Analysis of the independent-and interactive-photo-thermal effects on soybean flowering

Soybean(Glycine max(L.) Merr.) is a typical short-day and warm season plant, and the interval between emergence and flowering has long been known to be regulated by environmental factors, primarily photoperiod and temperature. While the effects of photoperiod and temperature on soybean flowering have been extensively studied, a dissection of the component photo-thermal effects has not been documented for Chinese germplasm. Our objective of the current study was to evaluate the independent- and interactive-photo-thermal responses of 71 cultivars from 6 ecotypes spanning the soybean production regions in China. These cultivars were subjected in pot experiments to different temperature regimes by planting in spring(low temperature(LT)) and summer(high temperature(HT)), and integrating with short day(SD, 12 h), natural day(ND, variable day-length), and long day(LD, 16 h) treatments over two years. The duration of the vegetative phase from emergence to first bloom(R1) was recorded, and the photo-thermal response was calculated. The outcome of this characterization led to the following conclusions:(1) There were significant differences in photo-thermal response among the different ecotypes. High-latitude ecotypes were less sensitive to the independent- and interactive-photo-thermal effects than low-latitude ecotypes; and(2) there was an interaction between photoperiod and temperature, with the effect of photoperiod on thermal sensitivity being greater under the LD than the SD condition, and with the effect of temperature on photoperiodic sensitivity being greater under the LT than the HT condition. The strengths and limitations of this study are discussed in terms of implications for current knowledge and future research directions. The study provides better understanding of photo-thermal effects on flowering in soybean genotypes from different ecotypes throughout China and of the implications for their adaptation more broadly.     

Establishment and Optimization of INH Epitope Peptide Vaccine for Detection of Antibody

In this study, an indirect ELISA method was established to detect inhibin hormone (INH) epitope peptide vaccine antibody, it would provide oretical reference for the determination of Fine-wool sheep after active immune body INH epitope peptide vaccine antibody. On the basis of the predecessors, using indirect ELISA method to determinate serum INH epitope peptide antibody levels of sheep, and through control different experimental conditions to look for the best experimental conditions. Through explorating the experimental conditions, finally, the testing experiment conditions were determined, which was blocked solution with skimmed milk powder, INH and GnIH synthetic peptides dilution degrees for 20 000 times, the optimum reaction time was 60 min, the best color action time was 15 min. In this experiment, a kind of method to detection antibody in the body after INH active immune sheep was built, it would provide a reference for future research.     

Physiological characteristics of high yield under cluster planting: photosynthesis and canopy microclimate of cotton

Cotton produces more biomass and economic yield when cluster planting pattern (three plants per hole) than in a traditional planting pattern (one plant per hole), even at similar plant densities, indicating that individual plant growth is promoted by cluster planting. The causal factors for this improved growth induced by cluster planting pattern, the light interception, canopy microclimate and photosynthetic rate of cotton were investigated in an arid region of China. The results indicated that the leaf area index and light interception were higher in cluster planting, and significantly different from those in traditional planting during the middle and late growth stages. Cotton canopy humidity at different growth stages was increased but canopy temperatures were reduced by cluster planting. In the later growth stage of cluster planting, the leaf chlorophyll content was higher and the leaf net photosynthetic rate and canopy photosynthetic rate were significantly increased in comparing with traditional planting pattern. We concluded that differences in canopy light interception and photosynthetic rate were the primary factors responsible for increased biomass production and economic yield in cluster planting compared with the traditional planting of cotton.     

火灾环境下邻近罐壁热辐射分布实验

油罐火灾蔓延的主要因素是油罐热辐射,在着火罐火焰热辐射作用下,邻近罐极易被引燃,造成整个罐区大面积起火。为了研究邻近罐罐壁热辐射分布规律,建立了油罐燃烧对邻近罐热辐射影响的小尺寸实验装置,开展了火灾环境下邻近罐壁热辐射分布的实验研究。结果表明:在火灾环境下,邻近罐正对着火罐方向的罐壁受辐射作用最大,热辐射从罐顶到罐底逐渐降低、从中心向两边呈轴对称降低;随着L/D(L为相邻两个油罐的距离,D为油罐的直径)增大,邻近罐热辐射下降。实验数据为火灾环境下邻近罐的热辐射研究提供了参考,对防止邻近罐被引燃,做好油罐区火灾爆炸事故的预防具有重大意义。     

美国红枫组织培养研究进展

根据国内外关于美国红枫组织培养的研究,以及实际生产中的经验系统阐述了美国红枫组织培养体系建立的具体过程及研究进展,并提出了存在的问题及展望,为美国红枫的大批量组培苗商业生产提供基础资料。     

对职业生涯规划教育贯穿人才培养全过程的思考

当前,职业生涯规划教育越来越受到高职院校的重视,在全民创业、万众创新的时代,更需要系统考虑职业生涯规划教育的开展与落实,使学生认识到职业生涯规划教育的重要意义。     

五种药用植物提取液抑菌作用研究

采集石菖蒲、酸浆、矮茶子、鸡屎藤和串果藤5种药用植物,以乙醇为溶剂提取其有效成分,并将提取液分别对大肠杆菌、变形杆菌和枯草芽孢杆菌进行抑菌活性试验。试验结果表明,5种植物都具有抑菌作用,但不同植物对不同细菌的抑菌效果有差异。石菖蒲和酸浆提取液对3种细菌都具有较强抑制能力,且对高温稳定。矮茶子、鸡屎藤提取液对大肠杆菌有抑制作用,串果藤提取液对枯草芽孢杆菌有抑制作用,但其抑菌能力不及石菖蒲和酸浆2种植物。     

数字化标准色板与普通板诱杀茶园假眼小绿叶蝉比较试验研究

进行数字化标准色板与普通板诱杀茶园假眼小绿叶蝉比较试验,结果表明:数字化标准色板(以下简称黄板)比普通色板(以下简称绿板)的诱杀虫口数效果明显,试验1 d后黄板比绿板的诱杀虫口量多21.5%,试验3 d后黄板比绿板多63.0%,试验7 d后黄板比绿板多122.0%,试验14 d后黄板比绿板多134.8%,而且对茶叶没有农残。因此,建议在茶园中推广使用数字化标准色板防治假眼小绿叶蝉。     

基于Android系统的移动学习平台研究

通过对国内外移动学习现状进行研究,将移动终端设备技术与移动学习理论相结合,提出了基于Android系统的移动学习平台的总体框架,并对系统的功能模块进行分析,探讨平台实现所涉及的环境与关键技术。