20 May 1999, Volume 1 Issue 3

    

• Select all
  |

研究论文
• Select
  Identification of Rootknot Nematode (M.spp) on Tomato in Heilongjiang Province and the Screening of Resistant Materials

  Yu Qiuju;Li Jingfu;Xu Xiangyang;et al.

  . 1999, 1(3): 5-0.

  Abstract ( ) Download PDF ( )   Knowledge map   Save

  This experiment investigated rootknot nematodes on tomato in Heilongjiang province in 1997-1998. Nematodes happened seriously only in greenhouse in Daqing. Morphological identification showed that this nematode was Meloidogyne incognita. The identifying technique of tomatos seedling resistance to rootknot nematode is that 30 days seedling inoculated 5 000 individuals per plant in 10 cm deep. Data were recorded in 50 days after inoculation. By adopting this identifying technique,two immune,four highly resist...
• Select
  Studies on Conditions for Sporulation and Inoculation of Uredospores of Cowpea Rust Pathogen

  Zeng Yongsan;Wang Zhenzhong;Zhao Chen

  . 1999, 1(3): 6-0.

  Abstract ( ) Download PDF ( )   Knowledge map   Save

  The uredospores of cowpea rust pathogen,Uromyces vignae,were tested for their conditions of sporulation and inoculation. Successful sporulations were always obtained when the uredospores were incubated on sterilized tap or distilled water,1 % glucose,1 % sucrose,leaf extract of cowpea seedlings or surface of separating leaves. There were no significant differences in the sporulation percentages among treatments. The best one occurred on sterilized water at 25 during partlight and partdark. Spray inoculatio...
• Select
  Effect of Vernalization and Gibberellin of Growth and Flowering Time in Heading Chinese Cabbage

  Sun Rifei;Zhang Shujiang;Si Jiagang;et al.

  . 1999, 1(3): 7-0.

  Abstract ( ) Download PDF ( )   Knowledge map   Save

  Effect of vernalization time and gibberellin (GA3) concentrations on flowering time,the number of leaves and plant height was investigated in early and late heading Chinese cabbage (Brassica campestris L. ssp. pekinensis) under the conditions of greenhouse with 5 000KG*9lx supplementary light for 12 h. The results show that the longer germinated seeds were treated under 3 ,the less flowering days from sowing to flowering,the less number of leaves and the higher plant height were observed. GA3 treatments gav...
• Select
  茎芥菜(茎瘤芥)单株产量与主要性状的关系

  Liu Yihua

  . 1999, 1(3): 8-0.

  Abstract ( ) Download PDF ( )   Knowledge map   Save

  The relationship between yield per plant and 6 different characters was analyzed by use of 22 tumorous stem mustard varieties. The results showed that the tumorous stem diameter was the most important characters to affect the yield per plant. The effects of 6 characters on yield were arranged from large to small in order of the action of character on yield:tumorous stem diameter,whole plant fresh weight,length of the largest leaf,width of the largest leaf,root fresh weight and tumorous stem length. High yie...
• Select
  Effect of Dryheat Treatment on Seeds Vigour Seeds of Radish

  Meng Shuchun;Kong Xianghui

  . 1999, 1(3): 9-0.

  Abstract ( ) Download PDF ( )   Knowledge map   Save

  The effect of dryheat treatment at 76 with various time and moisture content on seeds vigour of Radish was studied. The results showed that the effect of dryheat treatment at 76 were not significant on germination rate for different basis moisture content of Radish seeds,but significant on seed vigour,seedling length and vigour index of seeds. The more harmful effect on the seeds,the higher moisture content and the long time treated. It was safe to treat seeds with 6.9 % moisture for 12 h and seeds with ...
品种选育
• Select
  Breeding of New Chinese Cabbage Hybrid Yubaicai No.8

  Liu Weihong;Zheng Weiyin;Song Baolin

  . 1999, 1(3): 11-0.

  Abstract ( ) Download PDF ( )   Knowledge map   Save

  Yubaicai No.8 is a new early maturity F1 hybrid by crossing two selfincompatible lines,An 16 and Xia 23. The variety has multiple disease resistances,high quality,early maturity,high yield and good marketing characteristics. It can be harvested in 5560 days after sowing. The yield is about 58.7670.66 thm-2. Its yield and commercial quality were much better than Xiaoza 56 and 898.
• Select
  Breeding of New Chinese Cabbage Variety Zaoshu No.6

  Wei Shunlian;Song Minxia;Hu Qizan

  . 1999, 1(3): 12-0.

  Abstract ( ) Download PDF ( )   Knowledge map   Save

  Zaoshu No.6 was crossed with two selfincompatible lines of 70P3 and 10825. It has early maturity,high yield and good quality. It resists TuMV,downy mildew and soft rot. Its yield is generally 60-75 thm-2 and even over 90 thm-2.
• Select
  Development of New Chinese Cabbage Variety Beijing Xiaoza No.61

  Chen Guang;Xu Jiabing;Yu Yangjun;et al.

  . 1999, 1(3): 13-0.

  Abstract ( ) Download PDF ( )   Knowledge map   Save

  Chinese cabbage F1 hybrid Beijing No.61 was developed by hybridization between selfincompatible line 8540 and 82137. It is characterized by early maturing,heat tolerance,disease resistance,tight heading,high quality,and high yield. This variety has approved by Beijing Variety Committee,and extended in Beijing,Henan,Shandong,Xinjiang,Sichuan,Fujian,Liaonin.
• Select
  Breeding of New Pea Variety Shijiatiancuiwan No.1 for Edible Pods

  Liu Ying;Jing Shuzhong;Zhang Lizhu;et al.;

  . 1999, 1(3): 14-0.

  Abstract ( ) Download PDF ( )   Knowledge map   Save

  Shijiatiancuiwan No.1 was developed by pedigree selection from cross of Zhongshanqin and Shijiadacaiwan No.1. It has the characteristics of early maturity,high yield,good quality and excellent marketability. Its fresh pods yield 11.4-13.5 thm-2. The plant is 74 cm high with white flower and dark green pods. One hundred pods weighs about 850 g. It can be harvested 150 days after sowing in Sichuan basin,and 90 days in Yunnan,Guangxi and Fujian.