1996, 15(4).
Abstract:The present paper descibes the characters of pathogenic bacteria of bacterial septicemia in mandarinfish (Siniperca chuatsi B.).The seven strains isolated from the ascites of the infected mandarinfish was shown to be the cause of the disease and death of
1996, 15(4).
Abstract:The present paper describes the morphological characters of the rare cladocera genus Bunops (Crustacea : Diplostraca) and B.scutifrons a new record species in China.The key to species of this genus are given.
1996, 15(4).
Abstract:trees of 17.5-year-old loblolly pine grown in three different sites were collected. Variations of tracheid length(TL) and microfibril angle(MFA) in secondary layers of tracheid wall, as well as the relationship between TL and MFA were studied. In radial d
Ye Zhibiao , Li Hanxia , Zheng Yonglian , Liu Houli
1996, 15(4).
Abstract:The antisense cDNA clone of 1-aminocycloprapane-1-carboxylic acid (ACC)oxidase gene was ransformed into tomato genome mediated with Ti plasmid vector. The ACC oxidase activity and ethylene production rate were significantly inhibited in the leaves and fru
Tie Shuanggui , Zheng Yonglian , Chen Xianchen , Liu Dingliag , Liu Xunjia
1996, 15(4).
Abstract:The EST GOT and CAT allozyme of maize were analyzed by hrizontal starch gel eletrophorsis.The samples for seven treatments were gathered among five different genetic background materials of maize. The results indicated that the allpzyme pattern varied gre
Yang Guangsheng , Fu Tingdong , Ma Chaozhi , Yang Xiaoniu
1996, 15(4).
Abstract:Five restorers of polima cytoplasmic male sterile (pol CMS) can not restore the fertility of dominant genic male sterility(DGMS).A dominant male sterile gene from both a DGMS line Rs1046 and a DGMS hybrid Zhongza 3 was introduced successfully into polima
1996, 15(4).
Abstract:1993~1994年以华苎2号为材料,进行了4种施氮水平和3种栽植密度的试验,结果表明,在每hm ̄2施纯氮0~472.5kg范围内,随施氮量增加,茎、叶生长加速,分蘖增多,各产量因素的构成比较协调,原麻产量增加,但纤维支数有所下降。每hm ̄2产原麻2250kg的最佳施氮量为375kg氮。每hm ̄2栽植密度在22500蔸至37500蔸范围内,旺长期生长速度是密植快于稀植,分蘖数、有效茎数、鲜茎重、干物重、原麻产量等是密植高于稀植,纤维品质密植优于稀植,但随着麻龄延长,密植增产效应逐渐降低。
Liu Xuequn , Du Ailing , Wang Chuntai , Lin Yun
1996, 15(4).
Abstract:以碱提取、酸沉淀的方法从樟树叶片中分离得到一种棕黑色粉末,该提取物主要为有色化合物A和B的混合物,化合物A的含量成倍高于化合物B;经silicagel、Al_2O_3及sephadexG-25柱层析分离纯化等步骤,得到纯化的红棕色化合物A,经PAGE、PLC及TLC检测均为单一谱带或单一斑点;该化合物熔点为280.29℃,λ_(max) ̄(KOH)为213nm,E1cm1%为342.5,肩峰为257nm,pI为3.7,对大肠杆菌、金黄葡萄球菌、巨大芽孢杆菌、枯草杆菌及毛霉有较强的抑菌活性。
1996, 15(4).
Abstract:The data about insects on the stored TCM materials in 17 regions of Hubei Province were analysed systematically and the diversity(H'), evenness(J'), and richness(S)of the communities were determined. Mountford's similarity index was used for the numerical
Wang Mo , Tan Fujie , You Ziping
1996, 15(4).
Abstract:Resistance mechanism of cotton bollworm [Helicoverpa armigera (Hubner)]to fenvalerate was studied with esterase inhibitor TPP, mixed function oxidase (MFO)inhibitor PBO, 14C-fenvalerate and field populations of cotton bollworm which had different resistan
1996, 15(4).
Abstract:Four soils derived from Q_2 and quartizite sandstone parent materials and four application rates of 0,0.3,0.6,0.9gK_2O/kg were adopted for pot culture experiment.The effects of potassium chloride application on growth and element accumulation of rape seed
Li Xuewu , Chen Huanchun , Wu Bin , Jin Meilin , Fang LiurOng
1996, 15(4).
Abstract:对两株伪狂犬病毒在4、28、37℃下进行血凝试验(HA)和血凝抑制试验(HI)。试验结果表明,伪狂犬病毒能够凝集小白鼠红血球,HA可被抗伪狂犬病毒的高免血清特异性抑制(1:64)。并不受温度的影响。因此,该方法是诊断伪犬病的一种快速、简便、易于推广的方法。
Long Liangqi , Bai Dongqing , Tang Baogui , Xiong Bo
1996, 15(4).
Abstract:In this experiment, the activity, optimum pH and substrate concentration of protease in pancreas, stomach, three parts of gut in Trionyx sinensis were determined. The results showed that, stomach's and pancreas's protease activity were both obviously high
Yang Xiuping , Huang Xiangzhu , Zhang Xunpu , Jin Xiaoping , Pan Fan
1996, 15(4)-369,T002.
Abstract:用扫描电镜对鳜的口、咽腔味蕾的形态及数量进行了研究。结果表明:鳜的味蕾味孔小于一般硬骨鱼类的味蕾味孔。鳜的口、咽腔中有3种类型的味蕾,呈簇状不均匀地分在于齿间上皮之中。幼鱼咽腔中的味蕾较其它区域密集,数量也较多。而仔、稚鱼以唇中的味蕾数较多。3种类型的味蕾中,以Ⅰ、Ⅱ型味蕾占绝不多数,Ⅲ型味蕾较少。但年龄愈小,Ⅲ型味蕾所占比例愈大。以上结果说明:(1)味蕾在鳜幼鱼的吞咽活动中及在仔、稚鱼的摄食活动中有着特殊的作用。(2)Ⅲ型味蕾的化学感觉作用对仔鱼的摄食有着更重要的作用。
1996, 15(4).
Abstract:Irradiated with different dosages of soft X-ray, pollen germinations of prunus baimang,pear kieffer,trifoliate orange and pummelo, were investigated immediately or several days later after irradiation. The results revealed that the pollens of these fruit
Luo Zhengrong , Chi Lihng , Hu ChUngen
1996, 15(4).
Abstract:There are about 190 species of Diospyros in the world. They mainly distribute in the tropic and subtropic zone, especially in East Asia. 57 species, 6 varieties and 1 forma of them are in China and mainly located in Southwestern and South districts.The Di
Ma Ying , Li Minghe , Shen Baoxian , Yu Fengwen
1996, 15(4).
Abstract:Upper branches of mature plus trees and root systems of Seedlings of Chinese fir were taken and grafted together.The lower stem portions of the grafts were horizontally buried in earth. After sprouts appeared from the buried stems and root systems develop
Chen Yuqiong , Ni Dejiang , Ding Xiaofei
1996, 15(4).
Abstract:The main chemical constituents and qualities of Luzhen famous tea manufactured by cold rolling, heat rolling and hot rolling were thoroughly studied.The results showed thatthe heat rolling method was the most benificial to the quality of end product of th
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