China is the world’s largest producer of vegetables，with vegetables being the primary export category of Chinese agricultural products，accounting for 16.157% of agricultural exports in 2022．In the context of the RCEP agreement’s signing and implementation，it is highly significant to explore the status and potential of China’s vegetable trade with its partners to deepen the positive eff ects of exports and enhance the international competitiveness of Chinese vegetables．The study utilizes panel data of China’s vegetable export trade to RCEP partners from 2006 to 2022，constructs a stochastic frontier gravity model and a trade inefficiency model，empirically analyzes China’s trade efficiency and its influencing factors with respect to RCEP partners，and measures the export potential of each country．The results indicate that the economic level，population size，economic disparity，vegetable yields，and trade environment of China and RCEP partners significantly impact vegetable exports．The rule of law，economic institutional environment，and infrastructure level of RCEP partners positively infl uence the effi ciency of vegetable exports．However，the level of integrity in export destinations and improvements in government effi ciency，conversely，negatively aff ect trade effi ciency．The average effi ciency of China’s vegetable exports to RCEP partners over the years is 0.667，though there are signifi cant diff erences among the countries within the RCEP partnership．China should continue to enhance the quality of its vegetable exports，expedite the implementation of the RCEP agreement，and further expand the depth and breadth of its cooperation with RCEP partners to reduce trade resistance and promote the continued growth of vegetable export volumes.

Abstract：In 2024，the general market prices of vegetables predominantly adhered to the typical pattern of annual seasonal fluctuations．Nevertheless，during the summer-autumn periods，the prices tended to operate at relatively elevated levels．Owing to the impact of unfavorable weather conditions and their sustained eff ects，it is anticipated that the upward trajectory of vegetable prices in the current winter and the forthcoming spring will be less steep compared to previous years，with a potentially longer duration of the price-increasing cycle．Taking into account the fact that the overall vegetable prices were on the higher side in 2024 and the acreage under cultivation has increased year-on-year，it is projected that the overall supply of vegetables in the spring of 2025 will be ensured．

In recent years，China’s facility vegetable industry has developed rapidly．Application of modern agricultural technologies including facilities construction，water-saving irrigation，water-fertilizer integration，light and simplified cultivation，green prevention and control，etc．has promoted the healthy and rapid development of facility vegetable industry．However，the overall level of facility vegetables is still not high．There existed problems as poor facilities，low degree of mechanization，low utilization rate of production materials，backward cultivation and management technology，and insufficient intelligent application，etc．China’s facility vegetable development should focus on development of facility vegetable’s germplasm resources，optimization of facility structure and equipment’s modernization，intellectualization of environment regulation，greenization of plant diseases and insect pestscontrol，modernization of production management，optimization and diversification of facility vegetables，multi-format integration and high efficiency，and expansion of facility vegetable space，etc．directions；so as to promote high-quality development of China’s facility vegetable industry．

From 2022 to the first half of 2023，vegetable mechanization of China had ushered in new development opportunities. The development of vegetable mechanization had attracted widespread attention，and shown an overall accelerated development trend. This article summarized the new breakthroughs of vegetable mechanization technology in the research and development of equipment for key links such as vegetable transplanting and harvesting，the innovation of typical vegetable mechanization models，and the exploration of intelligent technology for vegetable production. It also outlined the new progress of vegetable mechanization in demonstration and promotion，integration of agricultural machinery and agronomy，and practical application. However，there is still a big gap between the development of vegetable mechanization and the high-quality development of the vegetable industry. To this end，it is recommended to accelerate the development of vegetable mechanization from four levels：integrated guiding goals，integrated integration measures，integrated complete sets of equipment，and integrated service entities.

