呼市PM10污染特征分析及预警模型的建立

分析了呼和浩特市可吸入颗粒物PM10污染特征,以及PM10变化规律与气象要素的关系。采用CART方法对造成呼和浩特市中度以上污染的气象条件进行分析,建立了预警模型,确定了呼和浩特市重污染预警指标。     

民事行为无效规则在票据法中的适用

票据行为属于民法上的民事法律行为范畴,但同时又是一种特殊的民事法律行为。其除适用民法的一般规则外,还适用票据法的特定规则。票据行为的无因性、文义性、独立性、要式性等特征,决定了在处理票据纠纷尤其是确定票据行为的效力时,不能简单套用《民法通则》中关于民事行为无效的规定,而应结合票据行为的特征来认定。     

Market Disease Pathogens Detection of Imported Fruits in Shanghai

A tremendous amount of imported fresh fruits has been delivered to Shanghai markets, increasing the risk of invasion by harmful plant pathogens. Therefore, it is important to establish an effective detection and supervision system to survey the outbreak of the market diseases of the imported fruits during marketing. The samples were regularly surveyed in different markets to examine varieties, prices, localities, selling conditions, and diseases of the imported fruits from 2004 to 2008. The survey showed that 58 species of 30 different fruits were imported to Shanghai from 16 countries with more expensive price. The larger products were bananas, grapes, apples, and oranges. During the investigation, we found that the imported fruits frequently brought about the relatively serious market diseases. On the basis of morphology and the nuclear internal transcribed spacer （ITS） of ribosomal DNA （rDNA） analysis, 151 isolates of 15 fungi genera, which shown to be pathogenic after the inoculation assay, were finally identified. Among the identified fungi, Alternaria was the most frequent one with the highest detection rate （47.68%）, followed by Penicillium （14.57%） and Fusarium （11.92%）, respectively. Additionally, Pestalotiopsis microspora （detected in grapes Red-Globe coming from the USA） and Botrytis sp. （detected in black-plums coming from the USA） were first reported in China market. The present study summarized the selling situation of the imported fruits in Shanghai markets and constructed a library of the pathogens detected in the imported fruits during the selling period. The results obtained are useful to offer technical parameters for Chinese quarantine in order to prevent an invasion of the foreign harmful micro-organisms.     

重新认识土壤与造土 使农业永续发展

1 认识土壤 日本生物学家岛本邦彦博士在微生物农业应用法中写到“根系培育不好,作物繁茂不了。只有造好土,育好根才是栽培好作物的根本之道”。农业生产以土为本,一切活动均应围绕着促进土地的土壤化作用,充分发挥土壤的机能,利用现代生命科学成果,充分发挥土地自然潜力。农作物是靠太阳能、水、空气和土壤而生存的。土壤是有生命的,其中生活着约有近万种与生态系统相关的土壤微生物孕育着土壤的生命,提高着土壤的功能。     

腾蛟起凤、处变革新——也谈E-Learning环境下高校图书馆的服务创新

论述了E-learning环境下高校图书馆服务面临的机遇和挑战,以图书馆的构成要素为基础,构建服务创新五要素模型,并探讨了的服务创新的具体内容。     

Studies on genetic relationships among Oakleaf loquat,Daduhe loquat and common loquat by RAPD and ISSR

The genetic relationships among oakleaf loquat （Eriobotrya prinoides）, Daduhe loquat （Eriobotrya prinoides var. dadunensis） and common loquat （Eriobotrya japonica） were studied by RAPD and ISSR markers. The results showed that the similarity coefficient between oakleaf loquat and common loquat was minimal （0.6996 and 0.7219, respectively） and the similarity coefficient between oakleaf loquat and Daduhe loquat was maximal （0.8403 and 0.8211, respectively）, while the similarity coefficient between Daduhe loquat and common loquat was always intermediate （0.7195 and 0.7219, respectively）. The highest additivity was obtained when Daduhe loquat was regarded as the undetermined hybrid （44.9% and 45.8%, respectively）. The specific bands of oakleaf loquat and common loquat were present in Daduhe loquat. Thus, it could be concluded that Daduhe loquat was a hybrid of oakleaf loquat and common loquat.     

转Bt基因抗虫棉新品种金杂棉3号抗枯萎病效果研究

转Bt基因抗虫棉新品种金杂棉3号对枯萎病抗性的研究结果表明,转Bt基因抗虫棉金杂棉3号是一个对棉花枯萎病抗性优良的新品种,其蕾期病指为0～3.91,表现为抗至高抗;后期劈杆调查病指为1.44～1.57,表现为高抗;苗期病指为16.00～54.83,表现为感。在生产中需进行种子处理和土壤处理等预防措施。     

西藏砂生槐丛生芽的诱导

以西藏砂生槐无菌实生苗为材料,研究了不同外植体、基本培养基、细胞分裂素种类及浓度、pH对其丛生芽诱导的影响。结果表明:以子叶节为外植体,接种于pH 6.0~6.5的MS+6-BA 2.0 mg/L+NAA0.2 mg/L培养基上,丛生芽的诱导效果最好。     

绿色的视觉交通廊道——宣广高速宣城东出入口地段景观设计

通过对宣广高速宣城东出入口地段景观设计方案的阐述,传达了从规划到建成使用全过程对个人驾乘体验的设计思想。在考虑道路建设及养护的经济性的同时,使司机、乘客及沿线居民有心理上的舒适、行车的安全感,并考虑保护动植物的生态平衡。