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2024 Vol.1 Issue.2,Published 2024-02-01
1 Status quo，Existing Problems and Countermeasure Suggestions for Transforming and Upgrading of Old Vegetable Facilities in China
BIEZhilong，WANGKejian，XIAHongyi，CAOKun，ZHOUZeyu Hot!
At present，China is accelerating the construction of modern facility agriculture，carryingforward the transformation and upgrading of old vegetable facilities，and promoting the high-qualitydevelopment of facility vegetable industry．But，the current situation and existing problems of the old facilitiesare not systematically sorted out．Systematic research on how to solve these difficulties facing transformation，and countermeasures to upgrade this work are still lacking．Through investigation on major facility vegetable production areas in China，this paper summarized the current situation and existing problems of old facilities；analyzed the main constraints for promoting transformation and upgrading；and put forward counter measures，including clear key work，optimizing facility structure，improving work mechanism，and strengtheningcondition guarantee，etc．
2024 Vol. 1 (2): 1-5 [Abstract] ( 79 ) [HTML 1KB] [ PDF 2003KB] ( 682 )
6 Research on Market Operation Trend of Vegetable Industry in China
AN Min，CAO Shanshan，SUN Wei，KONG Huixin，KONG Fantao*，LIU Jifang* Hot!
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．
2024 Vol. 1 (2): 6-13 [Abstract] ( 77 ) [HTML 1KB] [ PDF 2344KB] ( 667 )
14 Current Situation and Development Suggestions for Strawberry Water-saving Irrigation in Beijing
YUE Huanfang，ZHANG Xuemei，HU Xiaoyi，AN Shunwei，MENG Fanyu，ZONG Jing
Abstract：Based on the relevant research data collected from 85 strawberry grower households in 6 majorproducing areas of Beijing，the paper analyzed the irrigation water source，irrigation facilities，irrigationmanagement and application of water and fertilizer integrated technology．The results showed that the pHvalue of all irrigation water was greater than 7.0，and EC value was mainly 0.5-0.7 mS · cm-1，accounting for50%．All respondents adopted the water-saving irrigation technology，and usage rate of drip irrigation wasthe highest，accounting for 92.9%．The key impact factors for irrigation decision-making were soil moisturecontent（94.1%），weather conditions（63.5%），personal experience（58.8%），soil texture（42.4%），andsynchronization with other grower households（3.5%）．The average irrigation quantity in substrate cultureduring the whole strawberry growth period was greater than that in soil cultivation． They were 4 479 m3 · hm-2and 2 070.0 m3 · hm-2，respectively．There were various kinds of fertilization equipment，mainly includingVenturi fertilizer applicator（40.0%），electric sprayer（28.2%），pressure differential fertilizer pot（21.2%），fertilizer injection pump（17.7%），and water fertilizer integrated machine（11.8%）．Finally，this paper putforward some suggestions directing at water-saving facilities，irrigation system and technical training．
2024 Vol. 1 (2): 14-18 [Abstract] ( 44 ) [HTML 1KB] [ PDF 1691KB] ( 381 )
19 Studies and Prospects for Somatic Hybridization in Vegetable Crops
YANG Dongxu，LIU Yumei，HAN Fengqing，ZHANG Shuo，YANG Lin，LI Zhansheng Hot!
