18 November 2007, Volume 1 Issue 11

    

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研究论文
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  Analydid of Amino Acid Contents in Tai-tsai Varieties

  Song Tingyu;Hou Xilin;He Qiwei;Wu Chunyan;Xu Yuanfang

  . 2007, 1(11): 8-10.

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  Kinds and contents of amino acids were analyzed with four tai-tsai varieties.The results indicated that there were seven kinds of essential amino acid to human body in tai-tsai,and aliphatic amino acid was the main component in tai-tsai,aromatic and indolyl amino acid also accounted for a large proportion.
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  The Effects Brassinolide on Inflorescence Differentiation,Photosythesis Charasteristic and Quality in Broccoli

  Wang Tingqin;Yang Xian

  . 2007, 1(11): 10-12.

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  The effects of brassinolide(BR)with three treatments(0.001,0.01 and 0.1 mg·L-1)were studied on Broccoli.The inflorescence differentiation,photosythesis charasteristic,chlotophyll content of leaves and the quality of curd were investigated.The results showed that three treatments promoted inflorescence differentiation.0.001 mg·L-1 BR could increase the content of cholophyll and improve photosynthesis.0.001,0.01 mg·L-1 BR could accumulate more dry matter,0.1 mg·L-1 BR could raise the total sugar content of cu...
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  Nutrient Components in Leaflets and Petioles of Water Dropwort

  Wang Yan;Jiang Jizeng;Huang Kaifeng

  . 2007, 1(11): 13-15.

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  Contents of 11 kinds of nutrient components and their differences in different cultivation conditions were tested in leaflets and petioles of water dropwort.The results showed that the contents of nutrient components in plants propagated by thick scapes were higher than those by thin scapes,and the contents in open field cultivation were higher than those in protected cultivation.The contents of Ca,Mg,Na,Fe,Zn and soluble protein,vitamin C,carotene,mannitol and total flavones in leaflets were higher than th...
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  The Pathogens and the Biological Characterstics from Yellowing and Wilted Eggplant in Part of Beijing Area

  Cheng Yuhui;Liu Fuzhong;Lian Yong

  . 2007, 1(11): 16-19.

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  Two kinds of pathogens,Fusarium oxysporum f.sp.melongenae and Verticillium dahliae,were isolated from wilted eggplant in part of Beijing area.The results showed that in PSA medium,for Fusarium oxysporum f.sp.melongenae and Verticillium dahliae,the optimum growth temperature is about 20-25 ℃,pH 6-7.Hyphae of Fusarium oxysporum f.sp.melongenae were thick in PDA medium.Hyphae of Verticillium dahliae grew rapidly in VBC medium.The optimum nitrogen source for Fusarium oxysporum f.sp.melongenae was peptone,the op...
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  Influence of Sub-low Temperature on the Growth of Cucumber(Cucumis sativus L.)Grown in Greenhouse

  Xiong Zuoming;Yuan Wei;Chen Xuehao;Xu Qiang;Chen Chunhong

  . 2007, 1(11): 19-21.

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  Differences of plant height,leaf area,photosynthesis rate,chlorophyll content,the fresh and dry weights of root,stem and fruit,and the total dry weight of cucumber(Cucucmis sativus L.)were investigated under the optimal(25 ℃/18 ℃,day/night)and sub-low(21 ℃/15 ℃,day/night)temperature regimes.The results showed that SPAD,photosynthesis rate,leaf area,plant height,the fresh and dry weights of stem and leaf were lower under sub-low temperature than those of optimal temperature.However higher fruit number,higher...
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  Effects of Low Temperature on Physio-biochemical Index in Spinach

  Zhang Nan;Qin Zhiwei

  . 2007, 1(11): 22-24.

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  To figure out the effects of low temperature on physio-biochemical index in spinach,the activity of POD,MDA content,the soluble sugar content,the chlorophyll content,the permeability of cell membrane were tested with two spinach cultivars(Bandolero and S&G).The results showed that under the low temperature,the activity of POD increased in the early time and then decreased,MDA content,the soluble sugar content and the relative electrical conductance increased,chlorophyll content decreased.MDA content,the sol...
品种选育
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  A New Cucumber F1 Hybrid—‘Shuiguohuanggua No.1’

  Zhang Shoucai;Li Lei;Qin Yuhong;Dai Xianzhi;Wang Pu

  . 2007, 1(11): 25-26.

