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  Allelopathic Effects of Water Extracts from Millet on Seed Germination and Seedling Growth of Giant Foxtail ZHAO Na, LI Guoyu, LI Guoqing, CONG Xinjun Journal of Agriculture    2024, 14 (4): 1-6.   DOI: 10.11923/j.issn.2095-4050.cjas2023-0078 Abstract + (327)    HTML (9)    PDF (1290KB) (129)       Knowledge map    In order to explore the allelopathy between millet and giant foxtail growth, the effects of different concentrations of water extracts on foxtail millet seed germination and seedling growth were studied by using‘Jinxuan 6’and ‘Setaria viridis’ as experimental materials. The results showed that different concentrations of water extracts have‘low promotion and high inhibition’on seed germination and seedling growth. Compared with the control, the emergence rate was decreased by 13.888%, and the allelopathic index was -0.139 under the treatment of original solution. The comprehensive indexes of root length, bud length, fresh weight and dry weight were -0.070 and -0.034 under the treatment of original solution and 10 times diluted solution, which showed allelopathic inhibition, meanwhile the total length, leaf area, chlorophyll content and SOD of plant were lower than those of the control. The emergence rate was increased by 33.333% and 11.117% under the treatment of 50 and 100 times diluted solution, and the comprehensive indexes of root length, bud length, fresh weight and dry weight were 0.275 and 0.153, which showed allelopathic promotion. Among them, the 50 times diluted solution had the strongest promotion, the total length, leaf area, chlorophyll content and SOD of plant were significantly different from the control. The millet field is often accompanied by a large number of giant foxtail, the results will provide a theoretical basis for removing the giant foxtail at the seedling stage.

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  Preliminary Screening of Soybean Varieties Suitable for Intercropping with Corn in Zibo LIU Weixia, LU Duxu, LU Zhenyu, ZHANG Chao, ZHAI Jiqing, ZHAI Naijia, WANG Guangming Journal of Agriculture    2024, 14 (4): 7-13.   DOI: 10.11923/j.issn.2095-4050.cjas2023-0073 Abstract + (321)    HTML (11)    PDF (1344KB) (135)       Knowledge map    The aim is to promote the healthy and stable development of the corn industry, adjust and optimize the corn planting structure, enrich diversified planting patterns in Zibo City, and achieve the purpose of green, high-quality and efficient production. This study analyzed the comprehensive performance of intercropping between the same corn variety and different soybean varieties, and selected suitable soybean varieties for local intercropping cultivation preliminarily. The results showed that under the same meteorological environment, the incidence of northern leaf blight and smut of maize in intercropping mode was mild, and there was little difference in other characters. The growth period of early maturing and shade tolerant soybean varieties such as ‘Hedou 23’, ‘Hedou 12’, and ‘Qihuang 34’ was 1-3 days shorter than other varieties. They had strong resistance to Riptortuspedestris, moderate and stable main stem height, node number, and bottom pod height. The grain weight per plant was 0.53-1.72 g higher than other varieties, and the yield was 88.81-214.59 kg/hm2 higher than other varieties. Overall, varieties such as ‘Hedou 23’, ‘Hedou 12’, and ‘Qihuang 34’ were suitable for intercropping of corn and soybean in Zibo region.