Abstract：Somatic hybridization is a technique，which can induce fusion of plant protoplasts fromdifferent species，genera or even families and then obtain regenerated plants by culture in vitro．As aneffective technology，protoplast fusion can overcome the physiological barriers to hybridization in traditionalbreeding，realize the recombination of nucleoplasmic genes between different materials，and transfer excellentgenes，create and obtain new germplasm containing target characters．At the same time，it can rapidly createmale sterile materials，and greatly shorten the breeding cycle．It is an effective means of crop breakthoughbreeding，and also a powerful tool for character improvement．The paper reviewed the development history，research and application areas of this technology on vegetables；summarized emphatically the researchprogress of protoplast separation regeneration and somatic cell hybridization in vegetable crops of Cruciferae，Solanaceae，and Apiaceae；looked forward the application prospect of somatic cell hybridization technologyin vegetable crops；and discussed the problems and countermeasures in application of this technology，so as toprovide reference for the wide application of somatic cell hybridization in vegetables．
2024 Vol. 1 (2): 19-31 [Abstract] ( 48 ) [HTML 1KB] [ PDF 2025KB] ( 449 )
32 Research Progress on Interaction Effect of Potassium and Magnesium in Potato
SHI Xiaohong，KONG Shuo，JIA Liguo，QIN Yonglin，FAN Mingshou，LIU Kun
Abstract：In view of the unreasonable application of potassium（K+）and magnesium（Mg2+）fertilizer inpotato production，as well as the unclear relationship between potassium and magnesium nutrient interaction．Based on the domestic and international researches，this manuscript systematically reviewed the effectsof potassium and magnesium interactions on growth and development，morphology，nutrient uptake andtransport，tuber yield and quality formation，which further analyzes the range of K+/Mg2+ratios in soil thatsuitable for potato growth．Further research trend of potassium and magnesium interactions for high quality，yield，and nutrient efficiency with synergistic enhancement is proposed in potato，which provides reference forthe reasonable application of potato potassium and magnesium fertilizer in potato production．
2024 Vol. 1 (2): 32-37 [Abstract] ( 44 ) [HTML 1KB] [ PDF 1857KB] ( 369 )
38 Genetic Analysis of Fruit and Leaf Shape Traits in the RIL Population of Peppers
CHEN Daqing，DAI Yunhua1MAO Lianzhen，SUN Hao，ZHOU Yao，LIU Zhoubin Hot!
Abatract：Recombiant inbred line（RIL）was constructed by combination between pod pepper D71and sweet pepper D72．This paper measured 9 characters of RIL population，including single fruit weight，fruit length，fruit shoulder width，fruit width，fruit hardness，pulp thickness，fruit stalk thickness，leafwidth and leaf length under 2 different growing environments and also analyzed their genetic rules．The resultsshowed that under 2 habitats the absolute values of skewness coefficient and kurtosis coefficient of majoritytraits were less than 1，indicating these traits had typical quantitative characteristics，and each population trait was affected by polygenic control．The average value of variation coefficient of each trait ranged from 16.73%-52.06%，in which the average value of variation coefficient of single fruit weight was the largest，being52.06%，while that of leaf length was minimum，only 16.73%．The range of heritability of population traitswas 42.03%-51.21%，of which there were significant or extremely significant positive correlations among manyfruit traits. While，there were significant or extremely significant negative correlations between fruit hardnessand the other traits．Under different growing environments，population trait expression under E1 was betterthan under E2. Analysis of variation phenomenon indicated that there was abundant genetic variation within thisRIL population．Heritability analysis showed that the fruit traits of pepper were influenced by the combinationeffect of genotype and environment type，and the influence of environment type was slightly higher than thatof genotype．The distribution of various characters of RIL population under these 2 growth environments allpresented normal or approximately normal. These characters were typical quantitative trait inheritance．Theabove results can provide reference for selective breeding of new pepper varieties．
2024 Vol. 1 (2): 38-45 [Abstract] ( 56 ) [HTML 1KB] [ PDF 2025KB] ( 439 )
46 Effect of Wetting Agent on Water Absorption and Retention of Nursery Substrate and Growth of Cucumber Plug Seedlings
ZHENG Xu，ZHANG Aiai，SHANG Qingmao* Hot!
