20 January 2000, Volume 1 Issue 1

    

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研究论文
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  灰色系统理论在蔬菜新品种综合评估与审定中的应用

  Gong Jianhua

  . 2000, 1(1): 4-0.

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  The article introduced the basic principle and method of relational grade analysis in grey system theory. The example was done with material of pepper hybrids regional test for approaching the application of grey relational grade analysis on new vegetable varieties’comprehensive evaluation and examination. The result indicated that:Relational grade with different coefficients can be used as the index comprehensive evaluation and major basis of examination of new vegetable varieties.
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  Effect of Formula Organic Fertilizer on Environment,Yield and Quality of Cherry Tomato Grown in Media

  Lin Chunhua;Huang Lianghua

  . 2000, 1(1): 6-0.

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  The experiment on application of formula organic fertilizer and nutrient solution for cherry tomato production in growing media. The results showed that:using pure chicken manure decreased cherry tomato yield;using chicken manure mixed with inorganic compound fertilizer increased cherry tomato yield and incomes;using chicken manure mixed with peanut cake,chicken manure mixed with tea seed cake or chicken manure mixed with peanut cake and tea seed cake increased cherry tomato quality as well as yield a...
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  Sowing Date and Varieties Comparison of Autumn Lettuce

  Cheng Yufu;Jiang Dunyun;Zhao Youwei

  . 2000, 1(1): 7-0.

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  The experiment on 4 different sowing dates with 7 varieties of Autumn lettuce was conducted,the results showed that earlier bolting is closely correlated with sowing date and varieties. Wide round leaf va rieties are tolerant to bolting,long round leaf varieties take the second place and spear leaf varieties are easy to bolting. The optimum sowing date of autumn lettuce is in the middle of August in Yangzhou district and there are many varieties for the sowing date. If sowing date were ahead of the m...
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  Inheritance of Black Spot Resistance in Chinese Cabbage

  Yang Guangdong;Li Yane;Xue Jianbin;et al.

  . 2000, 1(1): 9-0.

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  Two black spot resistant lines and two lines susceptible of Chinese cabbage were used as main materials to make populations of F 1,F 2,B 1C 1 and B 1C 2,and resistance identification in these populations by artificial inoculating black spot ( Alternaria brassicae ) was conducted to explore the inheritance regularity in Chinese cabbage. The results showed that the resistance is dominant inheritance and is controlled by a single dominant gene.
试验研究
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  Safety Test of 50% Phoxim EC on Young Soybean Plants

  Wang Jianxin;Zhang Guisong

  . 2000, 1(1): 11-0.

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  After two safety tests,it was recommended that the degree of injury to young soybean plants caused by phoxim can be comprehensively estimated by symptoms on leaf surface,obstruction of inner leaf growth,and the ability of growth recovery after injury. Based on this recommendation,the methods of grading injury were developed. Precipitate in the insecticide solution and uneven emulsion were major causes of injury. Application of phoxim on soybean crops must be done with caution,and the insecticide can be appl...
研究论文
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  A New Bitter gourd F_1 Hybrid—Xiang Kugua No.4

  Huang Yanwu;Xue Dayu

  . 2000, 1(1): 12-0.

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  Xiang Kugua No.4’is a new F 1 hybrid of green bitter gourd. It has characteristics of early maturity,high yield,good quality and high resistance to disease. It takes about 45 days from transplanting to the first harvest. Its yield is generally 42t·hm -2 . It is suitable for cultivation in Hunan,Hubei,Sichuan,Jiangxi etc.
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  A New Heading Chinese Cabbage F_1 Hybrid—‘Gaokang No.2’

  Su Xuejun;Yang Xianmei;Li Huayin;et al.

  . 2000, 1(1): 13-0.

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  Gaokang No.2 is a mid late maturing F 1 hybrid developed by crossing two self incompatible lines,92 47 and 92 226;highly resistant to TuMV,downy mildew and soft rot,and suitable for storage. Its yield is about 105t·hm -2 ,it is 24.24%～45.6% and 2.33%～7.08% higher than the check Lubai No.8 and Lubai No.10,respectively.
品种选育
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  A New Spring Cabbage F_1 Hybrid — Qiangan No.2

  Meng Pinghong;Wu Kangyun;Li Qiteng

  . 2000, 1(1): 14-0.

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  The new spring cabbage F 1 hybrid — ‘Qiangan No.2’,was bred by crossing two self incompatible lines,g 47 4 3 7 2 and E 4 2 45 1 . It has green outerleaf,flat and tight head,short central post,early maturing,to lerance to bolting before maturity,high yield and nice quality. It is suitable for cultivation in Guizhou province and other region with similar climate to Guizhou. Key words Tolerance to bolting, Spring cabbage, Qiangan No.2, F 1 Hybrid, Breedingievements.