茄子、番茄异属间嫁接抗病增产效果初步研究

本试验采用茄子、番茄异属间嫁接,研究嫁接体生长发育、抗病增产效果及嫁接对果实品质的影响。结果表明:茄子/番茄二者共生亲和性较好,嫁接成活率较高,不同品种的番茄砧木对茄子的生长发育有不同的影响,但总的来说,嫁接改善了植株的生长势,黄萎病同期发病率、病情指数均低于对照且增产效果明显,嫁接后对果实的品质也没有不良的影响。总体来说,采用茄子、番茄异属间嫁接栽培具有可行性,嫁接栽培可望成为茄果类蔬菜克服连作障碍抗病增产的一项有效措施。     

西方体育产业的运行机制和我国武术"嫁接"的可能性研究

通过对西方体育管理体制和市场运作机制的了解，分析西方体育与我国武术的差异与类同，从而说明西方体育产业的运行机制与我国武术“嫁接”的可行性。     

Grafting Copolymerization of Styrene and Acrylic Acid onto Pre-irradiated Polypropylene Fabric

l introductionGrafting polytnerization is a valuable method forthe modification of the chemical and physicalProperties of polymer surfaces. It can provide somedesirable Properties such as biocompatibility['],.ion-exchWe['] and thermo-sensitivity['], etc. somemethods have been studied in grafting polymerizstion,for example, ionization irradiation['], ultravioletlight['], plasma, chemical initiators and others[6].Radiation grafting is one of the most Promisingmethods because it can be effective…     

论旅游中的文化嫁接、设计及其责任--以“泰州水城慢生活”旅游项目推进为例

旅游景观吸引力和旅游产业的发展与文化含量密切相关,增强旅游的文化含量是提升旅游层次的必然要求。泰州水城慢生活旅游的发展与层级的提升所依靠的正是文化的力量。以文化提升旅游层级,要搞好文化资源与旅游项目的嫁接,精心进行活动项目的情境设计、情感激发和节奏控制;要进行旅游深度与景区魅力角色体验设计、文化渗透设计、对应互补设计,努力提高景观吸引力,满足游客多元化需求;要提升旅游品质,增强社会责任,充分发挥旅游文化的“化人”功能,促进旅游事业的持续发展。     

Molecular grafting towards high-fraction active nanodots implanted in N-doped carbon for sodium dual-ion batteries

Sodium-based dual-ion batteries (Na-DIBs) show a promising potential for large-scale energy storage applications due to the merits of environmental friendliness and low cost. However, Na-DIBs are generally subject to poor rate capability and cycling stability for the lack of suitable anodes to accommodate large Na⁺ ions. Herein, we propose a molecular grafting strategy to in situ synthesize tin pyrophosphate nanodots implanted in N-doped carbon matrix (SnP₂O₇@N-C), which exhibits a high fraction of active SnP₂O₇ up to 95.6 wt% and a low content of N-doped carbon (4.4 wt%) as the conductive framework. As a result, this anode delivers a high specific capacity ∼400 mAh g⁻¹ at 0.1 A g⁻¹, excellent rate capability up to 5.0 A g⁻¹ and excellent cycling stability with a capacity retention of 92% after 1200 cycles under a current density of 1.5 A g⁻¹. Further, pairing this anode with an environmentally friendly KS6 graphite cathode yields a SnP₂O₇@N-C||KS6 Na-DIB, exhibiting an excellent rate capability up to 30 C, good fast-charge/slow-discharge performance and long-term cycling life with a capacity retention of ∼96% after 1000 cycles at 20 C. This study provides a feasible strategy to develop high-performance anodes with high-fraction active materials for Na-based energy storage applications.     

硅胶表面光引发制备氨基比林分子印迹聚合物的研究

以光引发剂二乙基二硫代氨基甲酸钠对硅胶表面进行修饰,以氨基比林为模板分子、甲基丙烯酸为单体、乙二醇二甲基丙烯酸酯为交联剂,在修饰后的硅胶表面接枝共聚制备分子印迹聚合物。利用红外光谱、电镜对聚合物进行了表征,用紫外分光光度法考察了分子印迹聚合物对氨基比林的吸附特性。结果表明,印迹聚合物对模板分子具有较高的吸附能力和选择识别能力。     

荔枝种植户采用高接换种技术影响因素实证研究——基于广东、广西186户荔枝种植户的调查

以广东省茂名市与广西省玉林市、钦州市16个县的186户荔枝种植户实地调研数据为依据,运用Binary regression logistic模型实证研究荔枝种植户采用高接换种技术影响因素,研究发现,荔枝生产年限、土地成本、销售价格、技术实施成本对荔枝种植户采用高接换种技术行为产生显著正向影响。     

g-1;Zn分别是130.14

2倍和1.6倍;各品种3种重金属含量ANOVA分析结果显示了品种间差异具有极显著意义。不同仁色(花仁、红仁及黑仁)长豇豆品种间的3种重金属含量在根部均有显著差异,而Zn及Cd含量在茎组织中也有显著差异;但各组在叶及果实中没有显著差异。尽管污灌区土壤Cd、Pb和Zn浓度均超出了国家土壤环境质量标准二级土壤的最高限值,但绝大多数品种     

中华金叶榆在张家口地区嫁接技术浅谈

本文介绍了中华金叶榆的观赏特性,具体阐述了中华金叶榆在张家口生产中常用的枝接和芽接方法,以及嫁接后的管理要点。为我国北方寒冷地区推广中华金叶榆提供技术参考。     

Cadmium accumulation in different pakchoi cultivars and screening for pollution-safe cultivars

The selection and breeding of pollution-safe cultivars (PSCs) is a practicable and cost-effective approach to minimize the influx of heavy metal to the human food chain. In this study, both pot-culture and field experiments were conducted to identify and screen out cadmium pollution-safe cultivars (Cd-PSCs) from 50 pakchoi (Brassica rapa L. ssp. chinensis) cultivars for food safety. When treated with 1.0 or 2.5 mg/kg Cd, most of the pakchoi cultivars (>70%) showed greater or similar shoot biomass when compared with the control. This result indicates that pakchoi has a considerable tolerance to soil Cd stress. Cd concentrations in the shoot varied significantly (P<0.05) between cultivars: in two Cd treatments (1.0 and 2.5 mg/kg), the average values were 0.074 and 0.175 mg/kg fresh weight (FW), respectively. Cd concentrations in the shoots of 14 pakchoi cultivars were lower than 0.05 mg/kg FW. In pot-culture experiments, both enrichment factors (EFs) and translocation factors (TFs) of six pakchoi cultivars were lower than 1.0. The field studies further confirmed that the Hangzhouyoudonger, Aijiaoheiye 333, and Zaoshenghuajing cultivars are Cd-PSCs, and are therefore suitable for growth in low Cd-contaminated soils (≤1.2 mg/kg) without any risk to food safety.