The Evaluation System of Agent of Government Investment Project Based on AFD

According to analyses of the existing problems in the evaluation of agent of government investment project, combining with the characters of the substituted construction system of the government invested project and the project management, a performance evaluation index system of the agent of government invested project was constructed, fdlowing the basic principles of the index settlement. It introduces the AHP, the fuzzy evaluation mode, and the ADF comprehensive evaluation mode based on DEA, and gives some practical examples.     

浅圆仓玉米破碎率调查报告

本文通过对浅圆仓储存玉米的破碎率进行调查，分析了输送流程中各种输送设备对玉米破碎率的影响程度；通过对入储浅圆仓后的玉米破碎率高低的分布作较详尽的调查，指出玉米破碎导致脂肪酸值快速升高，影响了玉米储存安全。文章提出了影响玉米破碎率的因素和减少破碎率的建议。     

不同水(陆)稻品种(系)干旱胁迫效应分析评价

为了扩大水稻抗旱资源的应用,提高水稻抗旱育种效率,对来自17个不同国家105份水(陆)稻品种(系)进行干旱胁迫效应评价。采用了同异分析法,在干旱胁迫下,株高、单株有效穗、穗长、每穗实粒数、每穗总粒数、结实率、千粒重、单株谷重8项农艺及经济性状,进行了综合评价分析。结果表明:105份水(陆)稻品种(系),分析评语"差"的有60个品种,占57.1%;"一般"的评语共有22个品种,占21%;"较好"和"好"的评语各有10个品种,占9.5%;"优良"的只有4个品种,占3.8%,分别为IR77298-14-1-2-13、IR77298-5-6-18、CACHO PRETO、IR77298-5-6-11,均为籼稻品种。由此得出,籼稻品种抗旱性明显高于粳稻品种,抗旱同异评语的级别与每穗实粒数、结实率、单株谷重3个性状密切相关。     

Critical Discussion on Abortive Interspecific Crosses in Brassica

In most interspecific hybridization among diploid Brassica species (n = 8, 9, 10), few or no hybrids are obtained, and the three crosses of tetraploid (n = 17, 18, 19) by diploid species are usually only partially successful, especially in one of the reciprocal crosses. Such a cross-incompatibility complex is explained in this paper by a polar-nuclei activation (PNA) hypothesis which proposes two reversible functions, a normal reproduction and a sexual barrier, of double fertilization in higher plants. The first, i.e. the relative activating value (AV) of diploid species, was estimated as 1.0–3.5, whereas that of tetraploid species was 2.7–5.2. In addition, crosses with a polar nuclei activation index (AI) of about 15–87 % were compatible but those beyond the two limits were incompatible, 50 % of those showing normal seed development after self-pollination.     

基于CVM 的吉林省湿地生物多样性

湿地生态系统作为全球生态系统的重要类型之一,在维持生物多样性方面发挥着举足轻重的作用。为了更好地保护湿地,笔者基于条件价值法(CVM)这一当前国际上比较成熟的生态系统价值评价方法,对吉林省湿地的生物多样性维持服务价值进行定量评价。研究采用实地调研和网络发放结合的方式进行支付意愿问卷调查,共发放支付卡式问卷500份,回收有效问卷491份。结果表明,吉林省湿地2012年人均支付意愿值为120.7元/a,根据全国和吉林省人口总数计算的吉林省湿地生物多样性维持服务价值分别为1005.1亿元和20.8亿元。受访者受教育的程度、收入水平和对湿地生物多样性的关心程度对支付意愿具有显著影响,与平均支付意愿值呈显著的正相关关系(P<0.05),而性别和年龄对受访者支付意愿没有显著影响。调查方式和距离远近也会对支付值有显著影响(P<0.0001)。为了保护好吉林省的湿地生物多样性,政府应该加大宣传力度,提高公众的环保意识。研究结果将使湿地保护和开发的价值对比成为可能,对于制定合理的区域生态保护和经济开发决策、保护和恢复湿地生态系统具有重要意义,为政府相关政策的制定提供理论基础。     

