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Current Issue
2024 Vol.1 Issue.1,
Published 2024-01-01
1
Vegetable Market Analysis in 2023 and Outlook for 2024
ZHANG Jing，ZHOU Xiangyang，LIU Jifang，WU Jianzhai*
Hot!
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．
2024 Vol. 1 (1): 1-5 [
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Studies and Analysis on Japanese Monitoring Measures for Vegetables Imported from China
CHEN Zeyu，ZHANG Yun，ZHANG Xinren，HUANG Xiangzhu*
Japan is an important vegetable export market for China，but in recent years，it is common occurance that Chinese vegetables exported to Japan were reported as unqualified．Besides，Japanese government frequently updated its import monitoring plan on vegetables produced in China．Therefore，this paper presented and analyzed the Japanese import monitoring measures on vegetables produced in China and monitoring results from 2017 to 2023．By conducting comprehensive judge and study，we found that the following items being frequently monitored．They are organic phosphorus，triazole，organochlorine，and new type pesticides，such as procymidone and haloxyfopare monitored as high-frequency items；and vegetables like bulbs，solanaceous vegetables，legumes，and brassica monitored as high-frequency vegetables．At the same time，this paper analyzed the reasons why Chinese vegetables exported to Japan was blocked，and suggested to control pesticide residue and quality in each processing link；to improve the limit standards of pesticide residue and so on．
2024 Vol. 1 (1): 6-13 [
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58
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14
Application Status of Scientific Fertilization Model in Beijing Facility Vegetables and Advise for Its Extension
QIANG Xiaoyu，PU Yu，CHEN Qin，TANG Xiao，YAN Shiang，XIE Yue*
During facility vegetables production，agricultural science and farming techniques are still not fully applied，unreasonable cropping arrangement and fertilization still exist．This paper conducted analysis on the application status of different fertilization models in Beijing facility vegetables and its production benefit；explored the difficulties in agricultural technology popularization；and put forward corresponding suggestions．The results showed that facility vegetables planting model was mainly monoculture in Beijing，and fertilization model was mainly combined application of chemical fertilizer plus organic fertilizer．Only 13.0% farmer households used soil testing and fertilization techniques．Farmer household’s cognition，whether joining a cooperative，foreign collaboration status，technical cost and whether government subsidies would influence farmer household’s decisions on adopting agricultural technologies．We suggested to accelerate the popularization and application of scientific and agricultural technology，promote efficient use of resources and green development in facility vegetable production by enhancing the cognitive level of farmer households，improving the means of spreading agricultural technology，strethening the exchanges and cooperation between farmer households with universities and enterprises，and perfecting government support mechanism for green transformation．
2024 Vol. 1 (1): 14-21 [
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22
Comparative Transcriptome Analysis of Age-related Resistance of Ph-2 Gene to Late Blight（Phytophthora infestans）in Tomato
PAN Chunyang，LI Xin，SU Wenyue，HU Junling，LU Xiaoxiao，PAN Feng，ZHANG Chen，ZHANG Hui，HUANG Zejun，GUO Yanmei，WANG Xiaoxuan，DU Yongchen，LIU Lei，LI Junming*
Hot!
Late blight is an important disease destroying tomato production．Previous studies have shown that Ph-2 gene presented age-related resistance against late blight in tomato．In this study，we used comparative transcriptome analysis to identify the differentially expressed genes at 0 h，8 h，24 h and 48 h respectively after inoculation of Phytophthora infestans between two seedling stages．The results showed that there was no significant difference in the expression levels of Ph-2 gene and other typical disease resistance genes between the three-leaf stage seedlings and the six-leaf stage seedlings at 0-48 h after inoculation．The expression difference of peroxidase gene Solyc01g006290 and Solyc02g087110 between the two seedlings maybe one of the causes for the age-related resistance．The expression level of Solyc01g006290 gene in sixleaf stage seedlings from 0-48 h after inoculation was always significantly higher than that in three-leaf stage seedlings．Solyc01g006290 gene positively regulates lignin synthesis and plays an important role in cell wall strengthening．There was no significant difference in the expression level of Solyc02g087110 gene between the three-leaf stage seedings and six-leaf stage seedlings at 0 h after inoculation，but the expression level of the gene in the three-leaf stage seedlings is greatly down-regulated and significantly lower than that in the six-leaf stage seedlings at 8-48 h after inoculation．Besides，the difference in the expression of genes in salicylic acid and ethylene signal transduction pathways between the two seedlings may also be one of the reasons for the agerelated resistance．Our result lays the foundation for the durable resistant breeding against late blight in tomato．
2024 Vol. 1 (1): 22-28 [
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29
Comprehensive Evaluation of Nutritional Quality Using Multivariate Statistical Analysis in Brassica juncea
LI Jianzhong1，2，DAI Yun1，YE Xinyu1，2，LI Guoliang1，ZHANG Shifan1，LI Fei1，ZHANG Hui1，YUAN Lingyun2，CHEN Guohu2，WANG Chenggang2，ZHANG Shujiang1*
Hot!
