银质针导热疗法治疗慢性下腰痛的临床观察

[摘要〕目的观察银质针导热疗法治疗慢性卜腰痛的临床疗效〔方法将80例患者随机分为治疗组与对照组, 治疗组予以银质针导热疗法,对照组予以小针刀,2周1次,2次为1个疗程,经1个疗程治疗后于2周、12周时进行 疗效评定,统计临床疗效〔结果治疗后2周,两组患者卜腰痛症状均有缓解,经比较差异无统计学意义(P>0.05);12 周后对照组总有效率为76.3 0Ic ,治疗组总有效率为90.50Ic ,治疗组远期疗效明显优于对照组,差异有统计学意义(P< D.OS )、结论银质针导热疗法治疗慢性卜腰痛疗效明显,且具有较好的远期疗效、     

我国棉田玉米螟研究概况

棉田亚洲玉米螟(Ostrinia furnacalis Guenee)是一种重要的棉花害虫。综述了我国在玉米螟生物学、生态学、测报和防治技术方面的研究,以期为农业生产上的防治工作有所裨益。     

钾营养对水培棉花生长发育的影响

通过营养液培养研究钾营养对棉花生长发育的影响,结果表明:与对照相比,适当提高营养液中K的浓度.能明显促进棉花生长,其株高、叶面积均增高、增大;棉花株高的生长呈"S"形曲线生长即初期慢.中期快,后期又慢,直至稳定生长,棉花主茎平均日增长量呈单峰曲线动态变化.充足的K营养也促进了棉花根系的发育.提高了根系活力、根系总吸收面积及活跃吸收面积,但品种的不同,其表现也不同.新陆早13的低钾处理优于高钾和对照处理,中棉36随K浓度增加表现更优.与此同时提高营养液中K的水平.也能明显提高叶片中chla、chlb和叶绿素含量,但K过高不利于叶绿素的合成,试验的两个品种在此范围内表现一致,低钾处理>高钾处理>对照处理.     

Study on Cell Suspension Culture of Floribunda Rose

Friable callus was induced when immature seeds of floribunda rose were inoculated on MS medium supplemented with 2,4-D 3.0 mg.L^-1. When transfered onto subculture media, friable callus developed into embryogenic callus, which was used to establish cell suspension lines. Cell suspensions had to be subcultured at a interval of 4-5 days at the first several culture cycles. The best subculturing cycle for the stable cell suspensions was 8-10 days. The best inoculum quantity was 1 mL PCV（Packed Cell Volume） per 40 mL culture fluid.     

Exploitation of Wild Flowers and the Sustainable Development of Flowers Industry in China

This article introduced the new methods on the research of the wild flowers and plants idioplasmic resources, elaborated the introduction and domestication and exploitation of wild flowers and plants idioplasmatic resources and the sustainable development of flowers and plants industry in China, and put forward some proposals on the existing question and the prospects for the development.     

An Empirical Estimation of Effects of Priority Forestry Programs on Farmers’ Incomes in China

China has launched six Priority Forestry Programs (PFPs) since 1998, i.e. the Natural Forest Protection Program, the Cropland Conversion to Forest and Grassland Program, Sandification Control Program for the Vicinity of Beijing & Tianjin , Wildlife Conservation and Nature Reserve Development Program, Forest Industrial Base Development Program and Shelterbelt Development Programs for regions such as Three North and the Yangtze River Catchments. The Government of China has made different policies for these PF...     

Spatial Variability of Soil Saturated Hydraulic Conductivity in a Small Watershed of Loess Hilly Region,China

Saturated hydraulic conductivity (Ks) is an important soil hydraulic parameter for charactering the rate of water flow across the soils and is mainly related to its high spatial variability. In a small watershed with the area of 0.27 km2 in the Loess Plateau, Ks of 197 soil samples under different vegetations and landforms were measured. Ks had a moderate variability for total samples. The forestland had high Ks with low coefficient of variation (CV), but the grassland in the watershed bottom had low Ks wit...