Abstract：In order to clarify the quality characteristics of screw pepper，the fl avor quality related indexes（types and contents of capsaicinoids，volatile compounds，etc）and some other quality indexes of smoothskinned pepper‘Sujiao No.9’（S9，as control）and 9 varieties of screw pepper fruits（green ripening stage） were determined，and comprehensive evaluation was conducted using membership function and principal component analysis（PCA）methods．The results showed that the capsaicinoids content of screw pepper varied，with the spiciness level of 7-8．A total of 222 volatile compounds were detected in 10 varieties of pepper，among which screw peppers were 28-62 more than smooth-skinned pepper（S9）and the average content was 55.19% higher．The main aroma types of screw pepper were green，floral and aldehydic，and the aroma-active compounds such as hexanal，（E）-2-Hexenal，octanal and 1-Octen-3-ol might be the key compounds to form the unique flavor of screw pepper．In addition，compared with smooth-skinned pepper S9，the fruit hardness of screw peppers were 36.44%-47.97% lower，and the vitamin C content were 17.09%-
95.47% higher．The comprehensive evaluation results showed that the fruit quality score ranking of screw pepper was higher than that of smooth-skinned pepper（S9）．Overall，screw pepper has the advantages of low hardness，high vitamin C content，rich volatile compounds and intense fl avor，and the fruit quality is better than smooth-skinned pepper．

Abstract：In order to establish a practical quality evaluation system for fresh edible cucumber，this study took 31 cucumber varieties collected from 3 ecological types as test materials，carried out fl avor sensory index evaluation，and combined with nutritional quality index，comprehensive evaluation was carried out by principal component analysis method．The results showed that：among the North China type cucumber varieties，the flavor sensory evaluation of‘Shuyancuiyu’was the best，the comprehensive score was 30.83；among the South China cucumber varieties，‘Tangshan autumn cucumber’ flavor sensory evaluation was the best，the comprehensive score was 30.50；among the European greenhouse cucumber varieties，‘Lvyuanxingfu’flavor had the best sensory evaluation，with a comprehensive score of 30.65．Five principal components were obtained by principal component analysis，covering 77.612% of the original information．The comprehensive scores of 31 cucumber varieties were obtained by establishing a comprehensive quality evaluation model F =0.315F1 + 0.265F2 + 0.163F3 + 0.145F4 + 0.112F5．The South China cucumber variety‘ Tiantianzhai’，the North China cucumber variety‘ Shuyancuiyu’，and the European greenhouse cucumber variety‘ Thumb fruit cucumber’，scored the highest among their respective ecological types，which can be used as diff erent types of fresh cucumber varieties for selection and application．The results of this study provided theoretical basis and technical support for variety selection and quality evaluation of fresh cucumber．

Vegetable is an important part of the ‘Vegetable Basket Project’．In 2023，the market price of vegetables basically conformed to the regularity of seasonal fluctuations throughout the year，with running at a high level，and the decline in vegetable prices in summer was not obvious as usual years．Affected by several cold-air outbreaks and compensatory rising factors，it is expected that the price of vegetables in winter and spring will rise significantly compared with previous years，and may remain high for a period of time after the Spring Festival．Considering that the overall price of vegetables in 2023 is high，the area in the field has increased than 2022，the supply of shelf-stable vegetables such as cabbage and radish exceeds demand，the vegetables in the northern facilities and the vegetables of ‘southern vegetables-northern transportation’ are on the market steadily，and the cold-air outbreak in some producing areas has been affected but the possibility of resuming supply is high，and it is expected that the supply of vegetables in the spring of 2024 will be generally guaranteed．Overall，in the context of loose total vegetable supply and optimal structure，it is recommended to accelerate the development of characteristic vegetables，optimize the layout of facility vegetables，promote green transformation，stabilize the supply chain，upgrade the industrial chain，and give full play to the important role of the vegetable industry in promoting rural revitalization．

In order to select tomato varieties with excellent quality and suitable for consumer demand，15 palatable tomato varieties were used as materials to determine the relevant indexes of fruit commercial quality and nutritional quality，and the comprehensive quality of each variety was evaluated and compared by using the method of the affiliation function，correlation analysis of genetic variations，principal component analysis and cluster analysis．The results showed that there were large differences in quality and taste among the varieties；genetic variation and correlation analysis showed that quality traits such as soluble sugar content，sugar-acid ratio，total phenolic content and tomato taste were closely related；the results obtained by using principal component analysis had a high degree of similarity with those obtained by manual tasting evaluation and analysis by the subordinate function method，and three varieties with better overall quality were selected by combining the subordinate function method and the principal component analysis method P124，P190 and P209，with high taste evaluation scores，high nutrient contents of lycopene，VC，flavonoids and total phenols，high soluble sugar content and suitable sugar-acid ratio，good taste and rich flavor，and good promotion value．

This study analyzed the current fertilization status and fertilization effects on major leafy vegetables in China based on literature. The rates of nitrogen，phosphorus，potassium recommendation and the fertilization effects including the relative yield，the yield increase，the yield increase rate，the yield response，and agronomic efficiency of nutrients were discussed. The limiting factors affecting leafy vegetable yield are mainly nitrogen，followed by potassium，and then phosphorus. Recommended fertilization in leafy vegetables reduced the amount of nitrogen and phosphorus fertilizer，increased the amount of potassium fertilizer，while increased the yield compared to conventional fertilization used by farmers. Therefore，suitable fertilizer recommendation method for leafy vegetables is an effective way to save fertilizer and improve efficiency.