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  The New Wheat Variety ‘Jirumai 25’ with Drought Resistance, Water Saving, High and Stable Yield: Breeding and Characteristic Analysis WANG Fuyu, CHEN Guiju, GAO Qiurong, SHAO Minmin, HUANG Ling, ZHAO Kai, YANG Benzhou, ZHANG Yudan, SUN Leiming, ZHAI Hongmei, WANG Lin Journal of Agriculture    2024, 14 (7): 6-11.   DOI: 10.11923/j.issn.2095-4050.cjas2024-0018 Abstract + (294)    HTML (5)    PDF (1673KB) (89)       Knowledge map    In order to cultivate new wheat varieties with stable yield in dry years and high yield in wet years, a new wheat variety 'Jirumai 25' was bred by Jining Academy of Agricultural Sciences. This variety was developed through sexual hybridization using the high-yield and drought resistant variety 'Shannong 2149' as the female parent and the high-yield variety 'Liangxing 619' as the male parent. 'Jirumai 25' is the winter type with a plant height of 77.5 cm, good lodging resistance and ripening, full grain, good commodity, drought resistance, water saving, high and stable yield, and good integrated resistance. The results of the two-year regional experiments showed that the average yield was 7742.55 kg/hm2, which was 4.02% higher than that of the control variety. In the production experiment of Shandong wheat dryland in 2022-2023, the average yield was 7176.15 kg/hm2, which increased by 5.6% compared with 'Shannong 27', and the yield increase rate was 100%. It was approved by the Shandong Crop Variety Approval Committee in December 2023, with the approval number of Lu Sheng Mai 20230029. The approval of 'Jirumai 25' wheat new variety provides strong breed support for dryland wheat production in southwestern Shandong and has a broad application prospects.

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  Exploring Functions of Farmland Ecosystems to Promote Green and Low-carbon Development of Agriculture: Summary of 2024 Academic Annual Meeting of Agricultural Resources and Environment Branch of China Association of Agricultural Science Societies Journal of Agriculture    2025, 15 (1): 1-6.   Abstract + (190)    HTML (14)    PDF (1018KB) (60)       Knowledge map    Ensuring food and ecological security, and achieving carbon peak and carbon neutrality goals are important strategic choices for China. This article is based on the 2024 academic conference of the Agricultural Resources and Environment Branch of the China Association of Agricultural Science Societies (CAASS). Experts were organized to discuss and exchange countermeasures in the fields of farmland conservation and quality improvement, sustainable utilization of agricultural water and soil resources, synergy between agricultural emission reduction and carbon sequestration and adaptation to climate change, soil pollution prevention and health, non-point source pollution prevention and control, high-value utilization of agricultural waste, and utilization and diversity of biological resources, in order to address the problems and challenges faced by the current improvement of farmland ecosystem functions, including unclear mechanisms and insufficient application basic research, insufficient innovation in soil carbon sequestration technology, and the urgent need to break through theories and technologies obstacles for farmland pollution control and waste recycling. The latest research progress in various fields was summarized, and future key research directions were discussed, in order to better explore the ecological functions of farmland and promote green and low-carbon development of agriculture effectively.

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  Research Progress of Application of Ground Penetrating Radar Technology in Soil Properties Detection FU Meiling, ZHU Xiangming, DUAN Wenbiao Journal of Agriculture    2024, 14 (4): 93-100.   DOI: 10.11923/j.issn.2095-4050.cjas2023-0214 Abstract + (173)    HTML (7)    PDF (1375KB) (482)       Knowledge map    Ground Penetrating Radar (GPR) is recognized for its rapid, non-invasive technology in medium and small-scale near-earth sensing. It has been widely applied in soil property analysis due to its considerable data richness, high resolution and excellent spatial continuity. This article presented a comprehensive review of the principles underlying GPR’s use in soil property detection, elaborated on forward simulation methods and the prevalent soil dielectric models in use. It summarized the current advancements in applying GPR technology for assessing various soil properties, including moisture content, texture, stratification, compaction, and salinity. Additionally, the paper discussed the challenges and limitations in the field applications: the influence factors of field detection were complex, and the data interpretation was complex and subjective, most of the researches only stayed in the qualitative or semi-quantitative stage. Concluding perspective, the article pointed out that with ongoing advancements in signal processing and theoretical research, GPR held significant potential for future innovations in soil characteristic exploration. This work aimed to serve as a valuable resource for ongoing and future studies on the application of GPR in soil property investigation.

