10%灰霉清烟剂防治番茄和茄子灰霉病试验及示范

20 0 2—2 0 0 3年开展了10 %灰霉清烟剂防治番茄和茄子灰霉病的试验及示范工作。试验结果表明,10 %灰霉清烟剂6 0 0 0、75 0 0 g/hm2 对番茄灰霉病的防效分别为91.88%、94 .19% ,显著优于对照药剂10 %速克灵烟剂4 5 0 0 g/hm2 之防效(88.6 0 % ) ;对茄子灰霉病的防效分别为87.31%、92 .73% ,也显著优于速克灵烟剂(85 .86 % )。示范结果显示,10 %灰霉清烟剂对番茄灰霉病的平均防效为93.6 % ,对茄子灰霉病的平均防效为92 .8%。     

不同药剂防治菜蚜的试验

本试验选用 5种不同药剂防治菜蚜 ,结果表明 :1 0 %一遍净 (吡虫啉 )可湿粉对菜蚜的防治效果最好 ,持效期最长 ;快灵 3 0 %可溶性粉防效次之一 ,但持效期比一遍净短。 1 8%杀虫双水剂从药后第 4天开始 ,防效逐渐升高 ,持效期与一遍净相当。 40 %乐果乳油和 2 0 %杀灭菌酯乳油对菜蚜的防治效果不理想     

杀虫剂对菜螟防效和萝卜农艺性状直线相关研究

20 0 0年 ,进行了 5种杀虫剂对萝卜主要害虫——菜螟的防效试验。结果表明 ,药后 9d,2 .5 %菜喜6 0 0倍液 ,10 %除尽 180 0倍液两种杀虫剂对菜螟的防治效果良好。两种杀虫剂对菜螟的防效与萝卜农艺性状之间呈极显著直线相关     

枸杞蚜虫田间防效对比试验

3种浓度沼液和5种农药防治枸杞蚜虫田间试验结果表明,沼液原液田间防效可达到82.60%;5种农药中,10%吡虫啉可湿性粉剂2000倍液田间防治效果最好,达到96.19%,1.8%阿维菌素乳油2000倍液防效为89.43%,42%阿维-毒死蜱乳油4000倍液防效为93.62%,0.9%敌杀死乳油2000倍液防效为94.76%,啶虫咪乳油1500倍液防治效果相对较差,为86.53%。由于沼液原液成本低,无污染,含有丰富的营养物质且具有较好的防效,是枸杞无公害生产中具有广泛应用前景的一种＂生物农药＂。     

百虫净防治棉蚜、棉叶螨药效试验

用百虫净4个浓度进行防治棉蚜、棉叶螨防效试验,认为其防效随其浓度的增大而提高.建议生产上使用750～1000倍液.     

杀虫剂防治橄榄星室木虱药效试验

用 14种市售单剂和 6种混剂对橄榄星室木虱进行田间药效试验 ,结果表明 ,多数药剂对橄榄星室木虱具有良好的防效 ,但对施药后新抽梢上的木虱 ,除了 2 .5 %功夫乳油 2 0 0 0倍液 ,70 %艾美乐水分分散剂2 0 0 0倍液 ,1%威宝乳油 2 0 0 0倍液以及四季红和灭扫利混剂控制能力较强外 ,其余的药剂基本无控制作用 .同时 ,4 0 %氧化乐果乳油 10 0 0倍液 ,35 %水胺硫磷乳油 10 0 0倍液 ,5 0 %巴丹乳油 15 0 0倍液 ,2 5 %速灭威可湿性粉剂 15 0 0倍液 ,2 0 %灭多威乳油 10 0 0倍液 ,0 .2 %爱诺虫清乳油 2 0 0 0倍液 ,扑虱灵和灭扫利混剂表现出了不同程度的药害症状     

苏云金杆菌H3-111菌株对蓑蛾的毒效

通过苏云金杆菌H3- 1 1 1菌株摇瓶培养液对蓑蛾进行室内毒力测定 ,4 8h毒力回归方程为y=4 1 94 0 +3 31 85x ,r =0 95 31 ,LC5 0 =0 0 0 0 0 2 5 7,与标准品比较其生物效价为 4 86 2 93IU·mg- 1 ,有较高的毒效 ;同时经大田试验表明BtH3- 1 1 1菌株防治蓑蛾高峰期在药后 72～ 96h ,稀释 5 0 0～1 0 0 0倍的防效达 92 4 6 %～ 95 1 5 % ,超过化学农药DDVP的最高防效 (85 0 7% ) ,可替代化学农药用于蓑蛾的防治中     

生防菌ANTI-8098A对青枯雷尔氏菌生物测定方法的研究

试验利用番茄组培苗对青枯雷尔氏菌接菌方法进行了比较 ,并进行了生防菌 ANTI- 80 98A对青枯雷尔氏菌体外抑制作用的生物测定。试验结果表明 ,灌根法接菌 6d后的平均死亡率为 84.40 % ,剪叶法接菌6d后番茄组培苗的平均死亡率为 98.34% ,剪叶法接种的番茄组培苗的发病速度高于灌根法。青枯雷尔氏菌浓度较低 (0 .1× 1 0 8以下 )时 ,灌根法接菌 6d后番茄组培苗的平均死亡率为 61 .5% ,剪叶法接菌 6d后番茄组培苗的平均死亡率为 1 0 0 .0 % ,剪叶法引起的发病率更高。采用剪叶法进行生防菌 ANTI- 80 98A对青枯雷尔氏菌体外抑制作用的结果表明 ,1 0 0和 2 0 0倍菌液处理组的番茄组培苗不发病 ,防效达 1 0 0 % ;30 0倍番茄组培苗第 7d发病率为 1 5% ,防效达 85%。     

烟草普通花叶病的发生与药剂防治研究

对烟草普通花叶病的发生与药剂防治进行研究的结果表明 ,花叶病在 4月上旬严重发生 ,于 5月上中旬达到高峰。在选用的几种药剂中 ,病毒必克防治效果最好 ,为 5 5 .6 5 % ;其次是菌克毒克的防效为 5 0 .8% ;金叶宝的防效为 36 .1% ,植病灵的防效最差 ,仅为 0 .9%。     

5%安索菌毒清防治棉花枯萎病药效试验

5%安索菌毒清防治棉花枯萎病具有一定的防效,防效达36.5%—51.7%,且随浓度升高防效增加,生产上应用采用200倍液,200ml/穴,定苗后灌根,生长期灌根二次.     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.