1988(1).
Abstract:The sensitivity of several varieties of cauliflower to infection with Agrobac-terium tumefaciens strain T37 was measured at high frequencies, of tumourgenesis raging from 54to 82 per cents on in vivo infected sites after 8 weeks of inoculation. Hypocotyl
Li You Fang , Yu YuJun ,
1988(1).
Abstract:将小麦穗部赤霉病扩展至穗轴的速度作为赤霉病抗扩展性的主要指标,以穗轴发病为界,将麦穗赤霉病扩展过程分为两个主要阶段,计算前期日扩展率和后期日扩展率。前后两期日扩展率无相关,任何一个过程的抗性减弱都使病级加重。不同品种的病害扩展进程存在差异而可分别利用。各发病阶段的抗性也都表现出数量性状的遗传特点,符合加性一一显性模型。
Wang Changlin , Chen Jingbio ,
1988(1).
Abstract:对22个野生型紫云英根瘤菌菌株的质粒和抗性基因的研究结果表明,不同紫云英根瘤菌菌株都含有1-4个数量不等的质粒,其分子量变幅在18.5-300Kb之间。大部分野生型分离菌具有不同程度的抗庆大霉素,卡那霉素,四环素和链霉素的能力;其中抗庆大素和抗卡那霉素的能力超出一般快生型根瘤菌的许多倍。对菌株HR104的热处理消除试验结果表明,抗庆大霉素的因子与其中的一个巨型质粒(p104c)相关。用消除质粒p104c的突变株回接寄主植物仍能够形成有效根瘤,说明该质粒的存在与共生固氮过程无关。
Zhong Changzhen , Zhong liangbing , Yu Xunling , Lei Zhaoliang , Sun Zizhong , Wu Zhengbin ,
1988(1).
Abstract:The resistant characters of 54 cotton vavieties to Pectinophora gossypiellawas investigated. The result showed that, although it is almost impossible to select a resistantvariety whict canbe applied in commercial production alirectly, most varieties have
1988(1).
Abstract:The Eucommia grey noetuid(EGN), polio sp. has significantly affected Productionof Eucommia, one kind of Chinese herbal medicines. It was first found in central ChinaTwo or three generations our every year in the mountain areas of Hubei Province. Thepupae
Wei Yangdou , Zhou Shengde , Zhou Maofan ,
1988(1).
Abstract:The resistance of 7 sweet potato varieties to root rot fungus (Fusariumsolani f. sp. batatas) was determined in the field and on tuber slices. The colorimetryand the TLC-scanning spectrophotometry were used for quantitatively assaying theaccumulation of f
Deng Peng , Zheng Lirong , Hu Jienfang , Huang Hanwen , Kuang Xingquan ,
1988(1).
Abstract:1985-1987年,在武昌室内恒温26℃±0.5、相对湿度70%±5、日光照18小时的条件下,观察了亚洲玉米螟Ostrinia furnaealis(Gueaee)卵粒的外表颜色及内部胚胎发育的变化。将胚胎发育期划分为四级,即:1.卵裂,胚盘及胚带形成,胚体开始分节期;2.附肢形成,胚体缩短期;3.背合,胚动期;4.继续背合,静止期。卵的整个历期为107±3小时。
Cheng Guofu , Huang Jinzhou , Qin Lirang ,
1988(1).
Abstract:28 mice were inoculated intragastriclly with Treponema hyodysenteriac(T.h. ). The histopathological observation of the affected intestines manifested anexudative inflammation with submucosa edema, hyperemia, slight proliferation of gobletcells, dilation o
Lo Manling , Wan Yu zhi ,
1988(1).
Abstract:以猪痢疾密螺旋体超声裂解冻融物作抗原进行酶联免疫吸附试验,测定了感染猪血清中的抗猪痢疾密螺旋体抗体。酶联免疫吸附试验最适条件为:抗原10微克蛋白/毫升,血清稀释度100倍左右,酶标结合物1000倍左右。对103份感染猪血清用酶联免疫吸附试验和平板凝集试验对比测定表明,两法呈高度正相关,而且前法多检出8.74%的阳性样品。酶联免疫吸附试验比平板凝集试验更敏感,有可能成为猪痢疾诊断的一种快速方法。
Chen Bingyao , Qin Lirang , Lei Jianbao ,
1988(1).
Abstract:The detoxication effect of Radix Paeoniae Alba, given orally in powdered andethanol extract forms. to experimental chronic aflatoxicostic ducklings were examined. Fromhistopathological findings, there was an inhibitory effect in the development of hepatoc
Chen Bingyao , Qin Lirang , Lei Jianbao ,
1988(1).
Abstract:一日龄北京雏鸭一次口服AFB_1 12和15微克/只,采用四种白芍制剂分别灌服进行防治。根据雏鸭死亡率,肝脏组织学病变等观察结果,表明白芍醇提物对雏鸭AFB_1急性中毒有明显缓解作用,白芍保健饮料“健康乐”的底料和药液缓解作用较差。
Li Keping , Fang zhiping , Ye changfa ,
1988(1).
Abstract:The 5-hydroxytryptamine (5-HT) immunoreactive cells (EC cells) ofdigestive tract of buffalo were studied with PAP method. The EC cells were most numerousin the duodenum (251/mm~2) followed by rectum (217/mm~2). The cell density decreasedgradually from duo
1988(1).
Abstract:Somatostatin immunorective cells (SIC) distributed throughout thegastrointestinal tract. Most of them presented in gastric glands and intestinal glandsof duodehum. Small amount of SIC located in gastric and duodenal epithelia as well asduodenal (Brunner's
Han Manhua , Li Minpei , Qin Chunpu , Shi Gaoming ,
1988(1).
Abstract:对湖北白猪Ⅲ系公猪的繁殖特性进行较系统的研究表明:小公猪初次出现性爬跨并伸出阴茎的日龄为98天,体重37公斤;第一次采得精液的日龄为130天、体重49公斤。最早能使母猪怀孕的日龄为150~155天、体重62~65公斤。从90日龄开始,睾丸和副睾指数迅速增加,180日龄时达高峰。120日龄时睾丸曲细精管中出现较多的精子,副睾管中有少量的精子。血液中睾酮含量从75日龄至165日龄上升很快,在165日龄时达856ng/100ml。240日龄的精液质量接近成年公猪的水平,从而认为湖Ⅲ公猪在120日龄进入初情期;150日龄进入性成熟期;初配期可在240~270日龄。
1988(1).
Abstract:By the use of the immunohistochemical method, endocrine cells immunoreactivefor glucagon were identified in different parts of gastroenteropancreatic (GEP) system ofwaterbuffalo. The goucagon-immunoreactive cells were the most numerous in large intestinea
Lu Yuzhu ,
1988(1).
Abstract:本文报道了XJ-L-15/4.5×2微型水轮机的设计,以及样机的性能实验。结果表明,在水头为10-30m,流量为0.03-0.06m~3/s条件下,样机的功率可达0.9-13.2kw,可供山区农民照明和农产品加工之需。
1988(1).
Abstract:Nine IR spectrum libraries have been established on 1300 FT-IR spectropho-tometer, and their structure and the operation proceedure of searching unknown sampleare described, The computation in searching is given, the searching results are describedn this
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