energy and surface energy of B2-NiAl intermetallic compound. The results suggest that calculations based on the current basic set give more accurate lattice parameters and elastic moduli.The Pugh criterion and Cauchy pressure cannot be used to interpret the intrinsic brittleness of NiAl. In comparison, the ductility parameter based on the strain energy under elastic instability and ZCT and Rice criteria based on generalized stacking fault energy and surface energy successfully identify the intrinsic brittleness of the NiAl intermetallic compound. The reason why [111] slip always occurs in the deformation along [100] direction was clarified by examining the critical value for brittle-ductile transition.The results of density of state indicate shear deformation has less impact on structural stability, and the change of charge density difference implies that <001> shear induces more intensive redistribution of charge density, which is well correlated to the brittleness and deformation behavior of NiAl intermetallic compound. | Hui Xing Anping Dong Jian Huang Jiao Zhang Baode Sun | 2018 | Journal of Materials Science & Technology2018，34，4： | 1 |
| 16 | Quality Management System of Agricultural Products Based on Spring显示文摘This article gives an overview of important property of the integrated management of agricultural product quality safety system,analyzes the lightweight characteristics of Spring technical system,hierarchical organization of MVC,and the technology SSH+Ajax associated with the Spring framework system.On the basis of this technical system,we design the quality management system of agricultural products under B/S model.This article points out that this system is realized mainly through consumers'information feedback and order management;then discusses operation environment,expandability,portability and security of the system. | ZHANG Ya-nan ,ZHAO Quan-dong College of Information Science&Technology,Agricultural University of Hebei,Baoding 071000,China | 2012 | Asian Agricultural Research2012，4，7： | 1 |
| 17 | Analysis of Plant Landscaping Characteristics of the Riverside Park in Baoding City of China显示文摘By taking the Riverside Park in Baoding City as an example,based on the analysis of the general situation of the park,the paper considers that it should build plant landscape framework according to local condition,so as to manifest temporal and spatial variation and reflect artistic conception of landscape.Six characteristic scenic spots with remarkable plant landscaping have been selected for the analysis and research of plant landscaping characteristics,aiming to acquire methods for plants processing in riverside landscape belt design.It has pointed out problems existing in riverside plants arrangement and theme's creation,and proposed corresponding reconstruction measures,providing a reference for plant arrangement of urban riverside landscape belt. | ZHEN Yuehui1,ZHOU Zhengchen1,ZHANG Hongyan2,ZHANG Wenjiao2(1.Common Carrier Bureau of Baoding City,Baoding,Hebei 071051,China 2.Baoding Vocational Technical College,Baoding,Hebei 071051,China) | 2012 | Journal of Landscape Research2012，4，7： | 1 |
| 18 | Study on Mechanisms of Cd^(2+) Sorption on Goethite byMicrocalorimetry显示文摘A study on energy changes and mechanisms of Cd sorbed on goethite was performed using the technique ofmicrocalorimetry. The data of the amount of Cd sorption (Aq) and concentration of Cd in equilibrium solution(Ce), and the data of Aq and the heat effect (AH) caused by Cd^2+ sorption on goethite all fitted Langmuirisotherm. The amount of heat released from Cd sorption on goethite increased with the amount of Ce or Aq.The reaction process of Cd sorption on goethite may be divided into five stages and three plateaus, dependingon the variation of enthalpy change (.Hm) of Cd sorption with Aq, which implied three mechanisms ofinteraCtion between Cd and goethite. The experimental results showed that the microcalorimetry may beuseful for determination of microcalorie variation in soil. | ZHANG GUIYIN WANG TIANZHI DONG YUANYAN LI XUEYUANI(1Huazhong Agricultural University, Wuhan 43OO7O (China))(2Agricultural University of Hebei, Baoding 071001 (China))(3 Wuhan University, Wuhan 450072 (China)) | 1999 | Pedosphere1999，9，4： | 1 |
| 19 | The Research of Impact of Returning Cultivated Land to Forests in Poverty Areas around Beijing-Tianjin on Local Economy——A Case of Shunping County in Hebei Province, China显示文摘Taking Shunping County of Hebei Province as an example,according to the relevant survey data in the year 2008 after returning cultivated land and data in the year 2001 before returning cultivated land, the thesis analyzes the impact of implementation of project of returning cultivated land to forests on local land use structure, three industrial added value and famers' per capita income. The results show that returning cultivated land has played a certain positive role on the local economic development and the improvement of people's life level.However, there are also some shortcomings: although famers' income is increasing with low growth rate, a large portion of famers still have not shaken off poverty; the farmers depends on subsidies greatly and the compensation mechanism of returning cultivated land is not considered well. China should further perfect the ecological compensation plan, and build rational ecological compensation mechanism in order to make the areas of returning cultivated land have self-blood-producing function; Shunping County should make full use of the location advantage in areas around Beijing-Tianjin, develop deep processing based on fruit trees industry, strengthen farmers' skill training, and increase input in the agricultural infrastructure construction to propel the sustainable development of agriculture. | ZHAO Li, ZHANG Peng-tao Institute of Rural and Urban Construction, Agricultural University of Hebei, Baoding 071001, China | 2010 | Asian Agricultural Research2010，2，12： | 1 |
| 20 | Studies on the POD and IOD Activities of the Dwarfing Stocks and the Red Fuji Apple Grafted on Corresponding Interstocks显示文摘The seasonal changes of POD and IOD enzyme activities in the leaves of 4 dwarfing stocks and Red Fuji apple grafted on 5 interstocks and the POD and IOD activities of different positions of Red Fuji Apple on various interstocks were studied. The results showed that the seasonal changes of POD and IOD activities in the leaves of 4 dwarfing stocks were similar to that of the Red Fuji Apple. The enzyme activities of stocks were closely correlated with those of the Red Fuji Apple grafted in corresponding interstocks and the POD and IOD activities of semi-dwarfing stocks were lower than those of the dwarfing and very-dwarfing stocks. There were many more differences of POD activities in phloem and activities in leaves among different interstocks.There was a significant negative correlation between the POD and IOD activities and the growth potential of the Red Fuji Apple grafted on interstocks in the last ten days of both May and September. The best time to use POD and IOD activities to forecast the dwarfing ability of stocks was in the last ten days of both May and September. | XU Ji-zhong, SHI Baosheng, MA Bao-kun, GUO Run-fang, LI Xiao-dong and ZHANG Xian-bin( Horticultural College of Hebei Agricultural University, Baoding 071001 ,P.R. China Forest College of Hebei Agricultural University, Baoding 071001 ,P.R. China) | 2002 | Agricultural Sciences in China2002，1，5： | 1 |
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