Forage Chicory: A Plant Resource for Nutrient-Rich Sites

Grazing livestock create localized nutrient patches that increase soil ionic strength (IS) and influence plant productivity. The ability of plant root systems to control ion absorption and flux to xylem, and to sequester ions reaching leaf tissue in bound, nontoxic forms are means of minimizing IS. A greenhouse experiment was conducted to determine the growth and mineral acquisition responses of forage chicory (Cichorium intybus L. cv. Grasslands Puna) to increasing (0.9, 4, 8, and 12 dS m^?1) IS in the rhizosphere obtained by additions of NaCl/CaCl₂ (1 : 1 m ratio). Plants were harvested four times after planting (20, 27, 34 and 41 d) to identify responses as a function of time. Increased accumulation and localization of Na in roots in comparison to shoots suggested that chicory restricted Na transport to shoots, and that insoluble Na in tissues increased with increasing IS. Soluble cations in shoots were about 50 % of total cations, irrespective of rhizosphere IS and Na uptake. Differences in the cation:anion ratio could not be accounted for by organic acid concentrations in chicory, but substantial accumulation of nonstructural carbohydrates as fructans in roots could contribute to charge balance. Our results demonstrate that forage chicory has moderate tolerance to IS, suggesting that it might be a useful species for sites with potential for IS. Chicory growth would probably be sustained under IS conditions, and the resultant vigorous growth and accumulation of mineral nutrients in shoots would contribute to acceptable nutritive value for grazing livestock. Plants capable of growing in and acquiring nutrients from nutrient‐laden patches in the sward would help minimize erosion and nutrient transport, with positive benefits for water and soil quality.     

高粱区域试验新杂交种的综合评价

采用模糊数学综合评判方法,综合评价了1989年山西省高粱新杂交种区域试验材料.结果表明,6个高粱新杂交种,其中晋杂871、21A×晋粱五号、FA×8643变3个组合以亩产量、丰产素质为主,包括抗病性、抗倒性、株高在内的综合性状明显优于对照晋杂四号,达到优良或较好的评价标准,其综合指标值分别比对照增加18.29%、11.28%和7.00%.晋杂871对不同环境的适应能力强,综合性状稳定性好;旱抗六、V_4A×87382-3两个杂交种综合特性与对照相当;旱抗五劣于对照,综合指标值比对照减少5.06%.模糊综合评判方法,客观地反映了品种的综合特性,克服了仅用产量指标评价品种优劣的不足,对新品种的审定、推广利用都具有实际意义.     

: a software to evaluate model performance

The software (Integrated Resources for Evaluating Numerical Estimates) is a data analysis tool designed to provide easy access to statistical techniques for use in model evaluation. Mostly, non-replicated model estimates (E_i) are compared against non-replicated measurements (M_i). The software also allows comparing individual estimates against replicated measurements (or vice versa) and replicated estimates against replicated measurements. The evaluation of model performance is essentially based on the difference E_i−M_i, or on the correlation–regression of E_i vs. M_i (or vice versa). In addition, model evaluation by probability distributions, pattern analysis, or fuzzy-based aggregation statistics is allowed. Graphics are included in most analytical tasks. The results are displayed in separate spreadsheets and can be exported into MS Excel workbooks.     

系祖轮配对维持并提高豫州褐壳蛋鸡Ⅲ系生产性能的研究

对豫州褐壳蛋鸡Ⅲ系采用系祖间轮配的选配方法，经过连续3个世代的选育，开产日龄推迟5．72d，开产平均蛋重减少0．87g，72周龄平均蛋重增加2．82g、蛋数增加8．62枚，蛋品质维持在较高水平，蛋壳颜色变深。说明对已育成的纯系采用系祖间轮配的选配方法，可以维持并提高其生产性能。