18 March 2006, Volume 1 Issue 3

    

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研究论文
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  Cloning and Sequence Analysis of Turnip Mosaic Virus Coat Protein Gene

  Zhuang Mu;Wang Xiaowu;Li Yanshuang;et al.

  . 2006, 1(3): 6-8.

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  Two samples of turnip mosaic virus,which infected cabbage and turnip in Beijing,were named TuMV-BJ1 and TuMV-BJ2,respectively. The CP genes of TuMV-BJ1 and TuMV-BJ2 were sequenced after being cloned into pMD18-T Vector,and were compared with the CP gene sequences of TuMV reported in GenBank. The results showed that the CP genes of TuMV-BJ1 and TuMV-BJ2 were all 867 nucleotides and coded 288 amino acids in length,and nucleotids homology was 97.2 % and amino acids homology was 97.6 %. They all shared,with the...
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  Changes of Some Aromatic Compounds and Relative Factors during Fruit Development of Cucumber

  Liu Chunxiang;He Qiwei;Ai Xizhen

  . 2006, 1(3): 9-12.

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  Some aromatic compounds,their precursor and two relative enzymes were investigated on cucumber fruits developed 3 days,6 days,9 days,12 days,15 days; sugar contents and pericarp firmness were also measured. The results showed that sugar contents and lipoxygease reached the highest level in fruits developed 6 days,while trans-2-nonenal and trans-2-,cis-6-nonadienal amount reached peak level in fruits developed 12 days. The paricarp firmness and activities of LOX increased with the fruit development,while one...
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  Studies on Basic Indices of Tomato Seedling Quality Decline under Simulated Storage and Shipment Conditions

  Ning Wei;Ge Xiaoguang;Li Tianlai

  . 2006, 1(3): 12-14.

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  The changes in some principal morphological and physiological indices of tomato seedlings before and after transportation and storage were investigated. Results indicated that during transportation and storage,root viability,chlorophyll content and respiration intensity decreased. From the morphological,physiological changes observed in tomato seedlings after transportation and storage. It was clear that apparent quality decline occurred in seedlings after a short period of transportation and storage. Seedl...
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  issue Culture and Mass Propagation of Chinese Arrowhead

  Zhu Honglian;Ke Weidong;Wang Liping

  . 2006, 1(3): 15-17.

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  The shoot tip of Chinese arrowhead was used as explant,the explants were cultured on the media with different hormones. An effective mass propagation technique had been developed for Chinese arrowhead from shoot tips in vitro. The results showed that the favorable medium for induction was MS+6-BA 1.0 mg·L~ -1 +NAA 0.3 mg·L~ -1 ;the best medium for regeneration was MS+6-BA 3.0 mg·L~ -1 +NAA 0.1 mg·L~ -1 ,the propagation coefficient could up to 4.35.
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  he Controlling Effect of 25%SYP-Z048 EC and Its Preparation on Gray Mold of Vegetables

  Shi Yanxia;Li Baoju;Li Huili

  . 2006, 1(3): 17-19.

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  The effect of 25 %SYP-Z048 EC and its preparations,30 %SYP-Z048·diethofencarb SC and 40 %SYP-Z048·thiram SE on gray mold disease by Botrytis cinerea was estimated in this paper. The results showed the effect was obvious that 25 %SYP-Z048 EC controlled diseases,and the best efficacy got at 80.80 %. Besides,its preparations had obviously enhancive effect. So 25 %SYP-Z048 EC and its preparations could act as well bactericide.
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  Acumulation Capacity of Heavy Metal Elements in 8 Wildvegetable

  Yao Quansheng;Lei Xintao;Luo Wenyang;Wang Chengyi;Feng Wenxing

  . 2006, 1(3): 20-21.

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  Transfor of Chinese Cabbage GMS Line of Qingeng Packoi

  Wang Yugang;Xu Wei;Feng Hui;Lin Guirong

  . 2006, 1(3): 21-22.

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  The Effect of Different Mulch Materials on Sweet Corn Growth in Spring

  Lv Zhoulin;Yao Hong;Zhang Weimei

  . 2006, 1(3): 23-23.

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品种选育
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  A New Cucumber F_1 Hybrid—‘Jinyou No.33’

  Yang Ruihuan;Ha Yujie;

  . 2006, 1(3): 24-26.

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  Jinyou No.33 is a new cucumber F_1 hybrid bred by crossing P4 and 242.It is high tolerant to chilling and low light,and is resistant to downy mildew,powdery mildew and grey mildew. Its plant grows vigorously and it yields 90 t·hm~ -2 in winter greenhouse. Average fruit is 30-32 cm in length and 175 g in weight. Fruits are dark green,sweet and crispy,with good quality. It is suitable for greenhouse cultivation in winter.
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  A New Hot Pepper F_1 Hybrid—‘Ejiao No.1’

  Yao Minghua;Qiu Zhengming;Lu Xiuying;et al.

  . 2006, 1(3): 26-27.

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  Ejiao No.1 is a new hot pepper F_1 hybrid developed by crossing two inbred line 9702 and 9710. It is middle maturity.Average fruit is 11.4 cm in length and 40 g in weight with ox-horn shape,green skin and good quality. It has stronger resistance to TMV,phytophthora blight and sunburn than Huajiao No.17. The average yield is 60 t·hm~ -2 . It is suitable to cultivate in open field and cultivate after harvesting rape and wheat.