To establish a standardized evaluation system for assessing the nutritional quality and to identify varieties of superior quality in Brassica juncea，this study comprehensively assessed nine quality indices：dry matter，vitamin C（VC），crude protein，crude fiber，glucose，fructose，oxalic acid，malic acid，and citric acid across 14 Brassica juncea lines．Multivariate statistical analysis methods，including correlation analysis，principal component analysis，fuzzy mathematical subordinate function analysis，and cluster analysis were employed in this study．The results revealed significant difference at coefficients of variation ranging from 16.46% to 66.67%．This indicated substantial variability among the individual indices of different Brassica juncea lines．Principal component analysis identified the‘1917012’‘1917396’and‘1917381’lines showing superior overall performance，whereas the‘1917351’and‘Xiangrui 182’lines were less favorable．According to fuzzy mathematical affiliation function analysis and cluster analysis，the‘1917396’‘1917397’and‘1917381’lines contained high nutritional quality，in contrast to the‘1917152’and‘Xiangrui 182’lines．Consequently，the‘1917396’and‘1917381’lines excelled in this evaluation system，indicating that they were rich in dry matter，VC，etc．This study demonstrated that the evaluation method could effectively decrease the impact of individual index variations，offering guidance for the selection．
2024 Vol. 1 (1): 29-37 [
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38
In Vitro Culture and Regeneration System Establishment of Pepper
LI Haoyu1，2，JIA Li2，SONG Tingting2，WANG Sheng1，2，ZHANG Yu1，2，FANG Ling2，ZHANG Qi’an2，YAN Congsheng2，SUI Yihu1*，JIANG Haikun2*
In order to establish an efficient in vitro regeneration system for chili peppers，five different genotypes of aseptic chili peppers were selected，and the effects of the addition of MS medium with different hormone ratios on bud induction and differentiation，elongation and proliferation，root growth and transplantation were investigated．The results showed that the combination of MS + 6.0 mol·L-1 6-BA + 1.0 mol·L-1 IAA + 5.0 mol·L-1 AgNO3 was the optimal medium for bud differentiation，which could induce white fluffy healing tissues，with a 100.0% induction rate of Flamingo-bill and 86.7% of cotyledons．MS + 3.0 mol·L-1 6-BA + 2.0 mol·L-1 IAA + 5.0 mol·L-1 AgNO3 + 1.5 mol·L-1 GA3 was the optimal medium for adventitious bud elongation，with 66.7% ratios of adventitious bud elongation in Flamingo-bill and 30.0% ratios in cotyledons adventitious bud elongation．MS + 0.5 mol·L-1 NAA was the optimal medium for adventitious bud rooting，the rooting rate of both Flamingo-bill and cotyledon adventitious bud was 100.0%．Regenerated plants were obtained from both Flamingo-bill and cotyledon explants.
