20 January 2002, Volume 1 Issue 1

    

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试验研究
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  Study on High Temperature Injury and Identification Method of Heat Tolerance in Cabbage

  Kang Jungen;Zai Yiren;Zhang Jingshe;et al.

  . 2002, 1(1): 4-7.

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  Experiments were carried out to study high temperature injury with 6 cabbage breeding materials by ways of electrolyte leakage,high temperature stress test in phytotron and greenhouse. The results showed that it was hard to distinguish the difference between heat tolerant materials and relatively heat tolerant materials by ways of electrolyte leakage and summer high temperature stress test,the phytotron test with the index of high temperature injury of leaf whilting was easy to tell the different h...
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  Prelimiary Study on Dynamic Changing of CO_2 Concentration in Sola Lean to Greenhouse During the Cultivation of Cucumber

  He Qiwei;Ai Xizhen;Sun Xiaolei;et al.

  . 2002, 1(1): 7-10.

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  On the basis of three years research work,the results showed that the seasonal and diurnal variation of CO 2 concentration in solar lean to greenhouse was obvious during the cucumber growth. CO 2 concentration was higher in November and March and lower in May. The pattern of diurnal variation of CO 2 concentration among seasons was similar,decreased with the increasing of photosynthetic and reached the lowest at 12:00-14:00 PM,then increased with the decreasing of photosynthesis. The major factors af...
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  Identification on the Resistance to Tunip Mosaic Virus for the Non-heading Chinese Cabbage Accessions in China

  Wang Shubin;Yuan Xihan;Su Xiaojun;et al.

  . 2002, 1(1): 11-12.

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  Identification on the resistance to tunip mosaic virus (TuMV) in Brassica campestris ssp. Chinensis Makino at seedling stage was conducted during the period of 1996-2000. Nine hundred and eighty two non heading Chinese cabbage accessions in China were tested for resistance to TuMV by mechanical inoculation in an insect free greenhouse. The result show that nine accessions were highly resistant (HR) to TuMV,making up 0.92% of the total accessions identified,forty nine were resistant (R) to T...
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  Study on Cutting Propagation of Toona sinensis

  Tu Bingkun;Wang Pengcheng;Ye Yaomei;et al.

  . 2002, 1(1): 13-15.

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  Using root cutting and shoot cutting,by means of the orthogonal design propagation of Toona sinensis was carried out. The results showed that root cutting was superior to shoot cutting,and long cutting was better than short cutting for propagation. There were some difference in rooting positions between the root cutting and the short cutting,Adventitious roots developed from callu and corium for the shoot cutting and root cutting respectively. Cutting propagation using root and shoot cutting could be us...
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  Effect of Potash on Growth and Yield and Quality of Brassica chinensis and Raphanus sativus

  Chang Lixin

  . 2002, 1(1): 16-17.

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  Results from a pot experiment with middle loam drob soil indicated that potassium application could accelerate growth of brassica chinensis and Raphanus sativus, increase content of protein,amino N and VC,decrease content of nitrate,and increase accumulation of potassium in plants.
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  Investigation of the Nutrient Solution Management of Tomato Cultivation in Modern Greenhouse

  Lü Weiguang;Zhao Jingyin;Yao Zheng;et al.

  . 2002, 1(1): 18-19.

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  The investigation on the nutrient solution management of tomato cultivation under modern greenhouse showed that ranges of pH in nutrient solution and drainage solution were 5.0-6.0 and 6.0-7.0 respectively. The EC value in drainage solution was 1.0ms·cm -1 higher than that in nutrient solution. The important factors affecting the amount of nutrient solution supply were light intensity and temperature. The amount of drainage was over 40% of irrigation amount. Tomato needed more N,Ca and Mg during vegeta...
品种选育
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  A New Hot Pepper F_1 Hybrid - Layou No.2

  Chang Shaodong;Huang Zhen;Huang Banghai;et al.

  . 2002, 1(1): 20-21.

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  Layou No.2 is a hot pepper F 1 hybrid developed by crossing excellent male sterile line 33A with restorative line 52. It is early maturity,resistant to phytophthora blight,southern bacterial and mosaic virus. The yield is 22.5-34.5t·hm -2 . Average fruit weight is 30-40g with smooth green skin and good quality. It has been extended to Guangzhou,Zhongshan, Zhaoqing and Guangxi etc.,with a total area of 280hm 2.
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  A New Tomato F_1 Hybrid - Xinxing 101

  Li Zhenxing;Zheng Jinrong;Huang Aixing;et al.

  . 2002, 1(1): 21-22.

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  Xinxing 101 is a new tomato F 1 hybrid developed by crossing female parent 114F 6 4 2 with male parent A45. It is resistant to bacterial wilt and TMV,tolerant to CMV,heat and cold. Its fruit is long round with high quality and resistant rack.
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  A New Chinese Cabbage F_1 Hybrid - Long Bai No.3

  Lu Yingjie;Shi Qingxin;Xu Wenlong

  . 2002, 1(1): 23-24.

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  Long Bai No.3 is a new Chinese Cabbage F 1 hybrid developed by crossing P 20 self incompatible line with 236. The shape of head is ox heart type with good quality. It is highly resistant to TuMV and downy mildew. Its yield is about 63.3～78.0t·hm -2 and is 20% higher than the check.
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  A New Cauliflower F_1 Hybrid - Feng Hua 80

  Zhang Baozhen;Sun Deling;Li Suwen;et al.

  . 2002, 1(1): 25-26.

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  Feng Hua 80 is a middle maturing cauliflower,a F 1 hybrid, bred by crossing two self incompatible line female parent 80 1 1 6 with male parent 65 10 1 2. It matures in 70-80 days after setting plants. The plant is semi open,tight and vigorous growth. The head is snow white,tight and tender,average head weight is 1.0-1.5kg. The yield per hectare is 37.5-60t and is higher than that of contract variety - Jin Xuan 3198 and Long Feng 60 remarkablely,approximate to or beyond the Japanese variety ...
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  A New Bitter Gourd F_1 Hybrid - Bilu

  Luo Shaobo;Gong Hao;Luo Jianning;et al.

  . 2002, 1(1): 27-28.

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  Bilu is a new bitter gourd F 1 hybrid developed by crossing inbred line 7 with Bing 301. The fruit is long conicform, light green in colour, 24.0-28.0cm in length,6.3cm in diameter,and average fruit weight is 0.29kg. Its yield is 52.5t·hm -2 ,it is tolerant to cold and middle resistant to fusarium wilt.