Abstract：The characteristics of water absorption and retention in substrate can directly affect its moisturecontent and growth and development of vegetable plug-seedlings．In order to investigate the effect of wettingagent on water absorption and retention in substrate plug-seedling，this paper studied the effects of addingwetting agent on water absorption quantity，and evaporation rate of substrate with different particle sizes，andgrowth of cucumber plug-seedlings．The results showed that the water absorption rate and absorption quantityof small particle substrate were significantly lower than those of large particle substrate．Wetting agent wasmore conducive to increase the water absorption quantity of small particle substrate，equivalently to increase17.32 percentage points comparing with large particle substrate．Adding wetting agent had simultaneouslyincreased the water absorption and evaporation rates of plug-seedling substrate，and maintained a relatively high substrate moisture content throughout the 1，2 and 3 water absorption-evaporation processes．Addingwetting agent to substrate could effectively promote the growth and development of cucumber plug-seedlingsunder small particle size substrate conditions；and significantly improve the root shoot ratio and clumping rateof cucumber seedlings．The above results indicated that adding wetting agent to substrate could effectivelyimprove the characteristics of water absorption and retention of small particle size nursery substrates，and wasconducive for the formation of strong cucumber plug-seedlings．
2024 Vol. 1 (2): 46-50 [Abstract] ( 45 ) [HTML 1KB] [ PDF 2261KB] ( 372 )
51 Molecular Detection of Tomato Spotted Wilt Virus Infected Pepper in Guizhou
TIAN Yu，LI Chun，LI Yan*，WANG Lishuang*
Abstract：Tomato spotted wilt virus（TSWV）was identified by RT-PCR in suspected pepper virussamples collected from 6 regions in Guizhou Province，and the N gene sequences of TSWV in different regionswere amplified by molecular cloning．The results showed that TSWV were found in chilies from Guiyang，Anshun，Weng’an，Fuquan，Changshun and Huishui in Guizhou．After sequences aligning，the nucleotideand amino acid identities of the strains isolated from Guizhou were 95.6%-99.7% and 97.1%-100.0%，respectively．Phylogenetic tree analysis suggested that TSWV strains isolated from pepper in Fuquan，Huishuiand Changshun were closely related to those in Yunnan and Shandong．The TSWV strains isolated frompeppers in Anshun，Guiyang and Weng’an were relatively closed to the strains isolated from tomato，pepper，tobacco，celery and Herb of Spanish needles in Yunnan and lettuce in Jiangsu．The study indicated that therewere two TSWV lines in Guizhou pepper，which were certainly correlated with those isolates from varioushosts in different regions in China．
2024 Vol. 1 (2): 51-57 [Abstract] ( 47 ) [HTML 1KB] [ PDF 2718KB] ( 286 )
58 Identification of Pathogen of Leaf Black Stalk of Green Radish in Tianjin and Screening of Control Chemicals
BEN Haiyan1，HAO Yongjuan1*，HUO Jianfei1，YAO Yurong1，GAO Wei1，YU Jinping1，WANG Li3， WANG Wanli1，CHAI Ali2，LI Lei2，LI Baoju2*