2024 Vol. 1 (1): 38-45 [
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Effects of Biochar Application on Growth of Pakchoi and Soil Bacterial Community Structure under Microplastic Pollution
WANG Xiying1，MO Zhongmei1，LI Deyan2，ZHANG Lulu1，3，4，ZHAO Hui1，3，4*，TAN Zhiyong1，3，4，HOU Jianwei1
Pot experiments were conducted using‘Sijixiaobaicai’to study the effects of biochar application on the growth of pakchoi on soils contaminated by different microplastics（PP，PE，and PVC）and on soil bacterial community structure and abundance．Functional prediction of soil bacterial community was also conducted．The results showed that microplastic contamination inhibited the fresh mass and leaf number of pakchoi．Biochar application increased the fresh mass，plant height，and root length of pakchoi grown on microplastic-contaminated soils．Co-treatment with microplastics and biochar significantly increased soil bacterial abundance．The highest soil bacterial abundance was found in PER treatment．Co-treatment with PE or PVC and biochar significantly increased the Chao1 index and ACE index of soil bacteria．On the phylum level，Actinobacteria，Proteobacteria，Chlorobacteria，Firmicutes，and Acidobacteria are dominant taxa．Co-treatment with microplastics and biochar increased the relative abundance of Actinobacteria，but decreased the relative abundances of Proteobacteria and Acidobacteria．Soil pH value and organic carbon，ammonium nitrogen，nitrate nitrogen，and available potassium contents were primary influence factors for changes in soil bacterial community structure．Functional prediction of soil bacterial community using PICRUSt showed that biochar application increased the relative abundances of several metabolic pathways of beneficial bacteria，including soil metabolism，environmental information processing，and organic system．To conclude，biochar application had a significant impact on the bacterial community in microplastic-contaminated soils，though the degree of influence varied with the type of microplastics．
2024 Vol. 1 (1): 46-59 [
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60
Evaluation of Several Resistance Inducers’ Control Effects on ZYMV in Watermelon
HAO Xiaoyuan1，LIU Zhuowen1，LIU Fengnan1，LIU Liming1，WU Huijie1，GU Qinsheng1，KANG Baoshan1，2*
In order to explore plant immunoinducer with control effect to watermelon virus disease，taking zucchini yellow mosaic virus（ZYMV）as control object，plant pathogenicity and relative control efficiency as indicators，this paper evaluated 6 agents with different concentrations，including picolinic acid（Pip），N-hydroxy-picolinic acid（NHP），gallic acid，benzothiadiazole（BTH），chitosan，β-aminobutyric acid（BABA），and their two-agent and three-agent combinations for their control effects on this virus disease．The results showed that the control effect of single-agent on ZYMV in watermelon ranked from high to low as follows：NHP（0.5 mmol·L-1），Pip（2 mmol·L-1），chitosan（1 g·L-1），gallic acid（0.5 g·L-1），BABA（1 mmol·L-1），BTH（0.1 mmol·L-1）．In the combination agent experiment，the best control effect of the twoagent combination was 2- Ⅶ（NHP 0.5 mmol·L-1 + Pip 2 mmol·L-1）．Eleven days after inoculation，when incidence rate of the plant by control-treated water reached 100.00%，the incidence rate of the combinationtreated plants was 10.00%，and relative control effect was 89.99%．However，this combination agent would affect plant growth．The combination of 3 agents with better control effect were 3-Ⅰ（gallic acid 0.5 g·L-1 + NHP 0.5 mmol·L-1 + BABA 1 mmol·L-1）and 3- Ⅱ（gallic acid 0.5 g·L-1 + NHP 0.5 mmol·L-1 + Pip 2 mmol·L-1）．Their incidence rates were 27.27% and 33.33%，respectively，and their relative control effects were 79.49% and 68.27%，respectively，significantly higher than those of the other combinations．Among them，the incidence rate of the plants treated with 3-Ⅱ increased slowly，and disease control effect was more lasting than that of the other treatments．Thus，3-Ⅶ had the best control effect on ZYMV．The results indicate that NHP，Pip and gallic acid had potential application value in preventing watermelon virus diseases．
2024 Vol. 1 (1): 60-67 [
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Identification of Potato Fusarium Wilt Pathogen in Shandan County Zhangye City
HE Shuwen1，WANG Yan2，CUI Lingxiao2，XU Yongfeng1，WANG Zehao1*，YANG Chengde2*
