Tang Guowen ) Gong Xinwen ) Meng Guoling )
2002, 21(1).
Abstract:From 1997 to 1998, the authors investigated the vegetable thrips in Wuhan region. It was found that among 33 kinds of common vegetable, 27 kinds are attacked by thrips. The species of thrips were identifred. This paper dealed with twenty four species of
Lin Jintian ) Bin Shuying ) Zeng Ling ) Liang Guangwen )
2002, 21(1).
Abstract:Vegetable leafminer ( Liriomyza sativae Blanchard ) larvae in 3rd instar were applied with Cyhalothrin in successive generation in the laboratory to develop a resistant strain ( Cy-R). After 50 generations, the resistance index of this pest to Cyhaloth
2002, 21(1).
Abstract:This paper studied the spatial pattern of the cotton bollworm( Helicoverpa armigera ) eggs at low density with geostatistics. Models were established at the directions of north south and west east. Most of them were pure nugget variograms. The range o
2002, 21(1).
Abstract:研究了双带夜蛾Naranga aenescens Moored在实验室条件和稻田自然变温条件下的发育起点和温度和有效积温。在18-34℃范围内设置6个温度处理对卵,幼虫和蛹的发育历期进行了测定,结果表明卵,幼虫和蛹在18-32℃之间的发育历期和温度均呈直线关系。用直线回归法测得卵,幼虫,蛹和产卵前期的发育起点温度分别为10.50,9.23,12.02,12.26℃,有效积温分别为60.07,348.54,91.92,29.29日度。全世代的发育起点温度为10.07℃,有效积温为558.36日度。
Zhou Yong ) Wu Kai ) Liu Hong ) Lei Xinmei ) Wang Dehua ) Shan Shijie )
2002, 21(1).
Abstract:The basic soil taxonomy in Jianghan Plain sample area was studied according to the principles of Chinese Soil Taxonomy, on the basis of the diagnostic horizon and diagnostic characteristics of Chinese Soil Taxonomy (theory, method and application) and
Chen Jiazhou Cai Chongfa Qiu Huachang
2002, 21(1).
Abstract:对湖北省几种主要旱地土壤用室内加氮培养与植物物料混合于砂滤管田间培养进行试验研究,结果表明,湖北省耕地土壤固定态铵含量为31.9-185.3mg/kg,占土壤全氮5.8%-23.7%。外源铵浓度为含N400mg/L,土壤对铵的固定率为33.0%-50.7%;土壤近似最大固定态铵含量与土壤原固定态铵含量大小顺序一致。植物特料分解过程中土壤固定态铵含量的变化比交换性铵含量的变化更大,在计算植物物料氮素矿化速率时应当把固定态铵含量的变化考虑进去。
2002, 21(1).
Abstract:Experiment of sewage sludge on the pot cultivation was conducted and results showed that sewage sludge had high organic matters,nitrogen and phosphorous nutritions; the application of sewage sludge can improve the soil fertility and increase the urease
Sun Xuecheng Hu Chengxiao Tan Qiling Wei Wenxue Wang Yunhua
2002, 21(1).
Abstract:Effects of molybdenum application on contents of free amino acid, soluble sugar and protein of winter wheat at different growth stages were studied under pot culture experiments with the soils collected from Xinzhou, Wuhan, China. The results showed th
Wang Chengzhang ) Qi Shengli ) Shi Yinghua ) Yang Yuxin ) Guo Jinling )
2002, 21(1).
Abstract:在中等肥力土壤条件和每公顷播种量7.5kg的情况下,分析从美国引进的4个不同苜蓿品种和我国的中苜1号在产草量,营养成分,氨基酸含量以及经济效益上的差异性。结果表明:引进的4个苜蓿品种产草量和经济效益均高于国内品种55%-80%,其中以MHA2品种的产草量,经济效益最好,具有推广意义。
Huang Lingli Yuan Zonghui Fan Shengxian Wang Yulian Wang Guoyong
2002, 21(1).