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  Grain-related Traits in Maize: Genome-wide Association Analysis and Candidate Gene Prediction CHEN Xinyi, LIU Chenyan, HUA Mingzhu, XU Xin, FENG Wenxiang, WANG Baohua, FANG Hui Journal of Agriculture    2024, 14 (4): 26-36.   DOI: 10.11923/j.issn.2095-4050.cjas2023-0092 Abstract + (172)    HTML (10)    PDF (2139KB) (275)       Knowledge map    To explore the natural variations in regulating the maize kernel development and to assist in the genetic improvement of maize yield traits, in this study, 150 maize inbred lines with rich genetic variations were selected as materials for investigation. Combining 34,342 SNP markers and three models, a genome-wide association analysis was conducted on five grain-related traits. The results revealed that a total of 18 independent loci were significantly associated with the target traits, with each locus accounting for 12.24% to 15.41% of the phenotypic variations. Additionally, significant epistatic interactions were identified among four pairs of SNPs associated with kernel length, collectively explaining 5.32% of the phenotypic variations. By integrating the dynamic transcriptome data of kernel development in the B73 inbred line and functional annotations of genes, 19 candidate genes were predicted and classified into four categories: 6 enzymes, 3 ribosomal proteins, 1 transcription factor, and 9 other proteins. These candidate genes provide new genetic resources for deciphering the molecular mechanisms of maize kernel development and enhancing maize kernel size and yield. Through this research, we have not only uncovered the natural variations that regulate the development of corn kernels but also provided new genetic resources for the genetic improvement of corn yield traits. These findings are expected to bring new breakthroughs in corn breeding efforts, enhance corn production, and thereby better meet human needs for food.

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  Research Progresses on Improvement of Saline-alkaline Soil with Wood Vinegar YIN Meili, ZHANG Kaiyu, KANG Furen, GAO Yulin, ZHANG Sheng, ZHANG Xin, LI Qiang, CAO Taotao, ZHENG Jiewen Journal of Agriculture    2024, 14 (6): 31-38.   DOI: 10.11923/j.issn.2095-4050.cjas2023-0141 Abstract + (172)    HTML (8)    PDF (1266KB) (323)       Knowledge map    Saline soil has limited plant growth due to its high alkalinity, poor air permeability, poor water permeability, easy surface hardening, low nutrient content, and harmful salt content. However, the national food security strategy requires greater efforts to “request food from saline soil land”. A large number of studies had proved that the appropriate concentration of wood vinegar could effectively improve the physical and chemical properties of saline soil, thereby increasing its productivity of saline soil. The article listed the physical and chemical properties and component contents of different types of wood vinegar, described the range of application concentrations of wood vinegar, and summarized the changes in soil physics, chemistry, microorganisms, enzyme activities, and plant growth after wood vinegar was applied to saline-alkali soil, so as to provide a theoretical reference for the application of wood vinegar in saline soil.

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  Effects of Planting Density on Grain Filling Characteristics and Dry Matter Accumulation of Maize YANG Meili, WANG Bangtai, LU Hongwei, CHENG Jianmei, SU Yujie, ZHAO Shuzheng, ZHANG Xiaochun, CHENG Cui, QIN Guiwen Journal of Agriculture    2024, 14 (8): 1-8.   DOI: 10.11923/j.issn.2095-4050.cjas2023-0153 Abstract + (158)    HTML (6)    PDF (1334KB) (102)       Knowledge map    In order to clarify the effects of planting density on the grain filling characteristics, dry matter accumulation, yield and yield components of different maize varieties, in this study, the medium-high yield maize varieties ‘Yongyou 1573’ and ‘Yongyou 1593’ were used as experimental materials in 2021-2022, and three densities of 60000, 75000, 90000 plants/hm2 were set. The results showed that under different planting densities, the 100-grain weight showed a "fast increase-slow increase" rising trend, and the grain filling rate showed a single peak curve of "first increase and then decrease", and the peak filling appeared about 22 days after pollination. Increasing the planting density significantly reduced the theoretical maximum 100-grain weight (a), the maximum grain filling rate (Rmax), the average grain filling rate (Rmean) and the grain weight (Wmax) when the grain filling reached the maximum rate, and the yield per plant was significantly positively correlated with the 100-grain weight, the number of grains per ear, Wmax, Rmax and Rmean. After pollination, the dry matter accumulation of plants decreased with the increase of density, and the decrease of high density was more significant. The proportion of vegetative organs of plants in the early stage of filling was relatively large. The proportion of each organ of plants in the middle and late stage of filling was in the order of grain>stem sheath>leaf>ear axis>bract, and the contribution rate of stem sheath dry weight to grain yield was the largest. Increasing planting density reduced the ear length, ear diameter, grain number per ear and yield per plant of different maize varieties, and increased the bald tip length. The yield per unit area was the highest at the density of 75000 plants/hm2. There were differences among varieties. The 100-grain weight of ‘Yongyou 1573’ was less than that of ‘Yongyou 1593’, and the grain number per ear and yield per unit area were greater than the latter, indicating that the 100-grain weight and grain number per ear jointly affected the yield per unit area. This study provides theoretical basis for the selection of optimum planting density and the improvement of corn yield, and also has theoretical guiding significance for the realization of high efficiency and yield increase of summer corn in northern Henan.