China has become the second largest producer of sweet corn．According to driving factors and limiting factors for sweet corn industry development，combined with official data and market comprehensive analysis，the prediction for sweet corn cultivated area in China will increase to 383 000 hm² in 2026．The average annual growth rate（CAGR） will be 2.5%．In future，the planting ratio of high value sweet corn variety will gradually increase．According to market changing tendency，this paper classified the requirement details of varietal characters and cultivation characters by different market segments．This paper also put forward strategy and suggestions countering major problems and bottlenecks faced by development of sweet corn industry．

栽培技术不够统一、生产管理水平偏低成为制约甘肃省陇南市大叶芥菜产业发展的主要因素，当地通过对大叶芥菜生产的各个技术环节进行不断优化，使大叶芥菜商品率达到95%以上，每667 m2经济效益提高25%以上。

In order to thoroughly grasp the strategic position of China’s pepper industry in global market；study and judge the development trend of pepper industry；and crack the problems existing in industry，this paper analyzed the development situation and new trend facing the pepper industry by systematic and continuous on-site research and data retrieval，from the aspects of industry scale，international trade，price information，planting benefit and technical innovation．The results showed when the industrialization level of pepper was rapidly improving and consumer group was rapidly expanding，problems of unstable planting profit，impacting international market，and continuous rising of planting cost were needed by strong support in the following aspects of industrial policy，fine varieties promotion and improvement of mechanization level etc．

Aiming at the lack of stable and highly polymorphic SNP markers of peppers，KASP markers were designed at a spacing of 20 cM according to the correspondence between the high-density genetic map and the physical map of peppers，and a total of 234 pairs of KASP primers were designed．F2 isolated population screening was used to obtain 159 pairs of primers with polymorphism，and the success rate of labeling design was 67.9%．Using a group of 207 peppers from 14 introduction sites，the polymorphism and stability of primers were verified for high-throughput system transformation and labeling．The polymorphism of 141 selected markers was detected by high-throughput genotyping system，of which 130 KASP markers were successfully typed，with a success rate of 92%，and the number of markers with polymorphism in pepper materials varied from 24-129，and the corresponding polymorphism site percentage range was 18.46%-99.23%．A set of KASP markers containing 130 pepper KASP markers was developed and evenly distributed on the 12 chromosomes of peppers，and through the typing of 14 domestic pepper varieties from the source of introduction，it was proved that this set of marker polymorphisms is highly polymorphic and universal，and is suitable for high-throughput genotyping of pepper varieties.

Taking the new variety of‘eggplant 1055’ as test material，this paper explored the effects of paclobutrazol spraying concentrations and times of application on eggplant plant height，internode length and fruit characters under different cultivation modes.In spring at open fields，this experiment set up 6 spray concentrations（0 as CK，25，50，100，200，300 mg·L-1）and one spray frequency（3 times）altogether 6 treatments. In autumn at solar greenhouse，5 spray concentrations（0 as CK，25，50，100，150 mg·L-1）and 3 spray frequency（1，2，3 times）were set altogether 11 treatments. The results showed that under different environments paclobutrazol could all hold up the growth of eggplant plant.Along with the increase of paclobutrazol concentration and number of application times，plant height and internode length would gradually decrease. At the same time，paclobutrazol spraying would affect the development of eggplant fruit，increase fruit transverse diameter and decrease fruit longitudinal diameter. Along with time extension after spraying，the effect of paclobutrazol would gradually weaken. Comprehensive analysis about effects of paclobutrazol on eggplant plant architecture and fruit characters showed that 15 days after field planting，spraying paclobutrazol 50 mg·L-1 3 times in open field cultivation in spring，and spraying 25 mg · L-1 3 times in solar greenhouse cultivation in autumn with 7 days interval could effectively reduce eggplant plant height and internode length，maintain its fine fruit type and increase its single fruit weight.