Abstract:报道了药饲喹赛多对鸡人工感染大肠杆菌 (C84 0 10 )病的预防效果。接种前 5d开始用药 ,接种后连续用药 14d ,给药剂量如下 :喹乙醇组药物 2 5× 10 -6,喹赛多试验组药物 (× 10 -6)分别为 12 .5、2 5、5 0、10 0、2 0 0。结果表明 ,阴性对照组发病率达 80 % ,喹乙醇对照组发病率为 2 0 % ,而喹赛多 5 0× 10 -6、10 0× 10 -6、2 0 0× 10 -6组均将发病率控制在 10 %以内 ,明显优于喹乙醇组。且此 3组预防效果显著高于 12 .5× 10 -6、2 5× 10 -6组 ,增重效果极显著高于 12 .5× 10 -6、2 5× 10 -6组 (P <0 .0 1) ,而此 3组间差异不显著 (P >0 .0 5 )。由此可见 ,5 0× 10 -6以上的喹赛多不仅对人工诱发大肠杆菌病有明显预防效果 ,还可促进生长 ,提高饲料利用率。综合考虑 ,推荐 5 0× 10 -6为较理想的临床用药剂量
Zheng Yuanlin ) , ) Ai Xiaojie ) Liu Gentao ) Han Zhengkang ) Chen Jie )
2002, 21(1).
Abstract:利用大鼠离体肝脏灌流技术以及大鼠原代培养的肝细胞研究了大豆黄酮对SD大鼠肝脏氮代谢和IGF -I生成的影响。结果表明大豆黄酮可使大鼠离体肝脏灌流液中尿素氮浓度下降 ,并有一定的剂量效应和时间效应。在给药后灌流的第 1、2、3、4h ,1× 10 -4mol/L剂量的大豆黄酮试验组 (n =8)大鼠离体肝脏灌流液中尿素氮水平分别为 (0 .76± 0 .19)、(1.16± 0 .0 7)、(1.2 8± 0 .13)、(1.5 9± 0 .19) μg/ml(以含每毫克DNA的肝组织所生成的尿素氮浓度表示 ) ;与对照组相比 ,其尿素氮浓度下降的幅度分别为 13.6 4 % (P <0 .0 5 ) ,2 3.18%(P <0 .0 5 ) ,34.0 2 % (P <0 .0 1)和 32 .91% (P <0 .0 1)。 4× 10 -5mol/L的大豆黄酮对大鼠肝脏尿素氮生成影响具有类似的效应。大豆黄酮还可在一定程度上抑制大鼠离体灌流的肝组织中GPT的活性 (n =8) ,能够促进大鼠肝细胞蛋白质的合成 ,1× 10 -5mol/L的大豆黄酮可使3 H -亮氨酸的参入量与对照组相比提高了 2 1.38%(n =6 ,P <0 .0 5 )。大豆黄酮对离体灌流的大鼠肝脏IGF -I生成和分泌也具有一定程度的促进作用 (n =8)。提示大豆黄酮可通过增加对大鼠肝脏氮的储留、促进大鼠肝细胞蛋白质的合成以及在一定程度上影响肝脏IGF-I生成和GPT的活性 ,而调节肝脏的氮代谢
Jian Qing Bai Junjie Li Yinghua Ye Xing Luo Jianren Lao Haihua
2002, 21(1).
Abstract:采用高效表达鲤鱼生长激素的大肠杆菌基因工程菌株E .coli(pBVcGH8)进行发酵培养 ,经温度诱导可产生一分子量约为 3.6 3× 10 -2 0 g的特异表达产物 ,该表达产物主要以包涵体的形式存在 ,表达量占菌体总蛋白的 2 9.2 %。表达产物经包涵体收集、洗涤等初步纯化后 ,纯度可达 85 .0 %。再经变性与复性后 ,用阴离子交换层析进一步分离纯化 ,最终可获得纯度为 96 .0 %的重组鲤鱼生长激素。用该纯化过的重组鲤鱼生长激素注射罗非鱼 ,有明显的促生长作用
Huang Bianfei , ) Chen Chaoran ) Mao Zhijuan ) Chen Changfu )
2002, 21(1).