To confirm the species of potato Fusarium spp. causing potato Fusarium wilt in Gansu Province，this paper conducted isolation and pathogenicity identification on pathogens of potato Fusarium wilt collected from Shandan County；and also classification and identification combined with its morphological characteristics and molecular biological analysis．The results indicated that the 3 fungi isolates obtained from isolation could cause typical Fusarium wilt symptoms on potato according to the pathogenicity identification．Among them，3-2 macro-conidia were in a shape of sickle．There were mostly 3-5 partitions，and the size was（50-75）μm ×（4-5）μm．While，the micro-conidia were ovalize．About pathogenic fungus 1-1，color of colony surface center was changed gradually from white to red，and its edge was white in color，presenting irregular shape．Conidium was not observed．The mycelia of pathogenic fungus 3-6 were red in color．At later growth stage，the colony center surface turned yellow．The hyphae has septa．The chlamydospores were round in shape，and conidium was not observed．Combining morphological features with ITS and EF-1α gene sequences homology，pathogenic fungus 3-2 was identified as Fusarium equiseti．Potato Fusarium wilt caused by this pathogenic fungus was first reported by domestic news．Pathogenic fungi 1-1 and 3-6 were identified as Fusarium tricinctum．Potato Fusarium wilt caused by this pathogenic fungus was first reported in Gansu Province．
2024 Vol. 1 (1): 68-73 [
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Effects of Pinching Position and Frequency on Growth and Yield of Tomato under Long-season Cultivation in Solar Greenhouse
LI Nan1，LIU Xigang1，LI Jing1，2，3，JI Tuo1，2，3，WEI Min1，3，YANG Fengjuan1，2，3*
Aiming to address the issues of premature senescence，yield decline，and reduced quality caused by inadequate plant management under long-season cultivation of tomato in solar greenhouse，this study examined the effects of different pinching positions and frequencies on growth，flowering and fruit setting time，and yield，using tomato cultivar ‘Shengluolan 3689’and no pinching as control（CK）．Three treatments involving pinching every 4 clusters（T1），6 clusters（T2）and 8 clusters（T3）were set．The results indicate that as the growth period extended，the plant height and stem diameter of tomato increased under all treatments．Additionally，the photosynthetic pigment content and the net photosynthetic rate of lateral branch leaves initially increased，followed by a decrease．Compared to CK，the stem length and yield of the T1，T2 and T3 treatments increased，and the tomato harvest period was extended．The plant height，stem diameter，and yield increased by 8.7%，3.8% and 7.1%，respectively，under the T1 treatment at 240 days after planting．Under T1 treatment，the ripening times for the first 4 clusters of fruits were 9，22，29，10 days earlier，and the harvest times were 12，28，15，9 days earlier．Additionally，the harvesting period for the 14th cluster of fruit was extended by 19 days．The economic benefit of T1 treatment was superior．In summary，pinching every 4 clusters is beneficial for the growth and yield formation of tomato under longseason cultivation，which can also partially alleviate the shortage of tomato products during the Spring Festival and Summer vacation time，and can be used as a method to regulate plant growth for the long-season，highquality，and high-yield cultivation of tomato．
2024 Vol. 1 (1): 74-80 [
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81
Effects of Biostimulants on Growth，Yield and Quality of‘ Majianghongsuan’
WANG Mengli1，2，WEI Jingjing1，2，ZHOU Shiyang3，WU Qingtao3，LI Maogui3，ZHOU Rong1，2，JIANG Fangling1，2，WU Zhen1，2*
Four biostimulants（seaweed extract，amino acid，chitosan and‘Haijingling’）were selected to study the effects of different biostimulants on the growth，yield and quality of‘ Majianghongsuan’using field experiments．Different spraying concentrations were set during the green turning period of‘Majianghongsuan’．Different spraying times were set throughout the entire growth period of ‘Majianghongsuan’（i.e.，spraying once during the seedling stage，spraying once during the seedling and bolting stages，respectively，and spraying once during the seedling，bolting，and bulb expansion stages，respectively）．The results showed that spraying 0.25 g·L-1 seaweed extract，1 g·L-1 amino acid，and 0.5 g·L-1‘ Haijingling’on the leaves significantly increased plant height，pseudostem length and pseudostem thickness of ‘Majianghongsuan’．