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01 January 2021, Volume 1 Issue 1
    

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  • Research Progress on Cabbage Genetic Breeding During ‘The Thirteenth Five-year Plan’ in China
    YANG Limei，FANG Zhiyuan，ZHANG Yangyong，ZHUANG Mu，LYU Honghao，WANG Yong，JI Jialei，LIU Yumei，LI Zhansheng，HAN Fengqing
    China Vegetables. 2021, 1(1): 15-21.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    During‘The Thirteenth Five-year Plan’period，important progress on cabbage genetic
    breeding in China was achieved．A number of new and novel germplasm resources was created．Some genes/
    QTLs associated with important agronomic traits were mapped or cloned．A batch of new cabbage varieties with
    good quality and multiple resistances was developed．This paper summarized the important research progress
    in recent 5 years from the aspects of germplasm innovation，mapping/cloning of genes/QTLs with important
    agronomic traits，and breeding of new varieties，etc．The paper also analyzed the main problems existing in
    present cabbage breeding and the development direction in future．
  • Research Progress on Chinese Cabbage Genetic Breeding During‘The Thirteenth Five-year Plan’in China
    ZHANG Fenglan，YU Shuancang，YU Yangjun，ZHANG Deshuang，SU Tongbing，ZHAO Xiuyun，WANG Weihong，LI Peirong，XIN Xiaoyun
    China Vegetables. 2021, 1(1): 22-32.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    During‘The Thirteenth Five-year Plan’period，significant progress has been achieved on
    genetic breeding of Chinese cabbage〔Brassica campestris L. ssp. pekinensis（Lour）Olsson〕in China．
    A number of novel breeding materials with outstanding resistance to new epidemic diseases and composite
    resistance has been obtained by widely applying techniques combining conventional breeding，markerassisted
    breeding DH and high throughput MAS breeding in cabbage breeding programs．A batch of new
    Chinese cabbage varieties with high taste quality and diversified product types has been released and applied
    in production．In addition，the basic research for application in China has been in the international leading
    level．This paper systematically summarized the important progress obtained on applied basic research，
    breeding technique research，germplasm innovation and new variety selective breeding of Chinese cabbage
    during 2016-2020．The paper also discussed and analyzed the changes in industry，existing problems and the
    development direction in future．
  • Research Progress on Broccoli Genetic Breeding During ‘The Thirteenth Five-year Plan’ in China
    LI Zhansheng，LIU Yumei，HAN Fengqing，FANG Zhiyuan，ZHANG Yangyong，YANG Limei，ZHUANG Mu，LYU Honghao，WANG Yong，JI Jialei
    China Vegetables. 2021, 1(1): 33-40.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    During ‘The Thirteenth Five-year Plan’，the genetic breeding of broccoli in China has
    been quickly developed．A batch of broccoli new varieties and breeding resources with excellent traits has
    been selected and bred．The bottleneck problem in seed production based on male sterility has been broken
    through．So far，the market-share of broccoli new cultivars bred in China has grown up to 15.36% from
    insufficient 5% in 2010．At the same time，the applying basic research in China developed rapidly，our genetic
    breeding technology of broccoli has reached the international advanced level．This paper reviewed the research
    achievement and progress made in China since 2016 from the aspects of broccoli germplasm innovation，new
    cultivars selective breeding，breeding technologies，etc．The paper also put forward the existing potential
    problems and future development trend for broccoli industry．
  • Molecular Marker-assisted Selective Breeding of Sweet Pepper Inbred Line with Resistance Gene（L4）to Tobamovirus and Resistance Gene（Pvr4）to Potato virus Y
    YU Hailong，WANG Lihao，ZHANG Baoxi，ZHANG Zhenghai，CAO Yacong