旱塘甜瓜套种辣椒是甘肃河西地区推广的轻简化栽培新模式，利用机械做旱塘可比传统栽培技术提高劳动效率18倍，节约人工成本4500元·hm-2，节水300～400m3·hm-2，肥料利用率提高20百分点以上，目前已推广1500hm2（2.25万亩）。

Such protected structures as greenhouses provide good environmental conditions for vegetable growth and quality．To improve and build new-typed，high cost-effective protected structure combining both farm machines and techniques is the essential way to push forward the high-quality development of protected vegetables．In this article，we summarized the status quo of old-typed greenhouse and tunnel structures in northwestern，northern，northeastern and eastern China．We stated the different types of the commonly-built new single greenhouses，tunnels and multi-span greenhouses，the types of wall materials for greenhouses，heat preservation covering materials，and the types of energy utilization．We analyzed the major existing problems in the protected structures and environmental control of China’s vegetable growth． In this article we also proposed to choose the greenhouse designing structures according to regional environment，crop differences and the managing grower，and to integrate the new structures，new equipment and new materials in protected structure designing．We suggest that greenhouse transformation schemes be made so as to reduce the fund for building new greenhouse；that protected facilities with excellent performances be built under effective organization and with the leading of good policies，and that more projects and programs for technological breakthrough be approved to solve the key problems existing in protected structure designing and building．

In the context of a shift from quantitative expansion to a focus on quality in the cucumber industry，people are increasingly paying attention to the improvement of its quality．Cucumber has high yield with disease resistance and desirable fruit appearance as well as flavor has become an important goal of modern breeding．In this review，we systematically analyzed researches such as genetic analysis，gene mining，molecular markers created and valuation-utilization of high-quality germplasm resources on cucumber quality traits formation．Finally，prospects were made for further study on cucumber quality traits and the cultivation of high-quality cucumber varieties．

In order to screen out high-quality and multi-resistant pepper germplasms，this paper took 109 domestic and foreign pepper germplasms as test material；measured 6 traits of fruit quality；and identified whether they carried TMV resistant gene L4，Phytophthora capsici resistant gene CaPhyto，TSWV resistant gene Tsw and PVY resistant gene Pvr4. Then，the paper carried out comprehensive evaluation through genetic diversity analysis，correlation analysis，principal component analysis，cluster analysis and aggregated boosted tree（ABT）analysis. Results showed that the genetic diversities of 109 pepper germplasms were abundant，and coefficient of variation ranged from 24.51%-123.52%. Among them β-carotene content showed maximum variation degree. ABT analysis also indicated that capsanthin had the greatest influence on indexes determined by colorimeter，followed by lutein and that of β-carotene was minimum. The resistance molecular markers had identified 8 accessions carrying L4 gene，23 carrying CaPhyto gene and 1 carrying Pvr4 gene. The principal component analysis and cluster analysis showed that 109 pepper germplasms could be divided into 3 groups.The quality indexes of group I and group II were all relatively excellent. Finally，9 germplasms with both good quality and resistance were screened out.

Abstract：The watermelon industry in Laos developed by relying on Chinese production technologyand Chinese market，is a representative of agricultural cooperation between China and ASEAN under ‘theBelt and Road’ background．The climate of Laos is conducive to watermelon cultivation in early spring．Itcan better fill the supply gap of early spring watermelon in China．The total cost of watermelon production inLaos is about 18 000-39 000 yuan · hm-2 lower than those in similar climate areas in China，such as Hainan．The opening of China-Laos railway also reduces the cost of transporting watermelon in Laos，and shorten thetransportation time．At the same time，watermelon production in Laos has backward cultivation technique andthere are fewer melon industrial parks．With the influx of resources from China，including talents，superiorvarieties，good law and fund，and‘the Belt and Road’channel construction continuous to develop to the Zhongxialiao Plain area．A perfect watermelon industry chain will be established to promote the developmentof watermelon industry in Laos．