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  Effects of Drought and Rehydration on Yield and Dry Matter Accumulation and Distribution of Winter Wheat YIN Xundong, LV Guangde, CHEN Yongjun, QIAN Zhaoguo, LIU Jia, ZOU Junli, ZHANG Jibo, JIANG Mengyuan Journal of Agriculture    2024, 14 (5): 1-8.   DOI: 10.11923/j.issn.2095-4050.cjas2022-0144 Abstract + (146)    HTML (13)    PDF (1265KB) (68)       Knowledge map    In order to determine the effects of drought and rehydration on dry matter accumulation and distribution in various organs and grain yield of winter wheat, ‘Jimai 22’ was selected as the research object, and 100%(CK), 80%(T1), 50%(T2), 25%(T3) and 0%(T4) of the normal water supply (75 mm) were irrigated at jointing stage (April 2), and rewatered at the flowering stage (April 26) until the soil relative humidity reached 90 %. The dry matter mass and total dry matter mass of each organ of the plant in the two growth stages were measured, as well as the final yield of each treatment. The results showed that dry matter allocation ratio of winter wheat leaves decreased under drought stress at jointing stage, dry matter allocation ratio of stem and ear increased, dry matter allocation ratio of leaf sheath did not change much, and dry matter allocation ratio of all organs recovered to the same level as control after rehydration. The total dry matter weight of winter wheat treated with T1, T2, T3 and T4 decreased by 11.3%, 16.0%, 24.2% and 35.0% compared with CK, and the dry matter weight per spike decreased by 15.7%, 20.0%, 26.6% and 32.0%. The pre-flowering dry matter transport and transport rate of leaves were significantly decreased, while the pre-flowering dry matter transport rate of leaf sheath and stem was significantly increased. Compared with the control, the yield of winter wheat under T1, T2, T3 and T4 treatments decreased by 16.2%, 24.4%, 29.4% and 33.0%, the number of grains per spike decreased by 9.9%, 11.6%, 20.0% and 23.3%, and the sterile spike rate increased by 6.2, 7.5, 9.6 and 8.1 percentage points, respectively. It had little effect on 1000-grain weight and spikelet number. In conclusion, drought at jointing stage leads to dry matter distribution to storage organs such as stems and panicle, and the total dry matter weight and panicle dry matter weight decreased significantly after rehydration, and the greater the degree of drought stress, the greater the range of change. Drought stress at jointing stage resulted in the decrease of panicle number, the increase of sterile panicle rate and the decrease of yield.