    China Vegetables. 2021, 1(1): 41-47.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    Tobamovirus is one of the most important viruses harming pepper production in China．In
    recent years，damages by pepper mild mottle virus（PMMoV） has become more and more serious．The L
    allelic genes（ L1，L2，L3，L4） are the main resistant genes providing resistance against Tobamovirus．In order
    to improve the Tobamovirus and PVY resistance of pepper varieties，this experiment took‘ CM334’（ with
    resistance to PVY，containing Pvr4 gene）and imported material ‘200375’（with resistantce to PMMoV，
    containing L4 gene）as resistant resources，and sweet pepper inbred line‘ 83-163’（ medium resistance
    to Phytophthora blight and CMV）as backcross parents，and conducted multi-generation backcross and
    selfing．Utilizing molecular marker-assisted selection（MAS）combined with seedling resistance identification
    and morphological selection，this experiment at last obtained the early-maturing，large fruit sweet pepper
    selfing line ‘PT83-163’，polymerizing 2 resistance genes L4 and Pvr4，both resistant to Tobamovirus and
    PVY（medium resistant to epidemic disease and CMV，containing resistant gene Pvr4 and L4）．By artificial
    inoculation identification，line‘ PT83-163’ was resistance to disease and its horticultural traits were comparable
    to that of the inbred line‘83-163’．
  • Effects of Exogenous 24-epibrassinolide on Tomato Seedling Growth and Potassium Accumulation Under Sub-low Temperature
    YANG Lian，GAO Huan，WU Fengzhi
    China Vegetables. 2021, 1(1): 48-55.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    Taking 2 tomato varieties‘Dongnong 708’（‘DN 708’） sensitive to low temperature and
    ‘Dongnong 722’（‘DN 722’）tolerant to low temperature as test materials，this paper studied the effects
    of 24-epibrassinolide（EBR）on tomato growth and potassium accumulation under sub-low temperature
    condition．The results showed that comparing with the suitable temperature，low temperature stress could
    inhibit the seedling growth of these 2 tomato varieties，and remarkably reduce the maximum photochemical
    efficiency of PSII （Fv/Fm），and K+ concentrations in stems and leaves，and significantly increase the
    malondialdehyde（MDA）content and electrolyte permeability．Moreover，the effects of sub-low temperature
    stress on‘DN 708’was greater than that on‘DN 722’．While，exogenous EBR effectively alleviated
    the inhibition of sub-low temperature stress on tomato seedling growth，significantly improved Fv/Fm，K+
    concentrations in roots，stems and leaves of these 2 tomato varieties，and increased relative expression levels of
    LKT1，SIHAK5 and SIHAK9 genes in roots and leaves，and significantly reduced MDA content and electrolyte
    permeability in seedlings of these 2 tomato varieties．And the variation range in‘DN 708’was greater
    than that in‘DN 722’．To sum up，exogenous EBR may increase the K+ concentration in various organs of
    tomato seedlings by promoting the expression of transport related genes and K+ absorption，reduce the degree
    of cell membrane peroxidation，and enhance the adaptability of tomato seedlings to sub-low temperatures
    condition．Thus，exogenous EBR has a greater mitigation effect on low temperature sensitive tomato variety‘ DN
    708’ under sub-low temperature stress than low temperature tolerant tomato variety‘ DN 722’．
  • Comprehensive Evaluation on Bolting Nature of Welsh Onion Germplasm Resources
    YANG Guodong，LI Na，JIA Junxiang，TIAN Yun，JIANG Xintao，JIANG Binbin，CUI Lianwei
    China Vegetables. 2021, 1(1): 56-61.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    Taking 28 different types germplasm resources of welsh onion as research objects，this paper
    selected 9 major traits at bolting and flowering stages of welsh onion as evaluation indexes on bolting nature，
    and conducted comprehensive evaluation on welsh onion bolting nature by principal component clustering
    analysis，average membership degree and bolting index methods．The results showed that the factors with
    bigger contribution to principal component of welsh onion bolting nature were initial bolting date，early