Abstract:The offsprings of silver crucian carp ( Caressius auratus gibelio ) were immunized with crude lipopolysaccharide(LPS) extracted from Vibrio harveyi , V. parahaemolyticus and V. anguillarum . The immune response of offsprings of silver crucian
Shen Jianzhong ) , ) Cao Wenxuan ) Cui Yibo )
2002, 21(1).
Abstract:Carassius auratus from Honghu Lake and Dongting Lake were sampled monthly or bimonthly and otoliths were used for age determination. Based on marginal increment analysis, it was demonstrated that the annulus in otoliths was formed once in a year, and t
2002, 21(1).
Abstract:鱼类对水层和饵料的选择性与其对不同光强、光色的特定光习性有着密切的关系。鳜 (Sinipercachautsi)是我国淡水名贵鱼类 ,已成为重要的养殖对象。但其终身以活鱼虾为食的习性 ,不仅给人工配合饲料的研制设置了障碍 ,而且制约了鳜的苗种繁育和养殖规模。为此 ,在对鳜的视觉结构和趋光特性研究的基础上[1~ 4] ,笔者采用行为学方法进一步对鳜在不同发育阶段对光的反应水平和辨色能力进行研究 ,旨在探讨鳜对不同光色的反应机制 ,为鳜的苗种培育和配合饲料研制提供科学依据。1 材料与方法1 .1 供试鱼鳜的苗种由水产学院人工…
Zeng Ceng ) Liu Xibin ) Wu Junyan ) Li Qi ) Xie Congxin ) Yang Chun )
2002, 21(1).
Abstract:With casting technique and histological methods, the thesis researched the anatomical structure of the urinate organ of Rice field eel, Monopterus albus was studied. The results showed that the two mesonephric canals connected with the "degenerate go
2002, 21(1).
Abstract:实验室条件下研究了离体小鞘指环虫的产卵特点。运用方差与均数之比和聚集度2个指标,并结合Lorenz曲线分析了个体产卵量的差异,结果发现成熟个体产卵数量的离散程度不高。温度对产卵量有重要的影响,小鞘指环虫在14℃产卵最多,估计该虫在寄生状态下平均每虫每小时可产0.3枚卵。
Qi Rong Zhang Jialai Zeng Xiangfu Xiong Yanping Wang Shaoyuan Liu Yan
2002, 21(1).
Abstract:The paper provided scientific basis for the designing of constructing fire protection forest belts by the research for the construction of the fire protection forest belts at Jiufeng, Wuhan and Qianshan, Xianning. The result showed that it was an easy a
Xiong Shanbai Zhao Siming Li Jianlin Tan Rucheng
2002, 21(1).
Abstract:The physicochemical properties, sensory qualities of cooked rice and the relationships between them were studied with correlation analysis. The mathematical models of sensory qualities of cooked rice were set up and the expression parameters of sensory qu
Yuan Qiaoxia ) Liu Qingsheng )
2002, 21(1).
Abstract:The study on improving the effect of gingko nut shelled by drying and freezing before shelling was conducted in this paper.It showed that both drying and freezing gingko nut before shelling were found to be effective in improving the effect of gingko nut
Ma Jingzhong Li Jianhong You Hong He Jin Jiang Hong
2002, 21(1).
Abstract:Five new di N oxoquinoxaline formaldehyde derivatives have been synthesized and characterized by HNMR and elemental analysis. The effect of bacteriostasis of the compounds to five kinds of plant germs has been studied. The relation of the structure to t
Yang Yuhua Wang Yunhua Wu Lishu Du Changwen
2002, 21(1).
Abstract:The physiological and biochemical, genetical and molecular biological mechanisms of B efficiency differences among different plants and species, especially between Brassica napus species were reviewed. The main causes of B efficiency difference in p
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