Wang Lijun ) Wang Yunhua ) Zhou Yilin ) Duan Xiayu ) Li Min ) Zhang Fusuo )
2001, 20(6).
Abstract:According to depositions of nanostructured silica in plants and chemically synthesized nanostructured silica sprayed into leaves and physical properties of leaf conferred by silica depositions as well, the first reaction of high specific supramolecular
2001, 20(6).
Abstract:Five serum protein(enzyme) loci ( Akp, PI 2, Po 1, Po 2, Cp ) were used to analyze the genetic structure and genetic variation of six Chinese indigenous pig breeds. The mean heterozygosity of the six breeds in order is Nanyanghei pig (0.4142), Nanche
Jin Deming ) Wang Weijin ) Lan Shengyin ) Xu Zhenxiu ) Yang Shuhua )
2001, 20(6).
Abstract:Two line hybrid rice Pei ai 64s/E32 is a pioneer cultivar released from the super high yield hybrid rice breeding program in China. This cultivar's super high yield potential is characterized by its big panicle. And the large number of secondary rachi
2001, 20(6).
Abstract:The callus induction and plant regeneration via tissue varies with the genotype and explant is the important factor in establishing cell selection and genetic transformative systems. The mature embryo's scutellum, immature embryo's scutellum and infloresc
2001, 20(6).
Abstract:油菜是我国乃至整个世界最主要的油料作物之一 ,我国常年种植面积为 6.0× 1 0 6~ 7.0× 1 0 6hm2 ,面积和总产量约占全世界的 1 /3[1 ] 。目前我国油菜生产面临两大改革 ,一是常规种改为杂交种 ,二是双高、单低种改为双低种。自交不亲和系杂种由于不具有不育胞质可能存在的负效应 ,恢复源广泛 ,F1 整齐一致等优点 ,被认为是油菜利用杂种优势最为有效的途径之一。关于甘蓝型油菜自交不亲和性及其杂种优势的研究国外报道较多[5~ 8] ,国内报道主要集中在 2 0世纪 70~ 80年代初[3~ 5] 。随着波里马雄性不育系的发现与利用 ,80年代中期以…
Zhou Guangsheng Mei Fangzhu Chen Yanhua
2001, 20(6).
Abstract:This paper analysed the changes of root vigor of six different varieties of winter wheat at different stages and relations between root vigor and yield characters. The results showed that, the trend of changes of root vigor at whole stages was much alike,
Song Dongbao ) , ) Chen Jiahua ) Yang Jianquan )
2001, 20(6).
Abstract:This paper deals with one new species of the genus Apanteles (s.l.) Foerster from China: Apanteles bannaensis sp.nov..The type of specimens is doposited in the Benificial Insects Lab.,Department of Plant Protection,Fujian Agriculture & Forestry Univ
Li Shaoqin ) Deng Wangxi ) Zhang Qiudong )
2001, 20(6).
Abstract:The seven varieties balsam pear ( Momordica charantia L.) leaves were extracted and hot extracted with three organic solvents including ether, acetone and ethanol. The effect of the extracted liquids on Liriomyza sativae was studied on killing a
Cui Zhixin ) Lin Jintian ) Zhao Shanhuan )
2001, 20(6).
Abstract:From experiments of respiration of nymphs of Chinese rice grasshoppers (CRG), Oxya chinesensis (Thunberg) using of infrared CO 2 analyser, markedly decrease of CO 2 of CRG treated by Azadirachtin was observed. The respiratory rhythm was inte
2001, 20(6).
Abstract:城市园林不仅是城市文明建设的窗口 ,也是居民休息养生的活动场所 ,一旦遭白蚁危害 ,既造成损失 ,又影响观赏 ,而且还对园林周边地区的建筑物构成潜在的威胁[1 ] ,唐觉等对杭州园林白蚁有较详细的报道[2 ,3] 。武汉地区气候温暖潮湿 ,是白蚁危害严重的地区之一 ,城市园林的生态条件 ,更易成为白蚁繁衍危害的场所。根据调查 ,估计武汉地区城市园林遭白蚁危害直接经济损失在千万元以上 ,而且不包括白蚁对名木古树、古建筑危害无法估量的间接损失。笔者于 1 996~ 2 0 0 1年间 ,系统调查了武汉市园林白蚁的种类和危害情况 ,现将结果报道如下。1…
Chen Xiuhua Li Chuanhan He shaojiang
2001, 20(6).