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  Shuiguohuanggua No.1 is a new cucumber F1 hybrid developed by crossing 456-5-12hun with 79033-18-2-3-1-2-5-1hun.It grows vigorously.The average fruit weight is about 115 g.Fruits are green,sweet and crispy with highly marketable percentage.The fruit neck is about 2.3 cm which is about 1/7 of the fruit length.Its yield is 112.5 t·hm-2.It has stronger resistance to powdery mildew,augular leaf spot,downy mildew and Fusarium wilt than cuilu,xintaimici and qingyanhuanggua No.1.
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  A New Sponge Gourd F1 Hybrid—‘Zaoyou No.3’

  Wang Anle;Zhu Haiquan;Zheng Wenqiao;Zhang Wanglong

  . 2007, 1(11): 27-28.

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  Zaoyou No.3 is a new sponge gourd F1 hybrid developed by crossing female parent S-03-8 with male parent S-03-98.The first fruit occures at 6th-8th nodes and the fruit setting ability is strong.The fruit is short with green skin,tender flesh and sweet taste.The average fruit is 23 cm in length and 5.5 cm in diameter and 476 g in weight.Its yield is about 45 t·hm-2.
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  A New Watermelon F1 Hybrid—‘Huadu'

  Wang Gang

  . 2007, 1(11): 29-30.

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  Huadu is an early maturing watermelon F1 hybrid developed by crossing XH-15 as female parent with BM-16 as male parent.The fruit is round,green rind with dark green indention stripes and red flesh.The average fruit weight is 5-7 kg.The total yield is 60 t·hm-2.It has stronger resistance to anthracnose and Fusarium wilt than Jingxin No.1.It is suitable for cultivation in early spring.
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  A New Watermelon F1 Hybrid—'kaixuan'

  Xu Xiaoli;Chang Gaozheng;Jing Yancai;Li Xiaohui;Niu Yili

  . 2007, 1(11): 31-33.

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  Kaixuan is a new watermelon F1 hybrid with mid-maturity.It has 105 days of the whole growth period and 33 days of fruit developing period.The variety has oval-shaped fruits with fruit index of 1.43,green stripe skin.The central soluble solid contents is 12.4 %.The average watermelon weighs 7-8 kg and the average output is 52.5 t·hm-2.The thousand seed mass is about 68 g.
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  A New Pakchoi F1 Hybrid—‘Jinglv No.7’

  Zhao Xiuyun;Xu Jiabing;Zhang Lanfeng;Yu Yangjun;Zhang Deshuang;Lu Guixiang

  . 2007, 1(11): 33-34.

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  Jinglu No.7 is a new pakchoi F1 Hybrid bred by crossing two self-incompatible lines Y134 and Y105.The leaf is dark green and the petiole is green with 5.7 cm in width and 1.0 cm in thickness.The average plant weight is about 0.25 kg and its yield is 36 t·hm-2.It is high resisitant to black rot,resistant to virus,black leaf spot rot and tolerant to bolting.It is suitable for cultivation in winter and spring in the north of China.
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  A New Chinese Cabbage F1 Hybrid—'Dongnong 907'

  Zhang Yaowei

  . 2007, 1(11): 35-36.

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  Dongnong 907 is a new Chinese cabbage F1 hybrid developed by crossing inbred line 23-2 with self-incompatible line 88-4-1.It is mid-maturity.Its head shape index is 1.5.It takes only 70 days from sowing to harvest,The single plant weight is about 3.0-3.5 kg.The rate of clear vegetable is 78.2 %.The net yield is about 82.5 t·hm-2.It is resistant to TuMV,soft rot and downy mildew.It is suitable for cultivation in Heilongjiang,Jilin,Inner Mongolia and Yunnan.
专题综述
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  Review on Powdery Mildew and Its Resistant Genetics and Breeding of Pepper

  Wang Xuan;Li Baoju;Wang Lihao;Zhang Baoxi

  . 2007, 1(11): 37-41.

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论文
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  The Origin and Evolution of Chinese Cabbage

  An Zhixin;Sun Deling;Zhao Zongwu;Meng Liangqing

  . 2007, 1(11): 41-44.

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  The literature of Chinese cabbage were reviewed and revised.AFLP technique was used for analyzing and comparing the genome relationship between Chinese cabbage and turnip by cluster analysis.The F3 population from the cross of Zhongqingmaye(Chinese cabbage)with Siyueman(pakchoi)existed many different morphological individuals and white seedlings.The F9(selfed progeny)occured variation of overlaped head leaf.