Abstract：In recent years，the‘ black stalk disease’，a new symptom of radish，had become increasinglyserious in Tianjin．The purpose of this study was to accurately identify the pathogen，and carry out fungicidetoxicity test in lab for screening of high efficiency，low toxicity fungicide in the light of target pathogens．Inthis study，the occurrence of radish ‘black stalk’ in the field in Tianjin was investigated．The pathogen was identified by morphological，pathogenicity and molecular biology．Nineteen kinds of fungicides commonly usedfor bacterial control were selected for screening by the inhibition comparison and toxicity testing．The resultsshowed that the pathogenic bacteria causing the‘ black stem disease’ of local Weiqing radish were Xanthomonascampestris pv. campestris（Pam.）Dawson，which was a new symptom of radish black rot disease．Theisolated pathogenic strains exhibited pathogenicity differentiation，among which the highly pathogenic strainLB-B was selected．The results of laboratory toxicity test showed that there were 10 kinds of fungicides withdifferent effects of inhibition on radish black rot．Among them，0.3% tetramycin AS and 10% propylthiazole SChad the best inhibition effect on radish black rot，and their inhibition rates were above 89.52% at 1 000 mg · L-1concentration．The EC50 of 0.3% tetramycin AS and 10% propylthiazole SC were 156.69 mg · L-1 and 174.04mg · L-1，respectively，which showed the stable and the long duration of efficacy in the field．The aboveexperimental results provided candidate fungicide for effective control of radish black rot disease．
2024 Vol. 1 (2): 58-67 [Abstract] ( 44 ) [HTML 1KB] [ PDF 3556KB] ( 253 )
68 Identification and Infected Characteristics of Pathogens Causing Soft Rot on Konjac（Amorphophallus konjac）in Liupanshui
FENG Dao，HUANG Xianjin，LIU Yu，WU Linxiu，YAN Kai，LI Shujiang，FANG Yumei，GUO Li’na，CHEN Zhixia，ZHANG Xiaoyong*
Abstract：Soft rot is one of the most serious diseases in konjac cultivation．To clarify the species andinfection characteristics of pathogens causing konjac soft rot in Liupanshui area，16 pathogenic bacteriastrains were isolated on disease materials from seven production areas．Based on morphological，16S rDNAsequence and biochemical analysis，the strains were identified as Pectinobacterium aroidearum and Dickeyafangzhongdai．Notably，P. aroidearum was the primary pathogenic species with a isolation rate of 81.25%．Pathogenicity identification showed that the two pathogens infect the konjac petioles and leaves faster than thecorm，and both pathogens cause soft rot in tomato，sweet potato，carrot，pumpkin，potato and radish．The cultivation and infection conditions indicated that D. fangzhongdai and P. aroidearum were rapidly proliferated and infected konjac within the range of 28-35 ℃ and 20-30 ℃，and optimal growth and infection temperature were 30 ℃ and 28 ℃，respectively．
2024 Vol. 1 (2): 68-77 [Abstract] ( 32 ) [HTML 1KB] [ PDF 6093KB] ( 111 )
78 Effect of Adding Microbial Agent after Dazoment Fumigation Treatment on Fungal Diversity in Strawberry Continuous Cropping Soil
LI Yan，QI Lianfen，HOU Dashan，WANG Zifan，WANG Dandan，LIU Lihong，XIA Bing，SHI Jianhua
Abstract：In order to investigate the effect of adding different microbial agents on fungal diversity instrawberry continuous cropping soil after soil disinfection，this experiment set up 7 treatments after dazometfumigation，including T1（Trichoderma harzianum + Bacillus subtilis + Actinomycetes），T2（Trichodermaharzianum + Bacillus subtilis），T3（Trichoderma harzianum + Actinomycetes），T4（CK），T5（Bacillussubtilis），T6（Actinomycetes），and T7（Trichoderma harzianum）；and analyzed the soil fungal communityand its composition by high-throughput sequencing platform（Ⅰllumina HiSeq 2500）．The results indicated that applying microbial agents could increase fungal abundance，diversity and population quantity．Comparing withT4，single application of microbial agents in T5，T6 and T7 all could increase the species abundance of fungalcommunities．While，applying mixed microbial agents in T1 and T3 could increase species abundance，but T2could decrease species abundance．The application of different microbial agents after dazomet fumigation couldincrease soil fungal diversity．