Abstract:Soil in pots, in which Chinese fir seedlings was planted ,were treated with 6 concentrations (0,50,100,200,400 and 600 mg/kg) of each of four standard phenolic acids (gentisinic,vanillic,syringic and coumaric acid) .The height of stem, the fresh and dry
2001, 20(6).
Abstract:井冈霉素与日本报道的有效霉素 (vali damycins)相似 ,属氨基环醇类抗生素 ,是一种抗水稻纹枯病菌 (Pelliculariasasakii)的农用抗生素 ,具有药效高、无毒副作用、持效时间长的特点 ,是一种重要的农用抗生素。从 2 0世纪 70年代问世以来 ,2 0多年经久不衰 ,已成为家喻户晓的理想生物农药 ,对我国水稻高产、稳产起了重要的作用。随着人们对环境保护的日益重视 ,微生物农药显示了广阔的应用前景。目前 ,在水稻的主要病害 (水稻纹枯病 )防治中 ,几乎 90 %以上是采用井冈霉素[1~ 4] 。为提高效价 ,进一步降低成…
Fan Shengxian Yuan Zonghui Kong Ke Wang Daju
2001, 20(6).
Abstract:以表皮葡萄球菌 2 6 0 6 9型 (Staphylococcusepidermidis,ATCC12 2 2 8)为测试菌 ,用微生物学杯碟法定量测定庆大霉素在猪肉和鸡肉组织中的残留。庆大霉素在磷酸盐缓冲液、鸡和猪的肌肉组织中的最低检测限分别为 0 .0 2 5 μg/ml、0 .0 5 μg/g和 0 .0 5 μg/ g ,在磷酸盐缓冲液中标准曲线的线性范围为 2 .5× 10-2 ~ 0 .8μg/ml。庆大霉素浓度为 0 .0 5、0 .10、0 .2 0 μg/g时 ,鸡肉组织中的回收率分别为 (85 .8± 4 .5 ) %、(90 .1± 5 .9) %和 (88.8± 5 .3) % ,猪肉组织中的回收率分别为 (83.5± 7.1) %、(85 .2± 5 .4 ) %和 (86 .9± 6 .7) % ,日内和日间变异系数均小于 10 %。结果表明 ,本法快速、灵敏、简便 ,适用于庆大霉素在猪和鸡肌肉中残留的定量检测
2001, 20(6).
Abstract:6头健康长大杂交猪 ,体重 (2 5 .5± 1.4 )kg ,用于研究 7~ 11周龄猪免疫学特征。于 7、8、9、10、11周龄时 ,自前腔静脉采血 ,用显微镜法计数红、白细胞总数 ,经姬姆萨染色后作白细胞分类计数 ,用硝基蓝四氮唑(NBT)还原试验定量检测嗜中性白细胞吞噬功能 ,噻唑蓝 (MTT)比色法检测外周血中淋巴细胞转化 ,单向免疫扩散法测定血清IgG浓度 ,5 0 %溶血试验测定血清中补体总活性 ,同时 ,用植物血凝素 (PHA)皮肤试验检测迟发型超敏 (DTH)反应。结果明示 ,7~ 11周龄猪免疫反应差异不显著 (P >0 .0 5 ) ,即猪免疫系统已发育完全 ,适于用作免疫学研究的动物模型
Li Dapeng ) , ) Zhuang Ping ) Wang Mingxue ) Zhang Zheng ) Zhang Longzhen ) Zhang Tao )
2001, 20(6).