    flowering date，number of leaves and bolting speed．Their cumulative contribution rate reached 58.93%．
    Specially，initial bolting date had higher correlation with the other indexes，which could be the leading
    indicators for bolting nature evaluation．The bolting nature of different welsh onion germplasm resources could
    be distinguished effectively by principal component clustering analysis，average membership degree and bolting
    index methods．Among them，the average membership degree and bolting index methods could provide more
    visual and clear partition on bolting nature of welsh onion germplasm resources．These 2 methods had similar
    results．But the former’s merit was comprehensive，and the latter’s merit was simple and convenient．
  • Effect of Different Full Biodegradation Film on Stem Lettuce Production
    LI Shuifeng,WANG Huaying，XU Chuchu，FAN Zhengwei，ZHONG Shuiliang，HU Meihua
    China Vegetables. 2021, 1(1): 62-65.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    Ten kinds of full biodegradation films with different specifications were introduced and tested
    on stem lettuce production．Their effects on yield were studied．The results showed that except ‘Shanghai
    black 6’，the other degradable films had no significant effect on stem lettuce yield comparing with the ordinary
    polyethylene film．But there was the tendency of yield decreasing along with the decrease of film thickness．
    The thinner the film thickness was，the faster the degradation rate was．The time duration for black degradation
    film entering into induction period was generally earlier than that of the white one．Comprehensively seen from
    film degradation status and stem lettuce yield，full biodegradation film‘ Yunnan white 10’ was the most suitable
    film mulching for stem lettuce cultivation in early spring．
  • Screening and Identification of Phosphate-solubilizing Microorganism（PSM）in Burdock Rhizosphere Soil and Optimization of Phosphate-solubilizing Conditions
    SUN Ke，GENG Fengying，YU Qiuju，WANG Feng
    China Vegetables. 2021, 1(1): 66-72.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    Taking phosphate-solubilizing circle method and soluble phosphorus content determination
    method，this experiment screened out PSM-5 strain with stronger phosphate-solubilizing ability from Arctium
    lappa     L. rhizosphere soil and optimized the phosphate-solubilizing conditions on screened strains．The results
    indicated that the strain PSM-5 was tentatively identified as Bacillus subtilis，and after optimization the optimal
    conditions for phosphate solubilization were initial 3.79 pH value，28.46 ℃ fermentation temperature and 10.46
    g · L-1 salinity．These results have provided phosphate-solubilizing bactericide for next step development of
    bio-organic fertilizer dedicated for Arctium lappa L．
  • Effect of Different Numbers of Vernalization Day on Autumn Generation-adding Seed Reproduction of Pakchoi in Southern Zhejiang
    SHU Jun，HUANG Wenbin，LOU Jianying，FENG Guang，ZHANG Jianlong，LI Lebin，ZHANG Jingli，WU Xiaobao
    China Vegetables. 2021, 1(1): 73-78.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    Taking 3 types of pakchoi〔Brassica campestris L. ssp. chinensis（L.）Makino var. communis
    Tsen et Lee〕with different bolting ability as test material，this experiment adopted different low temperature
    and illumination to induce vernalization on seedlings，and studied the effects of 9 vernalization combinations
    on vegetative mass，bolting，blooming and seed quality of pakchoi．The results showed that the maximum
    differences in plant open width degree among different vernalization combinations in early，medium and late
    bolting types were 17.1，6.3 and 6.5 times．And the maximum differences in single plant weight were 5.6，
    2.8 and 2.9 times，respectively．The flowering date of each bolting type were significantly ahead of schedule，
    along with the increase of vernalization days number．For the early bolting，medium bolting and late bolting