Bulb yield and soluble sugar content increased by 15.08%-19.42% and 19.17%-26.66%，respectively，when applying the biostimulants as compared with the control．Spraying seaweed extract，amino acid and‘Haijingling’ for three times significantly increased the plant height，pseudostem thickness，leaf width and bulb yield of ‘Majianghongsuan’，where the yield of bulbs was positively related to the apraying times of biostimulants．The contents of soluble sugar，soluble protein，VC and allicin in bulb were increased by four biostimulants in varying degrees during the experiment of spray times．In summary，0.25 g·L-1 seaweed extract or 1 g·L-1 amino acid or 0.5 g·L-1‘Haijingling’ during the seedling stage can increase production and quality of‘ Majianghongsuan’．Spraying biostimulants during the seedling，bolting and bulb expansion stages has the best effect in increasing garlic yield．
2024 Vol. 1 (1): 81-89 [
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90
Effects of Different Concentrations of Cynanchon，Naphthylacetic Acid and Uniconazole on Growth of Green Onion at Seedling Stage
CUI Dandan1，HAN Jinlei2，XU Youquan1，WANG Jing1，LI Shengli1*
In order to explore the effects of different plant growth regulators on seedling growth of green onion at seedling stage，the research evaluated the effects of three plant growth regulators（cynanchon，naphthylacetic acid and uniconazole）on the growth of green onion at seedling stage．The results showed that spraying three plant growth regulators could significantly increase the number of roots，stem diameter，seedling strength index and root shoot ratio of green onion seedlings．The plant height of the green onion seedlings treated with cynanchon and uniconazole was significantly decreased，while the plant height of the green onion seedlings treated with naphthylacetic acid was increased．The chlorophyll content and dry weight of the green onion seedlings treated with cynanchon and naphthylacetic acid were increased，while the dry weights of leaves and pseudostems treated with different concentrations of uniconazole were decreased by 7.56%-31.59% and 27.95%-47.33%，respectively，compared to the control at 35 days after treatment．Considering the morphological indexes and dry matter accumulation of the green onion seedlings，the 500 mg·L-1 uniconazole treatment had the best effect on controlling the growth of seedling，and the seedling strength index and root shoot ratio were increased by 111.00% and 91.30% in comparison to the control treatment，respectively．
2024 Vol. 1 (1): 90-95 [
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96
Field Control Efficacy of Different Pesticides to Tetranychus urticae and T.truncatus
DONG Rui，XU Dandan，LI Yuhuan，WANG Shaoli*
Hot!
In order to determine the control effects of different pesticides to the Tetranychus urticae and T.truncatus，12 different types of pesticides were selected to conduct field control tests on the two types of spider mite．The results showed that the efficacy of different pesticides against the T.urticae varied greatly at 3 days．The efficacy of 0.5% ivermectin emulsifiable concentrate，43% bifenazate suspension concentrate，30% cyenopyrafen suspension concentrate，and 20% cyflumetofen suspension concentrate was more than 90%，and the lowest efficacy of 1.8% avermectin emulsifiable concentrate was 58.17%．The efficacy of the other pesticides against the T.truncatus was more than 90%，except for ivermectin．The preventive efficacy of different pesticides on T.urticae ranged from 40.30% to 97.70% at 7 days after treatment，and against the T.truncatus at 87.55% to 99.45%，indicating that the 12 pesticides were more effective against the T.truncatus than against the T. urticae at 3 days and 7 days post-dose．Taking the results of different time points together，all 12 pesticides can be used for the control of the T.truncatus，besides，the ivermectin，bifenazate，cyflumetofen，30% cyetpyrafen suspension concentrate and 45% bifenazate-ethoxyfenozide compounds suspension concentrate can be used applied by rotation for T.urticae．
2024 Vol. 1 (1): 96-100 [
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101
Establishment of Sensitive Baselines and Resistance Monitoring of Corynespora cassiicola to Diethofencarb and Procymidone
WEN Zhihao，ZHU Guangxue，SUN Bingxue，ZHOU Rongjia，XIE Xuewen，CHAI Ali，LI Lei，FAN Tengfei，LI Baoju*，SHI Yanxia*
Hot!