Comparing with the CK，soil fungal populations of other microbial agents wereincreased by 5.62%-57.54%，except T2，where the fungal population was decreased. In turns from highestto lowest were T6，T7，T3，T1，T5，and T2．After dazomet fumigation，the treatments of microbialagents containing Bacillus subtilis，Actinomycetes，and Trichoderma harzianum could significantly increasesoil fungal populations and speed up their recovery rate，especially the populations of beneficial bacteria likeLecanicillium，Cladorrhinum，Remersonia，and Aspergillus．In summary，after dazomet fumigation anddisinfection，adding microbial agents to strawberry continuous cropping soil is a scientifically effective methodfor rebuilding microbial community balance of cultivated soil and alleviating continuous cropping obstacles．
2024 Vol. 1 (2): 78-87 [Abstract] ( 33 ) [HTML 1KB] [ PDF 2118KB] ( 232 )
88 Effects of Different Angle and Height of Blue Sticky Cards on the Trap Efficacy of Tuta absoluta（Meyrick）
LI Hao，SHENG Chengfa，LI Yanhui，WU Jianhua，HUANG Zhiqiang，ZHAO Li，WANG Huimin，SHNEG Shimeng，WANG Shaoli*
Abstract：Tomato leaf miner〔Tuta absoluta（Meyrick）〕is an important invasive pest，which bringsserious threat to the tomato industry．To demonstrate the trap effects of different setting method of blue sticky cards on the captured number of T. absoluta，the experiments of trapping effects with different setting anglesand heights of blue sticky cards with sex pheromone lure were carried out．The results showed that both thedifferent angles and heights of the blue sticky cards had great effects on the numbers of trapped moths．Theaverage number of moths of blue sticky cards in flat was 1.438 times and 8.590 times，compared to that in45?-inclined to the ground and 90?-inclined（blue cards placed vertically on the ground），respectively；and thesignificant differences were both existed between the flatted and vertical，45?-inclined and vertical treatments．As for the different laying height，the average trapped moths in 0 cm treatment was 1.491 times and 2.485times，compared to the heights 30-35 cm and 60-65 cm，respectively，with a significant difference betweenthe height 0 cm and 60-65 cm treatments．Therefore，it is recommended that the blue sticky cards are placedhorizontally on the ground to get the higher trapping effects for T. absoluta in the field．
2024 Vol. 1 (2): 88-91 [Abstract] ( 30 ) [HTML 1KB] [ PDF 1871KB] ( 274 )
92 Control Effect of Paecilomyces variotii Extract Combined with Abamectin Against Tomato Root-Knot Nematode Disease
ZHANG Xiaoying，XU Yufei，WANG Hongfeng，SONG Wenyong，SHI Lei*，LIU Feng
Abstract：In order to determine the control potential of Paecilomyces variotii extract named ZNC againsttomato root-knot nematode disease，this paper conducted pot culture experiment and took water as the contrastto study the effects of applying ZNC（root-irrigation：0.5 or 1.0 μg per plant），abamectin（basal application：5 mg per plant）and their combinations on tomato growth and fruit quality，their control effects on rootknotnematode disease，respectively．The results showed that comparing with water treatment，ZNC couldsignificantly increase tomato root fresh weight and reduce root nodes number，at the same time significantlyincrease tomato leaf length and width，raise tomato plant height，above ground fresh weight，and promoteplant antioxidant capacity and fruit quality．The control effect of ZNC combined with abamectin against tomatoroot-knot nematode disease could reach 88.89%，significantly higher than that of applying abamectin alone．Meanwhile，tomato growth conditions and fruit quality were all got promoted．These facts indicated that ZNC could promote tomato growth，improve control effect against tomato root-knot nematode disease whencombined with abamectin．