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  Reviews on Storage and Processing of Citrus Fruits WANG Jianhui, GUO Weiqing, ZHENG Fan, ZHANG Yin, WANG Xinhui, LIU Dayu, TANG Jiang Journal of Agriculture    2024, 14 (8): 49-55.   DOI: 10.11923/j.issn.2095-4050.casb2023-0164 Abstract + (145)    HTML (5)    PDF (1475KB) (340)       Knowledge map    Citrus is the largest category of fruit in China, which is widely planted and has many cultivars for fresh fruit market. To extend shelf life, promote intensive processing, improve enterprise’s benefit, current research progresses related to fruit storage and processing have been reviewed. At first, new preservation technologies applied in Citrus fruits’ storage were summarized. Subsequently, innovation technologies for processing products and by-products utilization were discussed. Finally, functional components in Citrus with potential application in pharmaceutical industry were also reviewed. Therefore, depending on different cultivars in production areas, fruit sorting system after post-harvest are recommended for orange and lemon varieties. Meanwhile, the non-thermal processing technology and enzymatic digestion for de-peeling is utilized for tradition processing products, such as sweet orange and tangerine. Functional components in Citrus will be extracted and prepared to medicinal and edible food. In conclusion, new technology for storage and processing are used in Citrus to extendindustry chain, which significantly boost industry development in future.

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  Rice Bakanae Disease in Rice Varieties: Resistance Evaluation and Screening YU Yanmin, WU Hongtao, LIU Haiying, XU Zhenhua, WU Licheng, YANG Zhongliang, ZHANG Shuli, GAO Dawei, YAN Ping Journal of Agriculture    2024, 14 (7): 1-5.   DOI: 10.11923/j.issn.2095-4050.cjas2022-0115 Abstract + (144)    HTML (13)    PDF (1238KB) (73)       Knowledge map    In order to discuss resistance level and field occurrence of rice bakanae disease in the south of Heilongjiang, and screen rice bakanae disease resistant varieties, incidence rate of 60 conventional japonica rice in field were investigated and analyzed, adopting artificial inoculation method. The results indicated that: different rice varieties had different degrees of infestation in the field. The incidence of rice bakanae disease ranged from 0.8% to 39.9%, the average incidence was 14.6%. One rice variety with high resistance and 26 resistant rice varieties were screened out, the resistant varieties accounted for 73.3%, the overall resistance ratio was 11:4. There were differences in rice varieties resistance to rice bakanae disease in southern Heilongjiang Province, resistant varieties should be encouraged to plant to prevent the occurrence of disease in rice production. This study provides some basis for green disease control and rice bakanae disease resistance breeding.

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  Current Status and Prospects of Biodiversity Application in Low-carbon Agriculture CHEN Junbin, HU Guang Journal of Agriculture    2024, 14 (4): 42-51.   DOI: 10.11923/j.issn.2095-4050.cjas2023-0139 Abstract + (140)    HTML (10)    PDF (1648KB) (184)       Knowledge map    In the context of promoting the ecological civilization in China, carbon fixation and efficiency enhancement in agricultural industry has been listed in the "carbon peaking and carbon neutrality goals", and low-carbon agriculture has emerged accordingly. Biodiversity is the basis of ecosystem functions and services, and plays a key role in the agricultural decarbonization. Protecting biodiversity in farmland and fully exploiting its ecological effects is an important approach to achieve agricultural decarbonization. In this study, the literature from 2010 to 2022 in the database of Web of Science was selected. Using the keyword co-occurrence and cluster analysis of CiteSpace bibliometric software, the international research trends and topics of biodiversity in low-carbon agriculture were analyzed, and the functions of biodiversity were summarized. The results showed that the conservation and management of biodiversity was the hot topics in low-carbon agriculture. Biological control was the main practice for biodiversity to achieve agricultural decarbonization. By evaluating the ecological value of the diversity of different biological taxa, it was found that biodiversity could increase the ecological and economic value of the agricultural production process. Future research can explore biodiversity-based multifunctional agricultural development at the ecosystem and landscape scales, thus better contributing to the successful achievement of the “dual carbon” goals.