In order to determine the resistance level of Corynespora cassiicola from different regions（Shandong and Liaoning）to diethofencarb and procymidone，in this experiment，the mycelial growth rate method was used to determine the sensitivity of C.cassiicola to diethofencarb and procymidone and the sensitive baselines of C.cassiicola to diethofencarb and procymidone were established．The resistance of C.cassiicola to diethofencarb and procymidone were detected with discriminating dose method．The results showed that the mean EC50 value of C.cassiicola to diethofencarb was（0.22 ± 0.06）μg·mL-1 and the mean EC50 value of C.cassiicola to procymidone was（2.75 ± 0.91）μg·mL-1．The sensitivity frequencies of both showed a continuous unimodal curve，overall following a normal distribution，which can serve as a sensitive baseline for the sensitivity of C.cassiicola to diethofencarb and procymidone．By monitoring the resistance level of 828 C.cassiicola isolates，it was found that the resistance level of C.cassiicola to diethofencarb and procymidone is continuously increasing．The level of resistance of strains in Shandong to diethofencarb and procymidone increased from 58.06% and 43.55% in 2017 to 91.30% and 78.99% in 2021．The level of resistance of strains in Liaoning to diethofencarb and procymidone increased from 67.44% and 53.49% in 2017 to 82.14% and 83.33% in 2021．It indicates that C.cassiicola has a high resistance risk to diethofencarb and procymidone．It is recommended to alternate or mix the application of diethofencarb and procymidon with other types of fungicides in cucumber production to delay the development of resistance．
2024 Vol. 1 (1): 101-106 [
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Bio-activity Determination and Field Pesticide Effect Evaluation on Composition of Mefentrifluconazole and Kresoxim-methyl against Strawberry Powdery Mildew
HU Changxiao，CAO Dan*，WANG Haohan，ZHANG Ying
In order to clarify the control effect and optimal complex ratio of mefentrifluconazole and kresoxm-methyl on strawberry powdery mildew，this experiment by pot-culture method determined the indoor bio-activity of mefentrifluconazole，kresoxm-methyl single dosages and their composition on strawberry powdery mildew；then based on the optimal synergistic ratio conducted field pesticide effect evaluation．The results showed that the LC50 values of single agents of mefentrifluconazole and kresoxm-methyl against strawberry powdery mildew were 0.416 8 and 2.673 7 mg · L-1，respectively．The mass ratio of the two showed a synergistic effect in the range of 3∶7-6∶4，the synergistic effect was the most significant when compound ratio was 4∶6，the cotoxicity coefficient was 149. Based on this mass ratio，the composition of 400 g·L-1 mefentrifluconazol SC and 50% kresoxm-methyl WC showed the best prevention and control effect at the dosage of 25 g·（667 m2）-1，and field efficacy on strawberry powdery mildew was 78.67%，87.00%，and 91.07%，respectively，7 days after the first，second，and third application．
2024 Vol. 1 (1): 107-111 [
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A New Cherry Tomato F1 Hybrid with Resistance to Tomato yellow leaf curl virus —‘Jinbao’
DENG Junjun1，GAO Min1，HE Jie1，WANG Binglin2，SUN Hongbo1，ZHU Honghua1，YAN Han3，YANG Yuan3
‘Jinbao’is a new resistance to TYLCV cherry tomato F1 hybrid developed by crossing selfinbred line‘hy15-1-5’as the female parent and‘10-4-6’as the male parent．It is of medium maturity．This cultivar is characterized by its indeterminate growth habit，vigorous vine plant，moderate leaf volume．The fruit is of oval shaped with an orange color，and have green shoulders during the maturation period．The single fruit weight is about 25 g．The soluble solid content is 8.9%，total sugar content is 15.0%，lycopene content is 2.50 mg · kg-1，and VC content is 113.0 mg · kg-1．The yield is about 55.5 t · hm-2．This cultivar carries Ty-2 gene for resistance to TYLCV，and its resistance to TYLCV is stronger than that of the contrast‘Bijiao’and‘Jinfei’in fields．It is suitable for greenhouse cultivation during the early spring in Shaanxi regions．
