影响‘小凤兰’根状茎增殖、分化和壮苗的因素研究     

杨靖  谢利  曾瑞珍  商瑞昕  郭和蓉  张志胜 《北方园艺》2016,(2):105-109

以‘小凤兰’根状茎为试材,研究了影响‘小凤兰’根状茎增殖、分化、生根壮苗的因素。结果表明:MS基本培养基、蔗糖30g/L、6-BA 2.0mg/L+NAA 0.5mg/L、活性炭0.5g/L有利于根状茎增殖,而添加20%椰汁和番茄汁40g/L会抑制根状茎增殖。1/2MS基本培养基、蔗糖30g/L、6-BA 2.0mg/L+NAA 0.2mg/L、20%椰汁、1 000lx光照强度有利于根状茎分化,不加活性炭有利于芽分化,但抑制根分化,而添加活性炭则抑制芽分化,促进苗分化。添加土豆泥60g/L显著促进试管苗生长,3~4cm高的苗在培养基1/2MS+6-BA 0.1mg/L+NAA0.5mg/L+蔗糖20g/L+土豆泥60g/L+卡拉粉8g/L+活性炭0.5g/L中培养40d即可移栽。  相似文献   

三种地被菊种子萌发及幼苗生长的化感效应比较     

胡妍妍  王丹  曾嵘 《北方园艺》2016,(21):89-91

以天人菊、金鸡菊和蛇鞭菊为试材,比较两两混种与单种在种子萌发和幼苗生长阶段相互间的化感效应强度。结果表明:两两混种下,金鸡菊、蛇鞭菊对天人菊生长起促进作用,化感效应强度为金鸡菊蛇鞭菊;天人菊、蛇鞭菊对金鸡菊生长起抑制作用,化感效应强度为天人菊蛇鞭菊;金鸡菊、天人菊对蛇鞭菊生长起抑制作用,化感效应强度为金鸡菊天人菊。  相似文献   

抗青枯病樱桃番茄品种的初步筛选及评价     

曾莉莎  胡规媛  莫秀文  杜彩娴  王红  梁少丽  吕顺  李洪波  郑汉文  刘建平 《长江蔬菜》2016,(22):59-62

对28个樱桃番茄品种的田间抗病性、植株类型、单果质量、果色、可溶性固形物含量等主要经济性状进行调查。试验结果表明,感病品种红艳发病最重,发病率为73.67%,其次是红箭、红日和金艳,发病率分别为23.33%、21.67%和20.33%,其他品种发病率都在20%以下;28个品种的果实颜色、大小、口感等差异明显,除黑宝石映泰及黄金蛋可溶性固形物含量在4.10%以下外,其他品种可溶性固形物含量都达5.20%以上。综合分析,筛选出绿天使、粉仙、红娘9号、绿圆、格丽贝、红椭圆等11个抗青枯病且经济性状优良的樱桃番茄品种,为优质抗青枯病樱桃番茄的选育和推广提供了参考。  相似文献   

社会主义新农村建设目标及实现   总被引：2，自引：1，他引：1  

曾庆学 《信阳农业高等专科学校学报》2007,17(1):32-33

“生产发展、生活宽裕、乡风文明、村容整洁、管理民主”是社会主义新农村建设的主要目标,它是物质文明、精神文明和政治文明的具体体现。这些目标的实现,有赖于党的坚强领导,农民生活条件的改善和自身素质的提高。  相似文献   

丛枝菌根真菌接种对白车轴草耐盐性的影响     

赵艳兰  曾鑫奕  弓晋超  李香君  李旭旭  刘珊  张新全  周冀琼 《草业学报》2023,32(3):179-188

丛枝菌根真菌(AMF)可与植物共生形成复杂的菌丝网络,影响植物生长及抗逆能力。目前关于AMF对白车轴草耐盐性的影响尚存争议,本研究采用盆栽试验,研究在盐胁迫条件下(NaCl浓度为150 mmol·L^-1),接种AMF对拉丁诺白车轴草耐盐性的影响。结果表明,在盐胁迫条件下,与对照相比,白车轴草的生长与生理指标均受到抑制。盐胁迫下接种AMF后,白车轴草株高、干重、PSⅡ最大光能转换效率和相对含水量均有增加,丙二醛(MDA)含量以及相对电导率有所降低,渗透调节物质均有提高,其中可溶性糖(SS)和游离脯氨酸(Pro)含量分别提高了32.03%和9.42%。说明盐胁迫抑制白车轴草的生长,接种AMF增强了白车轴草抗逆适应能力,促进白车轴草的生长,增加渗透调节物质含量,提高白车轴草耐盐胁迫的能力。  相似文献   

利用SSR标记构建贵州山区玉米杂交种的指纹库     

曾桂萍  戴保威  余显权  田兴文 《种子》2007,26(8):45-47

对贵州山区目前在生产上正在使用的西山系列玉米杂交种12份进行了SSR分析。从60对引物中筛选到稳定性好、多态性丰富的8对引物作为核心引物。用这8对引物的指纹组合构建了贵州山区西山系列玉米杂交种的DNA指纹数据库。结果表明,利用SSR技术进行玉米杂交种真实性的鉴定是可行、有效的。  相似文献   

Application of Slicing in Component-based System Regression Testing     

FU He-gang  LI Fu-xin  ZENG gang 《保鲜与加工》2007,(6):93-96

In component-based system regression testing, the dependence model of component-based system should be built in order to confirm the part which will be affected by modify. Since high reusability and high complexity, the existing dependence models may not be applicable to component-based systems, a hierarchical dependence model is proposed to describe component-based. Through the forward slicing of modified points in the model, the modified and affected parts can be gotten, then traverse these parts and get affected testing path, thereby regression testing examples can be chosen effectively, the efficiency of regression testing can be improred.  相似文献   

Advances in Pharmacological Studies of Coptis Chinesis     

YU Yuan-yuan  WANG Bo-chu  PENG Liang  WANG Jing-bo  ZENG Chen 《保鲜与加工》2006,(2):107-111

A Coptis Chinesis is the dry rhizoma of ranunculaceous Coptis Chinesis Franch or Coptis deltoidea C. 7. Cheng et Hisao, or Coptis teeta Wall. It is the traditional Chinese herb, which is used in the contagious diseases. In recent years, its new pharmacological actions have been reported, which are antitumour, hypoglycemic response, immunoloregulation, improving the functions of cardiovascular. The important pharmacological functions of Coptis Chinesis are hypoglycemic response, improving the functions of cardiovascular, antitumour. With the deeply researching of Coptis Chinesis pharmacology, and the continuous founding of pharmacological mechanism, new preparation will be widely applied in the clinic.  相似文献   

BIM Based on Intelligent Parametric Modeling Technology   总被引：1，自引：0，他引：1  

ZENG Xu-dong  TAN Jie 《保鲜与加工》2006,(6):107-110

In order to push the informationization process of the building industry,promote sustainable architectural design and enhance the competitiveness of China's building industry,the authors study BIM(Building Information Modeling) based on intelligent parametric modeling technology.BIM is a new technology in the field of computer aided architectural design,which contains not only geometric data but also the great amount of engineering data throughout the lifecycle of a building.The authors also compare BIM technology with 2D CAD technology,and demonstrate the advantages and characteristics of intelligent parametric modeling technology.BIM,which is based on intelligent parametric modeling technology,will certainly replace traditional computer aided architectural design and become a new driving force to push forward China's building industry in this Information Age.  相似文献   

Baseband System Design of DBF with DSP FPGA     

XIE Li-ying  ZENG Hao 《保鲜与加工》2007,(10):65-68

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