20 March 1997, Volume 1 Issue 2

    

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研究论文
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  Effects of Night Temperature in Seedling Stage on the Occurence of Malformed Tomato Fruit

  Li Tianlai;Wang Ping;Xu Hui et al.

  . 1997, 1(2): 1-0.

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  The results indicated that low night temperature in tomato seedling stage increased incidence,average grade and intergated index of malformed fruit,as well as the types of them. It was found that the critical temperature which induced high incidence of malformed fruit was between 6～12℃,the 10th～16th days after the two cotyledons fully expanded. The susceptible period for low temperature was at the stage of the 2nd～4th true leaves fully expanded. Therefore,tomato seedlings with 2～4 true leaves must be kept a...
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  Study on the Relationship of Phosphorus Levels with Yield and Quality of Garlic

  Cheng Ruixi;Wei Jiangqun;Liu Jingfu

  . 1997, 1(2): 2-0.

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  Results obtained in pot culture experiment indicate that there was a remarkable linear correlation between phosphorus level and biological yield of garlic(Allium sativum)in brown-yellow soil(y=7.64+8.72x,r=0.950),the effect of adding P 2 O 5 500mg per kilogram soil was better. In the case of phosphorus deficiency,application of phosphorus promoted the absorption of nitrogen and potassium. Increased the concentrations of allicin and soluble sugar,and decreased the contents of vitamin c,calcium and m...
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  Study on Mechanism of Perforated Plastic Film Mulch Increasing Early and Total Yield of Tomato

  Wen Xiangzhen;Li Yaling and Deng Zhifeng

  . 1997, 1(2): 3-0.

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  The path analysis in this paper showed that high CO 2 concentration of root zone under the plastic film mulch was the major factor which limited the activities of roots and leaves of tomatoes. Perforated film mulch improved soil aeration,decreased the CO 2 concentration of root zone,remarkably delayed senescence of the plants,accelerated the photosynthesis of leaves and supply capacity of roots,and eventually resulted in high early yield and total yield.
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  Studies on Planting Patterns of Vegetables in Solar Greenhouse

  Li Dengshun;Tian Kuixiang;Sun Jingyu

  . 1997, 1(2): 4-0.

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  Experiments were conducted to compare four planting patterns in three kinds of solar greenhouses. The results showed that even in the coldest January the temperature in the three kinds of greenhouses was over 4℃. For the four planting patterns,the A type:Cucumber+intercropping non-heading Chinese cabbage or garlic sprouts→tomato→mushroom,and the B type:Cucumber+intercropping non-heading Chinese cabbage or garlic sprouts→cucumber→tomato→garlic sprouts produced the highest profits. The average fresh vegetable...
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  Agronomic Character Analysis of Yardlong Bean Genetic Resources

  Wang Yanfeng;Zhang Weizhang;Gao diming

  . 1997, 1(2): 5-0.

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  Ten important agronomic characters of 1192 accessions of yardlong bean(Vigna unguiculata ssp. sesquipadalis)genetic resources were investigated. Very high level of variance existed among these varieties for all the characters studied,including pod length,pod weight,pod shape,pod color and seed coat color etc. . And some special accessions,for example,erect bush types,extremely early maturity,long pods over 70cm,single pod weight over 25 grams,and 100 seed weight over 19 grams,were detected.
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  Change of Soluble Proteins during Development of Chinese Cabbage Brassica rapa ssp. pekinensis

  Ao Yansong;Li Shijun

  . 1997, 1(2): 6-0.

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  The change of soluble protein type and level during different developmental stages was studied with three Chinese cabbage varieties with different bolting habits. The results were as follows:protein 8(R f =0.482)and protein 11(R f =0.620)were found in the floral bud initiation stage,and protein 15(R f =0.448)and protein 16(R f =0.416)were foundin the floral stalk differentiation stage. The level of protein 5(R f =0.645)and protein 6(R f =0.575)as the common protein during the whole d...
试验研究
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  A Preliminary Report on the Application of 60 COγto Cucumber Mutation Breeding

  Li Jiawang;Sun Zhongkui;Yang Sen et al.

  . 1997, 1(2): 7-0.

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  By irradiating cucumber dry seeds of a inbred line with 60 Coγ of 90 000 roentgen,mutants ohich had exellent comprehensive traits were obtained.After 3 generations of inbreeding and selecting,the inbred line,M-8,which had sveral beneficial traits was developed.And a new F1(93-5),which was tolerant to low temperature and low intensity light,and suitable for plastic greenhouse cultivation,was derived by crossing M-8 with another inbred line.The hybrid was earlier muturing,higher yield and more resis...
品种选育
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  Breeding of Eqie No.1 Eggplant-a New F 1 Hybrid oith Early Maturity and Long Purpli fruit.

  Tan Taiming;Xu Changcheng

  . 1997, 1(2): 8-0.

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  Eqie No.1(8819) is a newly released F 1 Hybrid that was developed from the cross of 87-25 self-bred line as female parent oith 86-16 self-bred line as male parent.It has desirable traits inclrding early maturity,tolerance tl low temperature, resistance to Eggplant Phytophora Fruit Rot, fine fruit characters and high yield.It is about three days earlier in maturity than that of shanghai zi×chang (the popular cultivar).The average yield is about 52.5t/ha,and the highest yield can reach 75t/ha.The early outpu...
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  Breeding of F 1`Shannong NO.1 of Benincasa hispida var.chieh qua.\

  Wei Youying;Zhang Qipei;Wang Shuchang et al.

  . 1997, 1(2): 9-0.

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  Shannong No.1 is a F 1 Hybrid crossing more female line R89 3 7 5 and R89 3 8 6 inbred line.It has the characteristics of hot resistance,high yield and early maturity,and was extended in Shan dong and Guang dong.The yield is 45.0～52.6t/ha.
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  A New Early and Heat Resistant Variety of Heading Chinese Cabbage Weibai No.1

  Han Taili;Feng Lerong;Yang Changhua et al.

  . 1997, 1(2): 10-0.

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  Weibai No.1.is a F 1 hybrid of Chinese cabbage crossing two self incompatible lines,Zhangpu 403 and zhexiao 401.It has early maturity,heat resistance and high yield.The growth period was about 45-50 days from transplanting to harvesting.The yield was about 75t/ha, better than`Xiayang ,the control variety,it is grown in Hubei,Hunan,Guangdong,Guizhou.