Late blight caused by Phytophthora infestans is a most devastating oomycete disease of potato．It occurs all year round in many potato growing areas in China and is one of the main factors causing economic loss of potato industry．The factors affecting the growth and pathogenicity of P. infestans in potato include climatic conditions，cultivation management，host resistance，etc.，among which climatic conditions are most important．Therefore，this paper reviews the impacts of main climatic factors such as temperature，light，humidity，carbon dioxide concentration on P. infestans and future prospects additional research in order to provide useful guidance for integrated late blight management．

In the context of building a trade power,this paper integrates multi-platform data such as the National Bureau of Statistics,the Ministry of Agriculture and Rural Affairs,and China Customs．Based on the current situation of import and export trade,this paper explores the main factors influencing China's international vegetable trade from the aspects of emergencies,export tariffs,green barriers and extreme weather．Policy suggestions for expanding export trade are put forward from four aspects,namely,the optimization of vegetable varieties,the construction and layout of export bases,breakthroughs and innovations in technological bottlenecks,and the overall planning of both domestic and international markets as well as two kinds of resources.

In order to explore the prevention and control effect of oligosaccharide · chain protein and thiamethoxam combination on tomato yellow leaf curl virus disease，field experiment about controlling tomato yellow leaf curl virus disease was carried out by selecting and using 6% oligosaccharides · chain protein WP，25% thiamethoxam WG and 6% oligosaccharides · chain protein WP + 25% thiamethoxam WG．The results showed that root-irrigation of 25% thiamethoxam WG could significantly reduce the population of Bemisia tabaci，root-irrigatioon treatment of 6% oligosaccharides · chain protein WP + 25% thiamethoxam WG had the best effect．The morbidity and disease index of tomato yellow leaf curl virus were significantly lower than that of the contrast．The control effect was 74.25%．The plant height，leaf length，leaf width，SPAD value，nitrogen content，net photosynthetic rate of leaves（Pn）and yield of tomato were all significantly higher than those of the contrast，increasing by 52.82%．In conclusion，the combined use of 6% oligosaccharides chain protein WP and 25% thiamethoxam WG can effectively prevent and control tomato yellow leaf curl virus disease and ocurrence of bemisia tabaci；and achieve the purpose of increasing yield and efficiency．

The Chinese potato market in 2023 has 3 significant characteristics：high potato price in early stage，year-on-year price on the lower side in later stage，and annual prices at their highest in nearly 10 years，etc. It is expected that the potato market prices in 2024 will be generally lower than that in 2023. At present，there are still existed problems noteworthy in China’s potato industry，including unbalanced industrial development，urgent improvement of processing level and insufficient protection of regional public brands，etc.In order to further promote the upgrading of China’s potato industry，it is suggested that local governments of various regions to implement targeted support policies，accelerate the in-depth development of whole industrial chain，and strengthen protection of regional public brands.

Henan is a big province in vegetable production and marketing．Its planting area and output rank first in the country，but the development of vegetable seed industry is insufficient．The proportion of local varieties is too small，which has become the short board of Henan vegetable industry．This paper reviewed the development actuality of Henan vegetable seed industry from the aspects of planting scale，scientific research basis，private seed industry and host exhibition，etc．；put forward problems existing in Henan seed industry，including technical bottlenecks in breeding，imperfect collaborative innovation in science and enterprise，lacking of original varieties，etc.；and comprehensively came up with the countermeasures from perspectives as establishing the fusion mechanism of science and enterprise，strengthening scientific and technological innovation in seed industry，etc.，so as to make the vegetable seed industry in Henan Province bigger and stronger for sustainable development．

To select tomato varieties and breeding material suitable for local cultivation and with high yield and superior quality，this paper conducted variation analysis，correlation analysis，principal component analysis and cluster analysis on agronomic characters of 50 tomato varieties．The results showed that the coefficients of variation of 23 agronomic traits in 50 of tomato materials ranged from 0%-103%，exhibiting relatively rich variation．Correlation with different degrees was existed between different traits．The single fruit weight was very significantly positively correlated with maturity，leaf length，leaf width，first node inflorescence，fruit transverse diameter，fruit longitudinal diameter，and yield per plant．There was significantly negative relationship between soluble solid content with maturity，first node inflorescence，single fruit quality，fruit transverse diameter，fruit longitudinal diameter，and yield per plant．The principal component analysis simplified the 23 agronomic traits into 6 principal components，respectively reflecting fruit development characteristics，fruit color before ripening，pollination and fertilization characteristics，fruit quality characters，fruit shape characters，inflorescence type characteristics and fruit color and quality characteristics．Furthermore，comprehensive evaluation was carried out using principal component score，and 10 excellent tomato varieties were screened out．Character specialties of these 10 excellent tomato varieties were analyzed through two-dimensional distribution map．Cluster analysis divided 50 materials into 6 groups．Among them，tomato varieties in group I performed well in yield and quality．Nine of the 10 varieties screened out through comprehensive evaluation were belonged to group I，indicating the comprehensive evaluation was basically consistent with the objective facts．

