20 July 2003, Volume 1 Issue 4

    

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试验研究
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  The Effect of Fertilizer with Different Anions on Photosynthetic Characteristics and Yield of Cucumber

  Li Haiyun;Wang Xiufeng;Wei Min;et al.

  . 2003, 1(4): 4-6.

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  The effect of fertilizer with different anions ( NO3- , SO42- , Cl- ) and three levels of fertilization amount on photosynthetic characteristics and yield of cucumber was studied in this experiment. The results showed that at the same fertilization level, all treatments of three kinds of anions increased chlorophyll content and stomatal resistance, decreased the net photosynthetic rate and transpiration rate of cucumber leaves;with the fertilization level increasing,the ratio of chla to chlb was increased i...
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  The Correlation between Freezing Point and Soluble Solids of Vegetables

  Wang Jie;Li Lite;Dan Yang

  . 2003, 1(4): 7-9.

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  The freezing points of 13 cultivars of vegetables were measured using a HP34970A data collector and contents of soluble solids were measured using a PR-101 (0 -45% )refractometer. The results show that there is a high negative correlation between soluble solids and freezing point(r = -0.9007, p <0.05). A mathematical model is created to demonstrate this relationship( Y = -0. 2419X -0. 3358,7 Stands for freezing point;X Stands for soluble solids). All the tissues of the 13 vegetables have typical freezing...
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  Effects of Eggplants/Tomato Grafting on Disease Resistance and Yield

  Wang Ruhua;Zhou Baoli;Zhang Qifa;et al.

  . 2003, 1(4): 10-11.

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  With eggplant as scion and tomato as root stock, effects of eggplants/tomato grafting were studied. The results indicated that the grafting enhanced disease resistance significanthy, promoted protential growth and increased yield, improved fruit quality to some extent as well.
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  Studies on Growing Media Screening for Agaricus blazei Murrill

  Ni Xinjiang;Yang Lihong;Liang Likun;et al.

  . 2003, 1(4): 12-13.

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  Eleven kinds of growing media were studied. A high-yield medium suitable for Agaricus blazei Murrill growth was screened out. Its formula was as follows: cotton seed hull 42 % , wheat straw 28 % , cow manure 20 % , wheat bran 5 % , lime 2.5%, calcium superphosphate 1 % , Ca( H2 PO4) 2 1 % , urea 0.5%. The output of Agaricus blazei grown in the medium could be up to 9.12 - 9. 59 kg·m-2,and biological efficiency was 39.65 % -41.70 %.
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  Multiple Fungidde-resistance of Tomato Botrytis cinerea in Guangxi

  Zhu Guining;Huang Fuxin;Cai Jianhe;et al.

  . 2003, 1(4): 14-16.

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  Multiple fungicide resistance of 259 Botrytis cinerea isolates collected from five sites in Gaungxi was detected to carbendazim ( B ) , procymidone ( D) and diethofencarb ( N). Resistance can be classified into six types according to being resistant (R) or sensitive (S). Among these BHNSDS type was 36. 3% ,the following were BSNRDS 24.7 % , BRNSDR20.1 %,BRNRDS6.9 % ,BSNRDR 5. 8% ,and BRNRDR was 6. 2%. The frequency of the isolates with multiple fungicide-resistance was 73.9 % in Hanyang,61.9 % in Tiandong,3...
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  Studies on the Biological Characteristics of Corynespora cassiicola

  Liu Mingtao;Zhang Dingfa;Sun Huatian

  . 2003, 1(4): 17-18.

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  The biological characteristic of Corynespora cassiicola were studied. Results showed that the hyphae could grow at the temperature range 10 - 35 ℃ ,and the optimum temperature was 30 ℃. The preferred temperature for spore germination was 10-35 ℃ , and the optimum range was 25 - 30 ℃. The germination needed a relative humidity of over 90% , and water drop was the optimum condition. Light could stimulate the hyphae growth, but inhibit the spore production. The spore can be killed by the ultraviolet light.
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  Effect of Nitrogen Form on Tsaitai( Brassica parachinensis) Growth and Nitrate Accumulation

  Yang Shaohai;Ai Shaoying.Yao Jianwu;et al.

  . 2003, 1(4): 19-21.

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  Solution culture experiment was carried out to sutdy variety difference of Tsaitai( Brassica parachinensis ) in nitrate accumulation with different form of nitrogen. It was indicated that 12 varieties were suitable to grow in only nitrate source or nitrate with small percent of ammonium source. Under the same nitrogen source, there were significant differences among varieties in growth biomass and nitrate accumulation quantities.
品种选育
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  A New Pepper F_1 Hybrid - Zhenhuang 88

  Ma Yanqing;Li Xuefeng;Zhang Zhuqing;et al.