2024 Vol. 1 (2): 92-99 [Abstract] ( 35 ) [HTML 1KB] [ PDF 2385KB] ( 275 )
100 Effects of Arbuscular Mycorrhizal Fungi on Tomato Growth and Root-Knot Nematode Disease
ZHOU Liyan，LU Jianzeng，HUANG Xinyi，SUN Zhaozhi，WU Fengzhi，GAO Danmei*
Abstract：To investigate the effects of arbuscular mycorrhizal fungi（AMF）on tomato plant growth andits inhibitory effect on root-knot nematodes，a greenhouse pot experiment was conducted．The Funneliformismosseae was inoculated in tomato seedlings along with second-stage juveniles of southern root-knotnematodes，while a control group without AMF inoculation was set up．The results showed that compared tothe control group，the aboveground fresh and dry mass of tomato seedlings significantly increased by 18.1%and 24.8%，respectively，after AMF inoculation．The disease index of root-knot nematode infection decreasedby 29.5%．The content of N，P，and K in plants increased by 6.9%，80.5%，and 63.0%，respectively．Additionally，soil ammonium nitrogen，nitrate nitrogen，available phosphorus，and available potassiumcontent increased by 6.8%，20.7%，8.1%，and 7.8% respectively after AMF inoculation．Overall，thesefindings demonstrate that AMF inoculation promotes tomato growth，suppresses the occurrence of root-knotnematode disease in tomatoes，and increases nutrient levels in both plants and soil．
2024 Vol. 1 (2): 100-105 [Abstract] ( 42 ) [HTML 1KB] [ PDF 0KB] ( 5 )
106 Analysis of Facility Vegetable Production in Beijing—An Study Based on Heterogeneous Farmers
YAN Haowei，MU Yueying*
Abstract：As the proportion of non-local farmers among suburban vegetable growers continues to increaseand the differentiation among farmers has intensified，it is of great significance to identify the characteristicsof vegetable production by local and non-local farmers in order to improve the capacity of vegetable emergencysupply in cities．Based on the survey data from 203 households in Beijing，analysed the productioncharacteristics of local and non-local farmers．The results show that the heterogeneity of the vegetableproduction of local and non-local farmers is evident and manifests itself in three aspects．First，factor inputs，mainly labor and land inputs rather than capital inputs．Second，technology promotion and adoption，mainlytechnology subsidies，technology training and the adoption of quality and safety-oriented technologies，ratherthan the adoption of yield-enhancing and environmentally friendly technologies．Third，cost benefits，mainlyemployment costs，rent costs and costs returns．The technology promotion，adoption and cost benefits of localfarmers are higher than those of non-local farmers，while the factor inputs of non-local farmers are significantly higher than those of local farmers．This indicates that non-local farmers’facility vegetable production reliesmainly on factor inputs rather than technology adoption，resulting in high costs and low benefits．Therefore，countermeasures were proposed：emphasize the cultivation of New Agricultural Business Entities，strengthenfinancial support，and accelerate the popularization and application of new technologies，so as to break theconstraints of facility vegetable production for both local and non-local farmers，and promote the overallimprovement of production capacity．
2024 Vol. 1 (2): 106-112 [Abstract] ( 45 ) [HTML 1KB] [ PDF 1741KB] ( 289 )
113 A New Pepper F1 Hybrid —‘Shouyanyangjiao 611’
WANG Chunhai1，ZHANG Hanming，ZHANG Haijuan，WEI Meitian，WU Yufen，CHENG Fei3CHENG Lin* Hot!