A Genome-wide association study（GWAS）is a population-level statistical analysis of genotype and observable traits（i.e.，phenotypes），which provides research ideas for revealing the genetic mechanisms of complex agronomic traits in crops by screening the genetic variants that can affect the trait through statistical quantities or P-values．At present，GWAS has been widely used in crop genetics and breeding．This paper mainly expounds the application progress of GWAS in the agronomic traits quality and resistance of pepper；explores and prospects the existing problems．In order to provide a theoretical basis and reference for the future use of GWAS for the genetic basis of pepper agronomic and quality traits as well as molecular marker-assisted breeding．

In order to further improve the light and temperature performance of Chinese solar greenhouse，and enable the over winter vegetable production in areas north of 50° N with extreme temperature below -40 ℃，yet having no auxiliary heating，this paper proposed a ‘double film-double blanket-double chamber’（D-FBC）high insulation greenhouse after reserch innovation．The lighting roof angle of the greenhouse reached 53.82°，and horizontal projection ratio of front and rear roofs was less than 1∶1．The overall lighting and insulation capacity of the greenhouse were significantly improved．At the same time，the supporting greenhouse basic insulation + lighting surface ‘double film-double blanket-double chamber’thermal insulation + back wall water column passive heat storage + gas water heat exchange ground soil active heat storage and release system all had helped maintaining the greenhouse indoor temperature above 9 ℃，even when the outdoor extreme temperatures was below -48 ℃．Thus，safe over winter vegetable production in Tahe County，Heilongjiang Province，at 52° north latitude was successfully realized．

In order to clarify the genetic rule of peduncle length of tomato，the four generation populations of P1，P2，F1 and F2 were established from the cultivated variety ‘Ailsa Craig’（AC）with short peduncle length and Solanum lycopersicoides LA1964 with long peduncle length．The major genes and multiple genes mixed genetic model were used to estimate the genetic parameters of tomato peduncle length of the second，third and fourth inflorescences．The results showed that the total peduncle length，anterior peduncle length and posterior peduncle length of the second and third inflorescences were consistent with the MX2-ADI-AD model．But the optimal genetic model for the fourth inflorescence length of total peduncle，anterior peduncle and posterior peduncle was the model of MX2-ADI-ADI．These data indicated that the peduncle length of tomato was controlled by two pairs of dditive-dominant-epistasis major genes + polygenes．It was preliminarily judged that the epistasis effect of polygenes was different due to temperature changes，and the heritability of major genes was 46.61%-77.08%，The heritabilities of polygenes were all 0．These results indicated that the inheritance of major genes played a leading role in the genetic rule of peduncle length of tomato．

Through investigation on the total quantity and type of facility agriculture in 13 districts of Beijing，facility distribution and utilization，industry situation of facility agriculture etc．，this paper specified that the old greenhouses in Beijing were large in quantity and wide in scope，its productive capacity needed further improvement．The facility development was restricted by land use，organization degree was low，and key technology still needed to be improved．The authors suggested to make classify transformation；do largescale，machine-friendly and intelligent upgrading；cultivate different types of social service organization；drive facility upstream & downstream industries developing together；and make up the shortcomings of agricultural technology extension system after grassroots extension system reformation．Efforts should be made from the aspects of breeding important varieties，studying and developing disease and pest control strategies and products in new cultivation modes，integrated promoting intelligent irrigation and fertilization technology，so as to realize the specialization of prenatal varieties，facility assembly，automation of environmental control and production mechanization during production process，and standardization of post-production products and intelligent management．

普通大蓟马体型微小、世代周期短、繁殖力高、为害隐蔽，化学农药防治难度大，目前其为害呈持续扩张趋势，是我国南方地区蔬菜上的主要害虫。了解普通大蓟马不同虫态的形态特征、为害特点、发生规律，有助于该害虫的田间识别和综合防治。