  . 2003, 1(4): 22-23.

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  Zhenhuang 88 is a new pepper F1 hybrid with middle mature and yellow colour fruit. It is resistant to virus and phytophthora blight. Fruits are straight, good for storage and transpotation with high commodity quality. Average yield is 37.5 t·hm-2. It is suitable to culture in both protection and open field.
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  A New Watermelon F_1 Hybrid - Jingxiu

  Xu Yong;Gong Guoyi;Zhang Haiying;et al.

  . 2003, 1(4): 23-25.

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  The new mini fruit watermelon F1 hybrid Jingxiu is early maturity with 26 - 28 days from pollination to maturity, grows vigorously and has high capacity for setting fruits. The fruit is oval and green color with thin deep green stripes. Average fruit weight is 1.5 -2.0 kg. The red flesh is crisp and has excellent taste and flavor with 13 % soluble sugar content.
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  A New Mini-pumpkin Trihybnd Mininangua

  Jiang Shude;Lin Huiming;Chen Hugen;et al.

  . 2003, 1(4): 26-27.

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  Mininangua is a new trihybrid developed by crossing stable line 9803-1-15-4-1 as the female parent and stable line 9802-1-1-1-2 as the male parent and then backcrossing the female parent. The female and male parents are both introduced from exotic materials. It is specially suitable for cultivating in protected field. It yields over 30 t · hm-2 in spring and about 22. 5 t in autumn, and the average fruit weight is 200 - 300 g. It has excellent quality, pleasant appearance and long storage life.
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  A New Tomato F_1 Hybrid - Haifen 962

  Xue Baiyun;Xue Linbao;Ding Zhaohua;et al.

  . 2003, 1(4): 27-28.

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  Haifen 962 is a new tomato F, hybrid,both parent lines were selected from different crosses. It is indeterminate, early maturity,resistant to TMV,and has high soluble solid content of 6. 14 % in pink fruit. Average fruit weight is 171.0 -198.8 g. It yields 72 t· hm-2. It is suitable to grow in protected field.
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  A New Chinese Cabbage F_1 Hybrid- Sanyuanxiawang

  Zhu Xiaolei;Li Youchang;Wang Wenjun;et al.

  . 2003, 1(4): 29-30.

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  Sanyuanxiawang is a new Chinese Cabbage F1 hybrid developed by crossing two good self - incompatible varieties introduced from Taiwan and Beijing. It takes 55-60 days from sowing to harvest. The F1 hybrid is tolerance to heat,high resistant to virus,downy mildew and soft rot with average net yield of 43.2 -49.4 t·hm-2. The leaf head is tubby in shape with light green color,less hair and good quality. It has been extended to Shandong,Henan,Yunnan,Guizhuo,etc.
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  A New Sweet Pepper F_1 Hybrid- Hujiao No.1

  Lu Lifeng;Su Limin;Pang Zhuo;et al.

  . 2003, 1(4): 30-31.

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  Hujiao No.1 is a new sweet pepper F1 hybrid crossing 91-5-1-4 as female parent with 91-30-6-1 as male parent. It is early maturity, lantern-shape fruit, with thin wall, slight pungant, good quality and marketable character. Average fruit weights is 60 g. It yields 200 t · hm-2,and has been extended in Huhehot and Baotou of Inner Mongolia, Liaoning, Shandong, Hebei, Xinjiang for 220 hm2.
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  A New Cucumber F_1 Hybrid - Laifa No. 2

  Wang Yiqing;Li Min;Li Junliang;et al.

  . 2003, 1(4): 32-33.

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  Laifa No. 2 is a new cucumber F1 hybrid developed by crossing female line 1215 with inbred line Y9611. Its plant grows vigorously with high resistent to virus, downy mildew and powdery mildew. It takes only 65 days from sowing to the first harvesting. Fruits are 20-22 cm long, dark green and crispy with less frichome. Average fruit weight is 100 -120 g. It yields 87. 7 -97.9t·hm-2 in greenhouse, and is suitable for greenhouse cultivation from winter to spring in North China.
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  A New Cucumber F_1 Hybrid- Jiza No. 3

  Sun Hanyou;Zhao Dianguo;Yu Yingjun;et al.

  . 2003, 1(4): 34-35.

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  Jiza No. 3 is a new cucumber F, hybrid developed by crossing a selfline 88001 as a female parent and another selfline 88010 as a male parent. The maternal line 88001 was selected from Jinza No. 2 . The paternal line 88010 was selected from the cross hybrid of Jinyan No. 2 and Xintaimici . It is high resistant to downy mildew, powdery mildew and fusarium wilt. Its fruit is about 30 - 35 cm in length and 180 g in weight. It has good quality and high marketable percentage. Its skin is dark green with thic...