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  Study on Breeding System of Bougainvillea glabra ‘Mrs. Eva’ DU Xuelin, LIU Yueming, WU Qing, WEN Zhi, LIU Chunqi, WANG Fenglan Journal of Agriculture    2024, 14 (5): 47-53.   DOI: 10.11923/j.issn.2095-4050.cjas2023-0125 Abstract + (139)    HTML (6)    PDF (1707KB) (68)       Knowledge map    To clarify the flowering characteristics and the impact of breeding systems on Bougainvillea glabra 'Mrs. Eva', so as to promote its hybrid breeding and garden application, field observation method was adopted to investigate its flowering phenology, as well as the dynamic process of flowering and morphological characteristics of its flowers. FDA staining method and liquid culture medium method were used to determine its pollen viability and in vitro germination rate. The breeding system was determined through a combination of morphological observation, aniline blue staining method, and field hybridization experiments. The results showed that: (1) the floral tube structure of B. glabra 'Mrs. Eva' was unique, cylindrical with upper part wrinkled and both ends swollen, which hamper most insect pollination. (2) The pollen grains of B. glabra 'Mrs Eva' were round or elliptical in shape, with reticulate patterns; the total pollen count per flower was 1375, and the suitable temperature for pollen germination was 28℃; the pollen exhibits group germination effect. (3) The ratio of pollen quantity to ovule was 11000, and the hybridization index was 4. Based on the results of field bagging and artificial pollination experiments, it can be concluded that the main breeding system of B. glabra 'Mrs. Eva' is cross-pollination type and requires pollinators. The research results are of certain significance for resource utilization and germplasm innovation of B. glabra ‘Mrs. Eva’.

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  Application of Plant Growth Regulators in Peanuts and Safety Analysis LIN Qiujun, WU Xianxin, ZOU Xun, LI Guang, WANG Jianzhong, GUO Chunjing Journal of Agriculture    2024, 14 (8): 24-29.   DOI: 10.11923/j.issn.2095-4050.cjas2023-0155 Abstract + (138)    HTML (4)    PDF (1179KB) (132)       Knowledge map    To clarify the use of plant growth regulators in peanut production, we collected statistics on the types of regulators currently valid for registration in peanuts by querying the China Pesticide Information Network, and inquired about the maximum residue limits and detection methods of regulators in peanuts in the national food safety standard Maximum Residue Limits of Pesticides in Food (GB 2763—2021). The toxicity of regulators mainly used in peanut productionwas analyzed to provide opinions and suggestions for the formulation and revision of relevant standards in the next step. And it also provided reference for the high-quality development of the peanut industry’s export earnings, enhanced the international competitiveness of China’s peanut industry, and ensured the healthy and sustainable development of China’s peanut industry.

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  Impacts of Climate Change on Yield of Pear Trees in Tianshui of Gansu Province in Recent 40a LIU Liang, XU Yunkai, LI Lin, JIA Bin, LI Hongwei Journal of Agriculture    2024, 14 (7): 89-93.   DOI: 10.11923/j.issn.2095-4050.cjas2023-0099 Abstract + (136)    HTML (7)    PDF (1385KB) (115)       Knowledge map    Tianshui City of Gansu Province has become a pear fruit production base in the dry and cold region of northern China, due to its location in the hinterland of the Loess Plateau in central Gansu, with abundant light and heat, and deep soil layers. Affected by global climate change, the harm of meteorological disasters in Tianshui has significantly increased. Due to the tall height, early flowering period and long growth cycle of pear trees, their growth, development, and yield are more susceptible to the impact of climate change. In order to understand the impact of climate change on the total yield of pear trees, using statistical methods, this study analyzed the main agrometeorological conditions influencing pear tree yield in Tianshui over the past 40 years. The study identified the significant agrometeorological factors affecting pear yields such as the precipitation in early autumn (the last ten days of September), average temperature in mid-spring (the first ten days of April), and sunshine hours in late spring (the first ten days and middle ten days of May). Additionally, the substantial increase in temperatures during autumn and winter, coupled with early spring arid conditions, exacerbated nutrient depletion in fruit trees and hindered the normal development of flower buds, thereby impacting pear tree yields. The study results provide a decision-making support for effective utilization of climate resources and development of industrial layouts in fruit tree production and management departments.