In order to investigate the effects of exogenous EBR and ALA on over-summer growth of chilli seedlings under high-temperature stress，this experiment took 2 chilli varieties‘Bolahongniu’and ‘Changyanqingxiang’，as test material，and sprayed different concentrations EBR（0.001，0.01，0.1，and 1.0 mg · L^-1）and ALA（15，30，45，and 60 mg · L^-1）. The results showed that exogenous EBR and
ALA all could enhance seedling ability of resisting high-temperature adversity to different extent. After spraying different concentrations of EBR and ALA，the growth indexes of chilli seedlings including plant height，stemthickness，dry and fresh mass，and sound seedling index，etc. all showed an upward trend. The activities of antioxidant enzymes as SOD，POD，and CAT were strengthened. The content of MDA was reduced.The contents of proline，soluble sugar，and soluble protein were increased. The activities of key nitrogen metabolism enzymes like NR，NiR，GS，etc. were significantly enhanced. The treatment of 0.01 mg · L^-1 EBR and 45 mg · L^-1 ALA had the best effect on relieving high-temperature stress.

‘Longshu No.22’is a new potato variety through sexual hybridization，selection and identification with‘Longshu No.7’as female parent and‘L0527-4’as male parent．It is of late maturity．The growth period is about 125 days，the plant with 75-80 cm high，green stems and leaves is semi erect．The corolla with white and nearly pentagonal is large．The tuber with yellow skin and yellow flesh，and shallow eyes is oval shape．The dry matter content is 265.7 g · kg^-1，starch content is 197.3 g · kg^-1．The weight of single tubers was about 113.7 g，the proportion of large and medium tubers was more than 80%．The yield is about 28.5 t · hm^-2．This resistance of field to late blight and mosaic virus disease was similar to that of the control‘Longshu No.6’．It is suitable for planting in high cold and damp area，semi-arid region of Gansu Province．

Plant architecture is a significant factor affecting yield and cost input in agricultural production．Mapping QTLs related to plant architecture in cucumber will provide essential reference for genetic improvement of cucumber architecture．In this work，129 recombinant inbred lines which originated from a narrow-cross between cucumber cultivar‘Xintaimici’and wild cucumber‘PI183967’was constructed，and phenotypic investigation related to cucumber architecture was also conducted．At the same time，genetic linkage map was constructed based on resequencing data of parents and recombinant inbred lines，and then QTL mapping analysis related cucumber architecture was performed．The results indicated that the genetic linkage map containing 598 bin markers was constructed，the genetic linkage map’s overall distance is 1 353 cM，and the average physical distance between two bin markers is 352.8 kb．QTL mapping analysis for plant height，internode length，internode number，branch number and Stem diameter was conducted．A total of 7 QTLs were detected，including 2 QTLs for plant height，2 QTLs for internode length，1 QTL for internode number，1 QTL for branch number and 1 QTL for stem diameter．Nine causative genes preliminarily were filtered and predicted by the annotated data and literature．

Superior variety is the foundation for high-quality development of potato industry. This paper reviewed the basic research， breeding objectives，current registration status and replacement situation in potato；analyzed the problems of lacking breakthrough varieties，poor disease resistant varieties and insufficient innovation momentum，etc.；and put forward measures and suggestions including increasing protection of germplasm resources，strengthening variety registration，supporting seed industry enterprises and intensifying display evaluation，etc.，so as to deeply implement seed industry revitalization action，push forward highquality development of potato industry，and provide reference for helping all-round rural revitalization in poverty-striken areas.

大球盖菇—豆丹综合种养技术是连云港地区探索的“一地种养双收”新模式，每667m2纯收益达3.76万～7.44万元，目前产品已经成功进入京津冀、长三角等地大中型城市市场。

‘Qujiao No.5’is a new early maturing pepper F1 hybrid，which is inbred line‘Jin5-8’as the female parent and‘Y802’as male parent．Its first flower sets on the 9-10th node．The plant has strong growth vigor．It has the strong continuous fruit-bearing ability．The plant height is about 75 cm．The green mature fruit is yellow white in color and matured one is red．The single fresh fruit is horn-shaped and nice gloss，about 21 cm in length，2.2 cm in width，24 g in weight and 0.2 cm in thickness of fruit fresh．Its capsaicin content is 98.3 mg · kg-1，vitamin C content was 520.0 mg · kg-1，and the total amino acid amount was 0.80%．The resistance to anthracnose was stronger than that of the control‘Qujiao No.1’in the field，and similar to the control of the resistance to cucumber mosaic virus（CMV），tobacco mosaic virus（TMV）and Phytophthora blight．The average yield is about 37.5 t · hm-2．It is suitable for protected cultivation in Zhejiang Province and similar areas．