Abstract：‘Shouyanyangjiao 611’is a new early maturing pepper F1 hybrid developed by crossing inbredline‘CSVHPM1766002’as the female parent and inbred line‘CSVHPF1607001’as the male parent．Theplants grow strongly，tolerate low temperature，and bear fruits continuously．It takes about 55 days for plants tostart harvesting after the planting．The fruit is shaped like a sheep horn，with 25-28 cm long and 3-4 cm wide．The juvenile fruits are tender green，while ripen fruits are red and straight with smooth skin．The fruits have acontent of VC and capsaicin at 1 520 mg · kg-1 and 0.031%，respectively．It is resistant to TMV，moderatelytolerant to CMV，phytophthora and anthracnose diseases．The single fruit weight is about 110 g and the yield isabout 165 t · hm-2．It is suitable for spring protected cultivation in Shandong Province．
2024 Vol. 1 (2): 113-115 [Abstract] ( 43 ) [HTML 1KB] [ PDF 1479KB] ( 364 )
116 A New Cherry Tomato F1 Hybrid —‘Zhenwei No.1’
HE Xiuping1，HU Jijun2*，TAI Liansai2，LIU Yang3
Abstract：‘Zhenwei No.1’is a new cherry tomato F1 hybrid with self-inbred line‘W-1-3-1-4’asfemale parent and‘B-1-2-1-2-1’as male parent．It is an early maturing and infinite-growth type with strongplant growth，less leafy，and predominantly polychymes inflorescences．The matured fruit is pink in color，young fruit has green shoulder and the fruit is short oval in shape，with sweet and sour taste．The soluble solidscontent is 9.5%，lycopene content is 66.2 mg · kg-1，VC content is 289.3 mg · kg-1．It has good fruit settingability，with an average single fruit weight of 18 g．The early yield is about 12.75 t · hm-2，and the total yieldis about 49.50 t · hm-2．It is highly resistant to cucumber mosaic virus（CMV）and Fusarium wilt，moderatelyresistant to tobacco mosaic virus（TMV）and tomato yellow leaf curl virus（TYLCV）．It is suitable for protected fields cultivation in Shanghai，Jiangsu，and Zhejiang areas．
2024 Vol. 1 (2): 116-118 [Abstract] ( 39 ) [HTML 1KB] [ PDF 1506KB] ( 307 )
119 A New Tomato Rootstock F1 Hybrid Resistant to Bacterial Wilt—‘Yongshi No.3’
Abstract：‘Yongshi No.3’is a new tomato rootstock F1 hybrid developed by crossing inbred line‘4’as female parent and inbred line‘1’as male parent．It is infinite growth type，medium maturity．The plant has strong growth potential and developed roots．Its stem diameter is 2.3-3.3 cm，and the first inflorescence is on the 7-9th node．The fruit is oblate，and mature fruit is orange．The single fruit weight is about 60 g，and the yield is about 60 t · hm-2．The seeds are flat and short ovate，with fuzz on the surface，and the thousand seed weight is about 1.9 g．It has good grafting affinity，high survival rate and high resistance to bacterial wilt．It is suitable for southern Guangxi as tomato grafting rootstock．
2024 Vol. 1 (2): 119-122 [Abstract] ( 44 ) [HTML 1KB] [ PDF 1605KB] ( 316 )
123 A New Bitter Gourd F1 Hybrid —‘Qinglei No.1’
JIANG Ding，ZHENG Yansong*，LI Guangguang，DAI Xiuchun，WU Bei，LI Xiangyang，ZHANG Hua，HUANG Zhen
Abstract：‘Qinglei No.1’is a new big top-styled bitter gourd F1 hybrid developed by hybridizationof inbred lines‘D-1-3’as female parent and inbred lines‘Y-3-6’as male parent．The plant growsvigorously，and big top-shaped fruits，dark green rind with alternating round and stripe tubercles．The fruitsare 11.4-12.6 cm in length，10.3-11.3 cm in width，and 1.15-1.16 cm in thickness．It is a medium maturingvariety which takes about 77 days for first harvesting after sowing in spring，and about 56 days in autumn．The variety’s whole growth duration lasts for about 110 and about 99 days in spring and autumn seasonsrespectively，and its harvest period lasts for around 33 days in spring and 43 days in autumn．The single fruitweight ranges from 342.3 to 420.3 grams，and 90.08%-92.10% of the harvested fruits are marketable．Thisvariety exhibits a moderate resistance against Fusarium wilt and has a yield of 30 t · hm-2 approximately．It issuitable for spring cultivation in Guangdong Province．
2024 Vol. 1 (2): 123-125 [Abstract] ( 37 ) [HTML 1KB] [ PDF 1515KB] ( 229 )
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2024 Vol. 1 (2): 126-130 [Abstract] ( 65 ) [HTML 1KB] [ PDF 1515KB] ( 313 )
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2024 Vol. 1 (2): 131-134 [Abstract] ( 33 ) [HTML 1KB] [ PDF 1600KB] ( 337 )
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