苦楝优良家系初步选择

对江苏、山东、河南、福建4省采集的20个苦楝(Melia azedarach)家系1年生实生苗苗高、地径、根幅、主根长、最长侧根长、根数、叶片数、根鲜重、茎鲜重和叶鲜重等10个性状进行测定和分析。结果表明:除最长侧根长外,各供试苦楝家系的其余9个性状均存在极显著差异;供试苦楝家系隶属度综合分析排序结果为:江宁0802>射阳0801>溧水0803>阜宁0802>武夷山0804>东台0801>东台0803>射阳0804>铜山0702>招远0804>五莲0801>赣榆0802>大丰0701>平度0805>滨海0801>诸城0802>灌云0703>五莲0803>焦作0801>洪泽0704。     

浅析大花萱草的栽培研究及病虫害防治

依据大花萱草的生物学特征,介绍了大花萱草的繁殖方法、栽培研究意义;同时也论述了几种病虫害的防治方法及园林用途和其社会效益。     

白桦优树自由授粉子代测定及优良家系选择

对辽宁省清源和黑龙江省塔河两个种源地5年生白桦子代测定林40个家系的树高、胸径、材积性状进行子代测定及优良家系选择的结果表明：两个种源地不同家系间树高、胸径、材积性状差异极显著,其中清源种源的Q3号为最优家系,其树高大于群体平均值7.467%,胸径大于群体平均值10.87%,材积大于群体平均值21.317%;塔河种源的T19为最优家系,其树高、胸径和材积较平均值增加27.88%、51.89%和85.18%。     

中国土壤系统分类基层单元土族建设现状与命名上存在的问题

土族与土系是土壤系统分类的基层单元,也是未来相当长时间内我国土壤系统分类工作的重点。依据国家科技基础性工作专项"我国土系调查与《中国土系志》编制(2008FY110600)"在2013年制订刊出的"中国土壤系统分类土族和土系划分标准",重点分析了1998年以来我国土壤系统分类基层单元研究工作建立的土族在命名格式上所存在的问题,旨在为今后我国的土族建设工作提供参考。     

汉中中药现代化发展前景的评价分析

汉中地处陕西省境内的秦巴山区，素有“天然药库”之称,从古至今一直是中国中药材的主要产地。在中国中药材资源普查中,汉中药用植物达1300多种,国家规定的364种重点中药材汉中有280种,具有显著的资源优势。中药现代化为汉中中药提供了难得的发展机遇。     

The efficiency of between and within full-sib family selection in a recurrent selection programme in sugar beet (Beta vulgaris L.)

The efficiency of between and within family selection in a full-sib family recurrent selection programme was investigated using data from three cycles of recurrent selection. Correlations between mid-parent values and offspring were high for sugar content and juice purity characters, but low for root weight and sugar yield. This suggests that single root selection within full-sib families is effective in the improvement of sugar content and juice purity, but ineffective for root weight and sugar yield. Root weight and sugar yield will respond better to between full-sib family selection. This revised version was published online in July 2006 with corrections to the Cover Date.     

Product Market Competition and the Evolution of Family Business

This paper tries to analyze the mechanism of the evolution of family business based on the product market by constructing the simple model. The analysis indicates that the evolution of family business is the tactic conduct of owner obtaining the competitive dominance and that the entrance rampart of industry is an important parameter affecting organization evolution. The organization evolution in different industry is different because of the difference of the entrance rampart of industry. On the basis of the analysis, the authors consider the organization evolution based on industry support and then make basic conclusions.     

Research into the Site Plan of Baiyun Tourist Development Area, Chongqing

By introducing and analyzing the overall plan of Chongqing Baiyun Lake tourist development area and several main highlight landscapes, this paper points out that the creation of architectural environment should reflect the traditional culture. It is the basis for creation with architectural characters. It also coincides with the building philosophy-"tian ren he yi"(integration of nature with human beings), proposed by Chinese traditional architecture.     

中药对黄曲霉毒素B1中毒雏鸭血清抗氧化功能的影响

为观察黄曲霉毒素B1(aflatoxin B1,AFTB1)对试验雏鸭血清抗氧化功能的影响及复方中药对AFTB1的颉颃效应.本试验以雏鸭为试验动物,7日龄雏鸭90只,共分为3组,每组各30只.第Ⅰ组设为空白对照组,灌胃同等量二甲基亚砜;第Ⅱ、Ⅲ组为试验组.每天分别按0.1 mg/kg剂量给第Ⅱ、Ⅲ组雏鸭灌胃AFTB1一次,连续投药21 d,试验期间给第Ⅲ组雏鸭日粮中添加2％复方中药.分别在给雏鸭投药后7、14、21 d,检测雏鸭血清总抗氧化能力(T-AOC)、超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、谷胱甘肽过氧化物酶(GSH-Px)、谷胱甘肽还原酶(GR)及丙二醛(MDA)等抗氧化指标.试验结果显示,第Ⅱ、Ⅲ组雏鸭血清SOD、CAT、GSH-Px及GR活性与T-AOC均显著低于第Ⅰ组(P＜0.05),而MDA显著高于第Ⅰ组(P＜0.05);与第Ⅱ组相比,在日粮中添加复方中药的第Ⅲ组雏鸭血清抗氧化指标均得到明显的改善(P＜0.05).结果表明,黄曲霉毒素B1导致雏鸭血清抗氧化功能发生显著的变化,而复方中药能明显改善其变化.     

中兽药复方“连藤”的抗炎作用及安全性评价

试验选择中草药连翘、青风藤等配伍组成复方制剂“连藤”,采用水煎醇提法提取该复方制刑有效成分,通过急性毒性试验、最大耐受量试验、异常毒性试验对复方“连藤”的安全性进行评价,经二甲苯致小鼠耳廓肿胀试验检测复方“连藤”的抗炎作用。结果表明,复方“连藤”为实际无毒,其最大耐受量为18g／（kg·bw）;在体内抗炎试验中,复方“连藤”的高[10．0g／（kg·bw）]、中[5．0g／（kg·bw）]剂量组的肿胀抑制作用明显高于阳性对照（地塞米松）组。复方“连藤”安全、无毒且有良好的抗炎作用,具有开发潜力。