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  Evaluation of Control Efficiency of Insecticides Against Bemisia tabaci of Facility Tomato JIAO Yuxia, CAO Zeng, ZUO Xiufeng, WANG Xianghui, HU Yinghua Journal of Agriculture    2024, 14 (6): 1-4.   DOI: 10.11923/j.issn.2095-4050.cjas2023-0273 Abstract + (135)    HTML (10)    PDF (1217KB) (96)       Knowledge map    To screen the highly control insecticides against Bemisia tabaci of facility tomato, six insecticides were selected to test by spraying method in this study, and the control efficiency of different insecticides against Bemisia tabaci and yield of tomato were investigated and compared. The results showed that all the insecticides had the inhibitory effects against Bemisia tabaci, among which 22.4% spirotetramat SC and 22% sulfoxaflor SC exhibited the better control efficiency. After 7 days of application, their control efficiency exceeded 84%, which was 30% higher than the yield of CK. These two insecticides had no adverse impacts on crops and environment, which were suggested to be used alternately in production to achieve effective prevention and control purposes.

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  Current Situation, Dilemma and Way out of the Protection of Livestock and Poultry Genetic Resources in China YANG Yuying, HE Shanshan, WANG Yubin Journal of Agriculture    2024, 14 (8): 44-48.   DOI: 10.11923/j.issn.2095-4050.cjas2023-0174 Abstract + (135)    HTML (4)    PDF (1112KB) (62)       Knowledge map    In order to explore the effective way to realize the protection of livestock and poultry genetic resources in China, the current situation of the protection of livestock and poultry genetic resources was systematically sorted out, and the realistic difficulties faced by the protection were deeply analyzed. The results show that, at present, the number of protected varieties has been increasing, regulations and policies have been improved, protected areas, seed conservation farms and gene banks have begun to take shape, and the quality of the workforce has been improved. However, it is also faced with the dilemma of not digging deep into the characteristics of resources, and the disconnection between protection and exploitation; the weak support of regulations and policies, and the lack of linkage in the management system; the obsolete facilities in the protected areas, conservation farms and gene banks, and the outdated protection technology; the insufficient financial support, and the single channel of investment. Based on this, the following countermeasures and suggestions are put forward: strengthen the depth mining of resources, improve the level of development and utilization; establish and improve laws and regulations, integrate departmental management resources; strengthen the guidance of fiscal funds and establish a diversified investment and financing system; continue to promote the development and construction of seed conservation farms, protected areas and gene banks.

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  Bibliometric Analysis of Research Progress of Leguminivora glycinivorella LI Xiaofeng, ZOU Jingzhu, HAN Zixin, DING Ning, SHI Shusen, CUI Juan, GAO Yu Journal of Agriculture    2024, 14 (7): 81-88.   DOI: 10.11923/j.issn.2095-4050.cjas2023-0144 Abstract + (130)    HTML (7)    PDF (1644KB) (108)       Knowledge map    The bibliometric analysis was conducted to analyze the research progresses and development trend in the field of Leguminivora glycinivorella using knowledge map analysis and visual analysis based on the literature published from Jul. 1955 to Jun. 2023 and recorded in the database of the China National Knowledge Infrastructure (CNKI) and five databases of Web of Science. There were 383 papers on L. glycinivorella published in 125 journals at home and abroad, and the researchers were from 294 research institutions of 8 countries or regions. The results showed that the total number of publications on L. glycinivorella kept increasing, and an explosive increase occurred during the 21st century. Heilongjiang Academy of Agricultural Sciences had the most published papers among research institutions. Keywords in CNKI included control effect, occurrence regularity, soybean varieties, DDVP and Trichogramma, while keyword in Web of Science included identification and expression of resistance genes, transgenic soybean, Trichogramma and sex pheromone. Up to now, the researches are mainly involved in the fields of applied entomology, physiology and biochemistry, biology and ecology. Research hotspots on L. glycinivorella in China were closely related to its integrated control technology and screening of insect-resistant varieties. However, research hotspots in foreign countries were closely related to the genetic expression of L. glycinivorella. The bibliometric analysis results could help relevant researchers to quickly understand the current research status in this field. Targeting the current hot issues and weak links in L. glycinivorella, we can select the right research direction to develop more effective technical measures on the control of L. glycinivorella.