2024 Vol. 1 (1): 112-114 [
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A New Tomato F1 Hybrid —‘Minnongke No.3’
ZHANG Qianrong1，2，3，CHEN Mingzhang4，QIU Boyin1，2，3，LIN Hui1，2，3，YE Xinru1，2，3，LIU Jianting1，2，3，LI Yongping1，2，3，ZHU Haisheng1，2，3，WEN Qingfang1，2，3*，LI Dazhong1，2，3*
‘Minnongke No.3’is a new tomato F1 hybrid of infinite growth type developed by taking selfing line‘15H1024-1-1-1-1-1-1’as female parent and‘15H2046-2-1-1-1-1-1’as male parent．The plant has strong growth vigor．It is semi-rampant with medium and early maturity．The first flower sets on the 9-12th node．Its fruit is of near round shape，glossy bright red in color．It has small umbilical．The fruit surface is smooth without furrow．It is not easy to produce deformed/cracked fruits，and tolerant to storage．The single fruit weight is 180-240 g．The soluble solids content is 4.2%．The lycopene content is 36.1 mg·kg-1．Sugar-acid ratio is 0.61．In fields，its resistance to tomato yellow leaf curl virus disease（TYLCV）is significantly stronger than that of the contrast‘ZX252’．This variety can produce about 75 t·hm-2．It is suitable for cultivation in plastic greenhouse in winter in Fujian Province．
2024 Vol. 1 (1): 115-117 [
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A New Flowering Chinese Cabbage F1 Hybrid —‘Yutian No.3 caixin’
LI Guangguang，ZHANG Hua*，ZHENG Yansong，JIANG Ding，REN Hailong，XU Xunzhi
‘Yutian No.3 caixin’is a new first-generation hybrid and late-maturing flowering Chinese cabbage，which is produced by using the male sterile line‘NKY018A1’of the Ogu CMS as the female parent and the inbred line‘B-1-1-3’as the male parent．From sowing to harvest，the spring crop takes 50-52 days and the autumn crop takes 52-54 days．It is an erect crop with a spiky leaf shape，dark green leaves，large flower heads，thick stems，and firm，symmetrical flesh．Its main stem is about 28.3 cm in high，and 2.7 cm in diameter．The weight of a single main stem is about 0.112 kg．The yield is about 19.5 t·hm-2 for spring crops，and 24.0 t·hm-2 for autumn crops．Its VC content is 318.0 mg·kg-1，and soluble sugar content is 19.1 g·kg-1．It is resistant to downy mildew and has strong cold resistance，which is suitable for planting in Guangdong．The suitable sowing time in the Pearl River Delta is from October to mid-December．
2024 Vol. 1 (1): 118-120 [
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A New Watermelon F1 Hybrid —‘Nongkeda No.14’
MA Jianxiang，ZHANG Yong，LI Hao，WEI Chunhua，YANG Jianqiang，BAI Ruyi，SHEN Jian，WEN Ruiqi，FU Yuhang，WANG Xiang，YANG Tian，ZHANG Xian*
‘Nongkeda No.14’is a new watermelon F1 hybrid with a medium fruit shape，which was developed using the inbred line‘Y2M’as the female parent and‘1526’as the male parent．It is an earlymaturing variety．The fruit development period is about 30 days，and the whole growth period is about 90 days．The fruit is round，which the peel is green with dark green stripes and the flesh is bright red．The center soluble solids content is 12.4%．This variety is medium resistant to Fusarium wilt．The peel thickness is 1.1 cm，and relatively suitable for storage and transportation．The average single fruit is 6.5 kg，with the yield of 63 t·hm-2．It is suitable for protected cultivation in Shaanxi Province．
2024 Vol. 1 (1): 121-123 [
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2024 Vol. 1 (1): 124-129 [
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Hot!
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2024 Vol. 1 (1): 134-135 [
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2024 Vol. 1 (1): 136-138 [
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