Abstract:采用不同光源、不同照度和光周期 ,观察了史氏鲟稚鱼的趋光性及其生长受光照周期的影响 ,结果表明 :(1)史氏鲟稚鱼在照度 10 0lx~ 110 0lx之间的趋光率为 4 9.5 5 % ,无显著的趋光性 ;当亮区照度在 130 0 0lx以上 ,稚鱼 10 0 %避光。 (2 )稚鱼在全黑 (0lx)、全光照 (72 0lx)和自然光周期 (0~ 5 80lx)的试验条件下饲养 35d后 ,其生长未表现出显著性差异 ,各试验组的总摄食量也未有显著性差异。处于全黑条件下的稚鱼的体色普遍变浅 ,呈灰白色 ;而另两种光周期条件下的稚鱼体色深黑 ,全光照条件下的稚鱼体色与自然光周期下的一样。结果还显示 ,史氏鲟稚鱼的生长表现出不等速性 ,全黑和自然光周期试验组的全长生长快于体重的生长 (b <3) ,而全光照组的全长生长慢于体重生长 (b >3)。
Chen Chaoran ) Meng Changming ) Chen Changfu )
2001, 20(6).
Abstract:Fish zygotes were immersed in the solution of stable chlorine dioxide (ClO 2 ) to eradicate the adherent bacteria. The zygotes of grass carp( Ctenopharyngodon idellus ),silver carp( Hypophthalmichthys molitrix ) and bighead( Aristichthys nobilis
Shen Kangrong Li Jiajun Wang Xiaochun Wu Ling Liu Jun Cao Jun
2001, 20(6).
Abstract:Choosing 4 lotus root varieties, tectorial planting in a field of lotus root was experimented at different spots in two years. The results showed that the biology and economic characters of lotus root by tectorial planting in a field were better than whic
2001, 20(6).
Abstract:微波杀青是形成和提高绿茶品质的关键性技术措施。迄今为止的杀青技术 ,常因火候把握不准而使绿茶产生红梗红叶、黄闷、杀青不均匀等弊病[1 ] 。微波加热技术具有升温迅速而均匀 ,操作简便 ,易控[2 ] 等优点开始初步应用在茶叶领域 ,如茶叶干燥、复火、红茶贮藏及茶叶水分测定等方面[3] ,尤其是在杀青工序上 ,由于微波热量是由里及表 ,容易杀匀杀透[1~ 3] ,且因杀青时间短、叶绿素的破坏大大降低 ,有效地提高了杀青质量。李立祥等报道利用微波杀青来固样 ,无论是在外形色泽、叶底色泽、汤色 ,还是内含成分 ,均明显优于传统炒青、蒸青[3] ;…
Wang Qiaohua ) Yu Yousheng ) Zong Wangyuan ) Chen Xiaowei ) Liu Jianying ) Wen Youxian )
2001, 20(6).
Abstract:应用机器视觉 ,研究出鸭蛋大小自动分级模型。鸭蛋的面积尺寸是鸭蛋大小分级的重要依据 ,鸭蛋的重量与所成像的像素面积成正比。鸭蛋大小等级模型具有显著性和可靠性 ,鸭蛋大小的检测误差在± 3g之间 ,能够满足生产的需要
Zhou Guoling Yang Guangsheng Fu Tingdong
2001, 20(6).
Abstract:The rationale, application and application potential and some factors of limitation of some important gene cloning techniques were studied in this paper. The gene cloning technigues include map based cloning or positional cloning,transposon or T DNA ta
2001, 20(6).
Abstract:从植物体内的纳米结构SiO2和化学合成的纳米结构SiO2在叶表的沉积之后赋予植物叶片独特的物理学特性入手,详细讨论了纳米结构SiO2抑止真菌孢子和寄主表面的高度专一性的超分子识别过程的第一步反应,从而提出纳米结构SiO2可能改变植物叶表面原有的扑结构和疏水等物理学特性,即形成特殊的双亲性表面,影响真菌胞外物质的释放和芽管、附着胞及侵染钉的形成,阻断真菌孢子早期的侵染过程,从而确定靶向的真菌病害的控制措施。
Yang Zeming Xiong Yuanzhu Yu Chuanzhou
2001, 20(6).
Abstract:The affecting factor and trend of pig genetic evaluation was reviewed.The main factors which influence pig genetic evaluation include genetic evaluation's methods and caculating techniques and enviromental effects, selection,non additive effects, non no
Ma Chongjian Liu Jun Xie Conghua
2001, 20(6).
Abstract:Jasmonic acid (JA) and its derivatives are widespread in the plant kingdom,exerting various physiological activities. Generally, they are capable of inducing the formation of the substances involved in stress responses, senescence promotion and growth inh
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