目录：

股市低价股

关于中药的文献

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黄瓜灰霉病发病规律

股市低价股

1、尽管上证指数还是围绕着2638点这个三年前的低点打转,但每天涨停板个股无数.将那些连续涨停的个股归纳一下,一个共同特点是——低价股.不管什么行业,也不管ST带不带星号,更不管是不是面临退市的风险,市场各路游资不管三七二十一,逮住低价股炒起来再说.

2、其实,这样的炒作行情并非现在的发明,在过往的中国股市历史中,炒低价股、炒垃圾股有着悠久的传统.早期的市场规模较小,游资炒作的逻辑很简单,先消灭2元以下的股票,按照价位50元、3元、4元一个个扫过去,等到炒不动了那就歇菜.至于这公司是干嘛的,与行情无关.现在市场规模大了,炒作的逻辑升级了,除了以价位为标准外,升级版的炒作逻辑标准还有按流通市值规模炒作,比如先消灭10亿元市值的,再往上15亿元、20亿元炒上去.还有其它的标准如按市盈率由低往高炒,按市净率由低往高炒,最后炒不动了,行情结束.

3、这样的炒作,其市场的主力基本上就是最活跃也最不安分的游资,海外机构和国家队主力不可能按这种逻辑炒的.之所以选择低价股,也可以从侧面反映出,当下的游资经历过多次市场的折腾,损兵折将,元气已经大伤,游资手中的钱并不多,只能采用集中优势兵力炒所需资金并不多的低价股和垃圾股,短平快地做行情,打一换一个地方,通过快速炒作来壮大自己的力量.

4、而当下的股市新政也为炒低价股提供了一个良机.比如,前阵子管理层表示,不再对交易环节进行不必要的干预,言下之意,你们爱咋地就咋地.又比如,金融监管机构前阵子表示,加大对民营企业的融资力度,并提出融资指标的要求,而那些低价股公司几乎都是需要拯救的公司,现在利好来了.再比如,先修改《公司法》,再制定回购新规,将回购的标准定为股价低于每股净资产和连续20个交易日股价下跌30%,这些规则都是利于低价股炒作的.

关于中药的文献

1、给你找了两篇: 《 and bioavailability of ginsenoside Rb1 and Rg1 from Panax notoginseng in rats 》 《Chemical Assessment of Roots of Panax notoginseng in China: Regional and Seasonal Variations in Its Active Constituents 》

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1、摇摇他tā掏tāo出chū火huǒ柴chái点diǎn烟yān,一yì边biān迎yínɡ风fēnɡ划huá火huǒ柴chái,一yì边biān说shuō：“点diǎn烟yān不bú过ɡuò三sān,过ɡuò三sān不bù点diǎn烟yān.”

2、摇摇划huá完wán三sān根ɡēn火huǒ柴chái后hòu,烟yān还hái是shi没méi点diǎn着zháo.于yú是shì,他tā大dà声shēnɡ说shuō：“点diǎn烟yān不bú过ɡuò七qī,过ɡuò七qī不bù点diǎn烟yān！”

3、摇摇他tā轻qīnɡ声shēnɡ安ān慰wèi自zì己jǐ：“管ɡuǎn他tā三sān七qī二èr十shí一yī,啥shá时shí点diǎn着zháo啥shá时shí吸xī.”

黄瓜灰霉病发病规律

1、摘 要 对广西三七灰霉病的典型病斑进行分离培养、致病性检测,通过形态学观察并结合rDNA-ITS序列分析鉴定病原菌；通过室内及田间试验研究了温湿度对菌丝生长、孢子萌发的影响,以及病害的病程和病斑显症率,并对不同立地条件、不同生长年限三七灰霉病的发生规律进行调查；最后采用菌丝生长速率法研究了15种杀菌剂对病原菌的抑制作用.结果表明,三七灰霉病病原菌为灰葡萄孢菌（Botrytis cinerea）；菌丝生长、孢子形成及萌发的最适温度为20 ℃,孢子萌发需要高湿度,低于100%湿度不萌发；不同季节、不同生长年限三七的病程为5～13 d,病斑在田间的持续显症期为6 d；三七灰霉病在三七生长期都能发生,10～11月份为发生高峰期,其中不同立地条件下的发病严重度顺序为旱地>坡地>林下,不同生长年限下的顺序为3年生三七>2年生三七>1年生三七；咯菌腈、嘧菌环胺和嘧菌酯、X硅唑对病原菌的菌丝生长抑制率达100%.

2、Abstract In the study, the pathogen of Panax notoginseng Grey was isolated and cultured. Moreover, single spore isolates, morphological observation, pathogenicity test, and combined with molecular biology methods were used to identify the pathogen. Mycelium growth, spore germination, the course of the disease and the lesion appearance rate were stuXXXd in the laboratory and field；The disease occurrence was stuXXXd in the P. notoginseng gardens of different site conditions and different growing years. The inhibitory rates of 15 fungicides were tested using the mycelium growth rate method. The results indicaded that the pathogen was Botrytis cinerea. The proper temperature for mycelium growth, spore forXXtion and germination was 20 ℃； Conidia did not germinate in the condition of relative humidity bellow 100%； The development of the disease was different for P. notoginseng of different age and different season, and the period of symptoXXtic appearance of the disease was about 6 d； The disease occurred during the whole growth period of the host plants, and the disease peak was from October to November； The disease severity was dryland>slope>under forest, and that for growing ages was three years>two years>one year； Four kinds of fungicides including fludioxonil, cyprodinil, azoxystrobin, and flusilazole showed high inhibitory rates of 100% on B. cinerea.

3、Key words Panax notoginseng； grey mould； Botrytis cinerea； occurrence； screening of fungicides

4、中药材三七[Panax notoginseng（Burk.）F.H. Chen]又称田七,为五加科人参属植物三七的干燥根茎,主产于云南、广西,号称“南人参之王”,具有散瘀止血、消肿定痛等功效,被《本草纲目》、历版《药典》等经典文献收录[1-2].三七性喜温凉、阴湿的生长环境,易诱发根腐病、黑斑病、炭疽病、灰霉病等多种病害,给三七的栽培生产造成严重影响[3].随着三七市场价格的调整,2010年始广西百色市靖西、那坡等多地普种三七,上述病害频繁发生,特别是2012～2015年期间在靖西县禄峒乡、新靖乡曾两度流行三七灰霉病,造成叶片大量脱落,植株枯死,药农损失惨重.