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  Safety Risk Assessment of Pesticide Residues in Edible Fungi and Dietary Exposure Risk Assessment WEN Yajun, XIAO Zhiyong, SUN Zhiwei, LIU Xiyan, ZHAO Yuan, WANG Quanhong Journal of Agriculture    2024, 14 (4): 77-82.   DOI: 10.11923/j.issn.2095-4050.cjas2023-0118 Abstract + (129)    HTML (5)    PDF (1253KB) (167)       Knowledge map    In order to master the quality and safety of edible fungi, the levels of 62 kinds of pesticide residues in edible fungi sold in Beijing from 2021 to 2022 were screened, the pesticide residues of insecticides and fungicides in 6 common edible fungi were evaluated by food safety index method, and the risk of chronic and acute dietary intake of 19 pesticides were also evaluated. The results showed that the IFS values of 15 insecticides and 4 fungicides detected in edible fungi and the average food safety index values of 6 edible fungi were all less than 100. The pesticide residues detected had little influence on the edible fungi, and the six edible fungi were in a good state of safety, the risk of chronic dietary intake and the risk of acute dietary intake of 19 detected pesticide residues in edible fungi were both lower than 100%, and the risk of both chronic and acute dietary intake were lower. However, the risk values of dietary intakes of two pesticides, cyromazine and emamectin benzoate, were relatively high among the 19 pesticides detected. Therefore, it is necessary to strengthen the supervision of the use of cyromazine and emamectin benzoate in edible fungi to ensure the quality and safety of edible fungi products.

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  Evaluation of High-quality Development of Vegetable Industry and Analysis of Its Influencing Factors LIANG Weisen, CHU Xialing, CHEN Junqiu Journal of Agriculture    2024, 14 (6): 83-92.   DOI: 10.11923/j.issn.2095-4050.cjas2023-0109 Abstract + (128)    HTML (2)    PDF (1289KB) (116)       Knowledge map    The vegetable industry is important for rural industrial revitalization, and its high-quality development is an important support for the Chinese path to agricultural modernization. Based on the new development concept, we selected indicators from the five dimensions of "innovation, coordination, greenness, openness and sharing" to construct an evaluation system for the high-quality development of vegetable industry. Additionally, an empirical model was constructed to analyze the influencing factors with a data sample of almost all provinces in China (except Tibet) from 2015-2020. The results showed that: (1) the level of high-quality development of China's vegetable industry in the 13th Five-Year Plan period had gradually increased, with the indices of sharing, innovation, green and coordination dimensions all increasing to different degrees, while the openness dimension had slightly declined. (2) Shandong and Jiangsu were in the high level of quality development of vegetable industry, 7 provinces such as Hebei and Henan were in the middle and high level, and over 20 provinces were in the middle and below level. (3) In terms of production areas, the order from large to small was the Huanghuaihai and Bohai rim region > Yangtze River region > Northeast region > Northwest region > South China region > Southwest region. (4) Regional economic development, industrial upgrading and agriculture-related loans had significant positive impacts on the high-quality development of vegetable industry, while agricultural insurance had a negative impact, and digital economy and environmental regulation had different significant impacts on their dimensional levels. It is recommended to optimize the layout of the vegetable industry, unblock the distribution channels of products, promote moderate scale operation, and increase industrial and security efforts.