This study aimed to identify strains of the tomato spotted wilt virus（TSWV）infecting peppers in Guizhou，and establish rapid detection techniques，specifically TSWV loop-mediated isothermal amplification（LAMP）．We collected Twelve pepper samples suspected of TSWV infection and ten samples of Western flower thrips from major pepper-producing regions in Guizhou Province．These samples were analyzed
using RT-PCR，LAMP detection techniques and hylogenetic tree construction based on TSWV-N genes．Molecular diagnosis and sequencing results confirmed the presence of TSWV in the suspected pepper samples．Additionally，he pathogenic isolates of TSWV in peppers from the Xifeng area of Guizhou exhibited a striking 99% similarity to Guizhou tomato TSWV-N isolates．Building upon these findings，a TSWV rapid detection
system for pepper crops and the vector Thrips occidentalis was successfully established，providing strong support for the monitoring and control of pepper virus diseases in Guizhou．

Highland summer vegetable is mainly supplying the demand of southeastern coastal areas for vegetable in summer．It is produced by using cold and cool climate conditions．Agricultural insurance for highland summer vegetable can not only effectively protect the economic benefit of agricultural business entities，but also is an important measure for innovative development of agricultural insurance．This paper summarized the existing problems directing at Gansu highland summer vegetable industry development，risks faced，implementation process of agricultural insurance，and application effect．The paper mainly analyzed the following issues confronting agricultural insurance practice：insufficient insurance propaganda and promotion，government power lack of constraint，imprecise product development，mismatching financial subsidies and industrial demand，etc．The paper put forward measures and suggestions，including accelerating the enactment of agricultural insurance law，optimizing the insurance products development and design，establishing financial flexible subsidy mechanisms，and attaching importance to basic research of agricultural insurance，etc．，so as to effectively solve the natural risks caused by low temperature，drought，hail，and flood arising in Gansu highland summer vegetable production；and resolve market risk caused by product homogeneity and centralization of time to market．Thus，the basic position and function of agriculture in national economy was strongly stabilized．

‘Jingyanlvjian’is a new few spines type cucumber F1 hybrid developed by crossing‘CLK39’as maternal parent and‘SQ971K40’as paternal parent．It is of medium and early maturity．The first female flower sets at the 5-7th node．Its fruit is about 24-26 cm in length with straight and rodlike shape，glossy green peel，little pericarp wax，small warts and few spines．Its fruit flesh is light green，sweet and crispy with good quality．The plant has strong growth vigor and fruits primarily set on the main stem．It is resistant to downy mildew and mid-resistant to Cucumber mosaic virus（CMV）．It is tolerant to low temperature and weak light．In overwinter greenhouse cultivation its yield can reach 165 t · hm-2．It is suitable to be cultivated in overwinter and spring greenhouses and under spring plastic tunnels in areas of Northern China．

Abstract：In the past 10 years，planting areas and outputs of vegetable in China have increased year byyear．Consumer demand also has risen significantly．The aggregate supply and total demand are basically inbalance，and market operation is generally stable．The operation of vegetable market has 5 characteristics，including seasonal fluctuation and origin conversion，etc．In 2023，vegetable market production and sales inChina are flourishing．The market price is running at a high level．The whole year average wholesale priceall over China for 28 kinds of vegetable，key monitored by the Ministry of Agriculture and Rural Affairs is thehighest during the past 10 years．Looking forward to 2024，vegetable aggregate supply and total demand arebasically balanced with a slight balance．The vegetable market is mainly confronted with 5 risk points：climatechange，planting intention，production and marketing connection，etc． It is suggested that in future，theconstruction of‘ vegetable basket’，marketing at vegetable production areas，balanced listing，monitoring andearly warning，policies support，should be further strengthened，so as to strive for realizing a stable supplyand price and high quality development of the vegetable industry．