    types，the maximum differences of flowering date between the different vernalization combinations of early
    bolting and medium bolting types were 54，39 and 36 days．For the early bolting and medium bolting types，
    the average single plant seed weight and germination rates were the best，when the vernalization treatments
    were happened on 20-20，20-25，respectively．By adjusting bolting anthesis and seed collecting stage，
    breeding generation-adding link and normal breeding cycle were complete articulation，thus realizing the
    breeding target of 2 generations one year for pakchoi in southern Zhejiang areas．
  • Residues and Digestion Dynamics of Cyantraniliprole and Pymetrozine in Pumpkin
    LI Anying，ZHANG Shaojun，CHEN Yongda，ZHAO Xudong，LI Hongyan，ZHENG Zhenshan
    China Vegetables. 2021, 1(1): 79-83.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    This paper developed an analytical method for detection of cyantraniliprole and pymetrozine
    residues in pumpkin，and studied the digestion dynamic rule and final residues of cyantraniliprole·pymetrozine
    water dispersible granules in pumpkin from Hebei and Zhejiang Provinces．The samples were extracted
    with acetonitrile，purified by N-propyl ethylenediamine（PSA）and determined by liquid chromatography
    tandem mass spectrometry．The results showed that the limit of quantification（ LOQ） of cyantraniliprole
    and pymetrozine in pumpkin samples were 0.01 mg · kg-1 and 0.005 mg · kg-1．The addition recovery
    rate of cyantraniliprole in the range of 0.01-1.0 mg · kg-1 was 100%-104%．The addition recovery rate of
    pymetrozine in the range of 0.005-0.5 mg·kg-1 was 96%-107%．The residue digestion rules of cyantraniliprole
    and pymetrozine in pumpkin were all conformed to the first-order kinetics process．The final residue of
    cyantraniliprole in pumpkin was ≤ 0.031 mg · kg-1，and the final residue of pymetrozine was ≤ 0.023 mg ·
    kg-1．The recommended dosage by enterprise was 450 and 675 g·hm-2，and the safe interval was 14 days．
    Pumpkin fruits during harvesting period were safe to eat．
  • Biological Control Experiment on Leek Gray Mould in Protected Fields
    WANG Dan，SHI Zhaopeng，LI Ping，LIU Cunhui，YIN Shanshan，　LI Jishun，ZUO Libo，SUN Zuowen
    China Vegetables. 2021, 1(1): 84-88.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    Grey mold is an important disease for leek cultivation in protected fields．Five Trichoderma
    strains were selected and sprayed on leek seedling and field control experiment was carried out on leek gray
    mold．The results showed that the control effects of Trichoderma atroviride 20111，T. harzianum C61，T.
    harzianum     LTR-2，T. harzianum 21990 and T. atroviride 23617 were 13.62%，68.93%，64.00%，91.72%
    and 87.23%，respectively．Among them，T. harzianum 21990 had the best control effect．On this basis，
    a cooperative control test on Trichoderma sp. and Bacillus subtilis was carried out．The results indicated that
    spraying T. harzianum 21990 mixed with water before covering the leek planted shelter，then spraying Bacillus
    subtilis     when the leek grew up to about 5 cm in height，the field control effect could reach 74.07%．
  • A New Luffa acutangula F1 Hybrid —‘Guiguan No.5’
    KANG Dexian，LI Yian，LU Fashi，WU Yongguan，LU Yacheng，JIANG Yaqin，MO Yangpeng，GAN Guiyun1，LI Weiliu1，WANG Yikui，LI Wenjia1
    China Vegetables. 2021, 1(1): 89-91.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    ‘Guiguan No.5’is a F1 hybrid of Luffa angustifolia developed by crossing inbred line‘B05-
    13-2’as female parent and inbred line‘A10-12-3-7’as male parent．The plant has strong growth vigor and
    strong branching ability．Both its main and lateral vines can bear melon．It is of early maturity．The first
    female flower sets on the 12-13th node in spring，but on 16-18th node in autumn．It takes 65-68 days from
    sowing to first harvest in spring and 45-47 days in autumn．The commercial melon is of short stick shape．Its
    rind is green with spots on the surface．The melon is 35-38 cm in length，5.0-5.2 cm in diameter．The single
