20 September 2004, Volume 1 Issue 5

    

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试验研究
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  Effect of High Temperature on Yield and Quality of Different Cucumber Cultivars

  Meng Lingbo;Qin Zhiwei;Li Shumin;et al.

  . 2004, 1(5): 4-6.

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  Experiments were carried out to study the effect of high temperature stress on the yield and quality of different cucumber cultivars by controlling glasshouse ventilation. The cucumber was simultaneously treated in tunnel as control. The results showed that the yield of cucumber decreased under high temperature, but the responses were different among different varieties. The yield and yield change rate of cucumber could be the index for testing high temperature tolerance in mature plant stage. Compared wi...
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  Studies on Nutrition and Edibleness of Leaf and Shoot of Yam Variety‘Guihuai No.2’

  Wei Weitai;Wei Benhui;Gan Xiuqin;et al.

  . 2004, 1(5): 7-8.

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  Nutrition and edibleness of leaf and shoot of new yam variety Guihuai No.2 were studied. Results showed that the protein content of leaf and shoot was 2.82 %, lower than pea shoot and higher than other vegetable seedlings; meal fibre was 4.46 %,which was the highest among the same type vegetable seedlings; the contents of heavy metal and organophosphorus pesticide were far lower than the standard;the MTD toxicity test with the mouse showed to be at the nontoxic level.
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  Study on Biological Characteristics of Zizania aquatica L.

  Wang Changchun;Yang Dehai;Qian Zhilong;et al.

  . 2004, 1(5): 9-11.

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  Zizania aqutica L. is called wild water bamboo root, belongs to Gramineae. Its root is fibrous system. Its stalk consists of upper ground part and under ground part. The leaf consists of sheath and blade. It has cone shaped anthotaxy. It develops new buds and roots in spring. The growth rate accelerates with temperature increasing. Its tasseling,blossoming and fruiting appear in summer and autumn. The stalk are propagation organs. It grows well from 10 ℃ to 28 ℃.The cultivation field should be covered ...
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  Design and Application of MAP Bags for Cherry Tomato

  Wang Meilan;Zhou Zhicai

  . 2004, 1(5): 11-13.

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  When the respiration of fruits and the permeation of the plastic films was balanced, the concentration of oxygen and carbon dioxide can be spontaneously modified in MAP bags. In the article a line relationships between the concentration of O 2 or CO 2 and film thickness (D), area (A), cherry tomato weight (W)were established. According to the relationships,the MAP bag was designed.Stored in the MAP bags in 0 ℃ for over 60 days,98 % of cherry tomatos were good,while the fruits stored only at low tempera...
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  Studies on Biological Activity of Extract of Cinnamomum camphora(L.)Presl and Artemisia annua L. against Cabbage Worn

  Yao Anqing;Liang Dehua

  . 2004, 1(5): 14-15.

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  The contact poisoning and antifeedants effect of extract of Cinnamomum camphora and Artemisia annua against cabbage worn were studied. The result showed that the activity of extract of C. camphora-alcohol and A. annua-petroleum ether are better. Forty eight hours after experiment, the rates of antifeedants are 72.11 % and 57.86 %,and medium lethal concentrations of contact poisoning are 1.232 and 1.275 g·L -1 respectively.
品种选育
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  A New Cucumber F_1 Hybrid—‘Jinyou No.31’

  Li Jiawang;Zhang Wenzhu;Wang Jiang

  . 2004, 1(5): 16-18.

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  Jinyou No.31 is a new F 1 hybrid developed by crossing line C6 with M-6. It has early maturity, high resistance to Fusarium wilt,resistance to downy mildew, powdery mildew and scab. Its total yield is 120 t·hm -2, 48.1 % higher than that of Jinchun No.3. It is light tolerant to cold and weak during growing period. It has high marketable quality with straight, delicious and crisp fruit. Average fruit is about 33 cm in length and 180 g in weight. It is suitable for cultivation in solar greenhouse in wi...
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  A New Cucumber Variety—‘9801’

  Song Ruisheng;Shi Dongliang;Zhang Shulin;et al.

  . 2004, 1(5): 18-19.

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  is a new South China type cucumber variety bred by system selection and mixing seed collecting. Its growth is vigorous. Average fruit is about 12-14 cm in length and 100 g in weight. Its yield is about 70 t·hm -2. It is resistant to downy midew, Fusarium wilt and virus, and is suitable for open field cultivation in Hebei province and Northeast China.
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  A New Cucumber F_1 Hybrid —‘Luchun’

  Liu Jinglan;Lin Weishan;Guan Zhongyan;et al.

  . 2004, 1(5): 20-21.

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  Luchun is a new cucumber F 1 hybrid developed by crossing inbred line H32 with inbred line L2. It takes 37 days from sowing to harvest. The fruit is 20 cm in length, and is crispy with green skin. It has high resistance to Fusarium wilt, and resistance to downy mildew and ash mildew. It is suitable to be cultivated in early spring. The yield in open field is 60 t·hm -2.
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  A New Kidney Bean Variety—‘Jiangjunyoudou’

  Feng Guojun;Qu Min;Liu Dajun;et al.

  . 2004, 1(5): 22-23.

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  Jiangjunyoudou is bred by system selection after crossing Damazhang with Jiaquedan. It can be harvested in 65 days after sowing. It grows vigorously .The tender pod is green with small red strip on the end and is flat shaped with 20 cm long, 2.4 cm wide. Average pod weight is 24 g. The pod has less fibre with special good taste. It is resistant to anthracnose and rust.It is suitable for protected cultivation and open field cultivation.