    fruit weight is 310-350 g．Its flesh is white in color and tastes tender and sweet．The yield is 52.5-58.5 t · hm-2．
    Its resistances to downy mildew，powdery mildew and bacterial angular spot in fields are stronger than that of
    the contrast‘Guilinbalingua’ ．It is suitable for planting in spring，summer and autumn in Southern China．
  • A New Pickled Pepper F1 Hybrid —‘Qianla No.10’
    YANG Hong，JIANG Hong，LIU Chongzheng，LAI Wei，YAN Xi
    China Vegetables. 2021, 1(1): 92-95.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    ‘Qianla No.10’is a new pickled pepper F1 hybrid developed by crossing cytoplasm male sterile
    line‘8719A’as female parent and inbred line‘87-22-3C’as male parent．It is of early maturity，and
    takes about 170 days for whole growth period．The plant has strong growth vigor and continuous fruit setting
    ability．Its fruit grows upward，and is of orbicular．The fruit is about 2.0 cm in length，and about 2.9 cm in
    width．The average single fruit weight is 11.2 g．Its VC content is 1 505 mg · kg-1．The capsaicin content is
    114 mg · kg-1．In fields，its resistance to anthracnose is stronger than that of the contrast‘Meijiangmingzhu’．
    This variety can yield about 22.5 t · hm-2 fresh pepper．It is suitable to be planted in Zunyi，Bijie，Anshun，
    Guiyang，and states of Qiannan，Qianxi’nan of Yunnan-Kweichow plateau areas in spring．
  • A High Quality and Cracking Tolerant New Watermelon F1 Hybrid —‘Jingying’
    REN Yi，GONG Guoyi，ZHANG Haiying，GUO Shaogui，ZHANG Jie，LI Maoying，YU Yongtao，XU Yong
    China Vegetables. 2021, 1(1): 95-97.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    ‘Jingying’is a new early maturity，high quality，tolerance to cracking and long-time
    storage mini-watermelon F1 hybrid， developed by crossing selfing line‘XM’as female parent and selfing
    line‘HX3’as male parent．The plant has strong growth vigor and is easily bearing fruit under low temperature
    after grafting．It takes about 90 days for whole growth period and 30-35 days for fruit development stage．
    Its fruit is of elliptical shape with dark green rind，narrow stripes on the green peel．The single fruit weight
    is about 2.0 kg．Its flesh is even red in color．The central sugar content is 12%-13%，the highest one can
    reach 15.7%．The pericarp is thin and tenacious．The flesh is anti-cracking and anti-dehydration，crisp with
    good taste and long-time storage tolerance．Its shelf life can reach 15 days．The yield is about 52.5 t · hm-2．
    It is suitable for high-quality cultivation in protected fields all over China and for long-distance transportation．
  • A New Black Waxy Corn F1 Hybrid —‘Jinnuo No.20 ’
    FAN Rui，CHEN Yongxin，DONG Lihong，ZHAI Guangqian，LI Wenhe，RUAN Fulin
    China Vegetables. 2021, 1(1): 98-101.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    ‘Jinnuo No.20’is a new black waxy corn F1 hybrid developed by crossing inbred line‘Tian
    BN’as female parent and inbred line‘chN1’as male parent．Its ear is of cylindrical shape．The maize
    cob and kernels are purple black in color．In northern production areas，its growth period is about 91 days．
    The plant height is 279 cm，ear position height is 127 cm．Its ear is 20.5 cm in length，4.8 cm in thickness．
    There are 16 head progeny rows．The amylopectin holds 99.09% of the total starch content．The fresh ear yield
    is about 14.1 t · hm-2．It is medium resistant to leaf blight and gall smut．In the southern production areas，
    its growth period is about 76 days．The plant height is 225 cm and ear position height is 86 cm．Its ear is
    17.2 cm in length，4.9 cm in thickness．There are 14-16 head progeny rows．The amylopectin holds 98.30%
    of the total starch content．The fresh ear yield is about 12.0 t · hm-2．It is medium resistant to corn sheath
    blight．It is suitable for planting in the northern regions of Jilin，Inner Mongolia，Hebei，Shanxi，etc.，and
    in the southern regions of Zhejiang，Jiangxi，Fujian，Hainan，etc．
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