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The advances in the treatment of heart failure with Yangxinshi tablet are reviewed in this paper.Yangxinshi tablet has effects of nourishing myocardia,improving myocardial metabolism,reducing myocardial oxygen consumption,dilating coronary artery,improving cardiac blood supply,reducing blood viscosity and improving microcirculation,and it can improve the functions of heart and curative effect of heart failure. 相似文献
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分析指出,玉米出口有望重新启动,有利于支撑季节上涨行情;国内淀粉加工利润逐渐好转,深加工需求有望逐步复苏;北方港口玉米库存压力增加,广东玉米价格持续低迷;美国玉米面积有望大幅增长,芝加哥玉米价格开始走弱;国内CPI价格连续上涨,粮食价格仍在可承受范围之内;后期玉米价格走势看好. 相似文献
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桂花坛焖鸡,其历史悠久,起源于明朝洪武年间.明代的开国皇帝朱元璋,到晚年想延年益寿、长生不老,命御厨挑选2个月～3个月的鲜活童子鸡宰杀后,配用20余种能调理人体功能的中草药浸泡到12 h后,把鸡放入写有“桂花“两个字的陶制坛子里,用文火焖熟.味道鲜美风味独特,具有清心健脑、滋阴壮阳、延年益寿之功能,特别是老年人十分喜爱的具有美容保健功能的营养性食品.…… 相似文献
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张平 《农产品加工．学刊》2007,(3):24-26
洋葱也叫圆葱、葱头、玉葱,原产中亚(伊朗、阿富汗)和西亚(地中海沿岸),属于百合科葱属,为二年生草本植物.食用部分是肥大的鳞茎,含有较多的蛋白质、糖类、维生素以及多种矿物质,具有特殊的辛辣味.不同的洋葱品种其耐贮运性差异较大.…… 相似文献
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刘力 《农产品加工．学刊》2007,(2):61-63
在河北沧州和保定的乳饮料厂家中, “都益“四连袋装乳饮料除了在保定市及部分县有一点知名度外,在河北廊坊的知名度为零. “都益“由起初的10万元资产开始运营,到在当地作为专门经销的第一个品牌.在此过程中从不能进大型超市,到能做到一定的销售量,再到在保证不亏本的情况下,接其他新的产品,这一发展过程值得中小企业的借鉴.…… 相似文献
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天然干酪成熟过程中营养成分与风味变化的研究分析 总被引：2，自引：0，他引：2
通过对不同品种干酪的综合分析,系统地阐述了干酪在成熟过程中营养成分与风味的变化,乳糖、脂肪、蛋白分别在风味变化中所起的作用以及产生风味变化的来源,并简单介绍了干酪的种类与适于中国人口味的干酪的发展前景. 相似文献
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This study discussed the development and evolution of Chinese royal gardens from the initial generation period (Zhou,Qin and Han dynasties) to the late mature period (middle Qing Dynasty to the late Qing Dynasty).Through the specific analysis of the typical royal gardens in different periods,the development and changes of the gardening skills and overall layout of the royal gardens in each period were obtained,and the development characteristics of the whole historical period of the Chinese royal gardens were summarized. 相似文献
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XIE Xueqiang 《Journal of Landscape Research》2020,(2):95-98
The native and introduced ground cover plants were screened by field survey,cultivation test and configuration effect evaluation in arid valleys of Ganzi Tibetan area.A total of 205 species belonging to 140 genera,67 families were selected as applicable types.Among them,there were 53 species of evergreen shrubs,36 species of deciduous shrubs,17 species of woody vines,99 species of herbaceous plants;27 species of color-leafed plants,8 species of succulent plants.And 79 species were recommended as the best ground cover plants.Higher plants in Ganzi Tibetan area were increased to 5,362 species,1147 genera,244 families through screening. 相似文献
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通过对福建省泉州市两栖动物资源调查,采用物种多样性指数和G-F指数对泉州两栖动物多样性进行评估以及对其地理分布进行了聚类分析。结果表明,泉州两栖动物共计32种,隶属2目7科11属;各地区的两栖类物种多样性差异较大,德化两栖动物的种类最多,为27种,其次是永春,为17种,物种数最少的分别是鲤城和石狮,均为3种。其中德化两栖类的F指数达3.54,G指数达2.43,为泉州地区最高,鲤城和石狮的F指数（0.69）和G指数（0.33）均为泉州地区的最低值;聚类分析表明两栖动物在泉州地区的分布主要受地理位置、温度和气候等因素影响。研究结果为泉州市两栖动物保护和监测提供了科学依据。 相似文献
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Species hybrids in Delphinium 总被引：1，自引：0，他引：1
R. A. H. Legro 《Euphytica》1961,10(1):1-23
In the past many attempts have been made to cross the red and yellow flowering Delphinium species with cultivars of D. elatum. The poor results however are an indication that for this combination there is a cross barrier, the more so as both artificial and natural species hybrids in the genus Delphinium occur frequently. This is confirmed by the present investigations and the data obtained show that the barrier in the first instance is due to a difference in chromosome number between the diploid species and tetraploid cultivars. When the diploid parent plants have been made tetraploid by means of colchicine, a second barrier appears to exist for some crosses in one given direction.It has been shown that hybridization of red-flowering D. cardinale tetra and D. nudicaule tetra with D. elatum cv. offers few prospects for Delphinium breeding; however, the species hybrid D. nudicaule x cardinale tetra (as ) is more promising. In the latter case of these threefold species crosses fertile progenies have been obtained producing the desired combinations orange and red combined with large and semidouble flowers.Although nothing can be said as yet of the hybrids of D. elatum cv. and the yellow flowering D. zalil tetra, produced in 1960, the introduction of the yellow flower colour via crosses with D. zalil x cardinale tetra is not possible on account of sterility of the F1.Apart from twofold species hybrids, attempts to obtain threefold and fourfold species crosses along mutually different lines have also been successful. 相似文献
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Alice M. Evans 《Euphytica》1962,11(2):164-176
This investigation confirms the existence of a high degree of incompatibility between species of Trifolium. Two techniques were developed in an attempt to overcome the barriers to hybridization. The first deals with the use of grafting as a screening technique for compatible genotypes, and the second is an embryo culture method for salvaging hybrid embryos which would otherwise abort. The value of these methods is discussed, and the results are compared with those from hybridizations of non-grafted material and of seed set without artificial embryo culture. Hybrids were obtained from three species combinations at different levels of ploidy. 相似文献
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Alice M. Evans 《Euphytica》1962,11(3):256-262
In this investigation, pollen tubes were traced in intraspecific and interspecific crosses in Trifolium. Pollen tube growth was slower in the interspecific crosses examined but no failure of pollen germination was observed. Incompatibility of the pollen tube and stylar tissue proved to be an important pre-fertilization barrier to compatibility and a parallel could be drawn between the success of the pollen and the success of vegetative grafting of the genotypes. 相似文献
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优良草坪新品种在昆明地区的引种适应性评价 总被引：1，自引：0，他引：1
对47个冷季型草种在昆明地区进行了引种适应性评价.结果如下:(1)5个草坪草从播种到出苗所需时间不同,多年生黑麦草出苗最快,高羊茅次之,剪股颖、早熟禾最慢.同一草坪草在幼苗期和成坪后生长速度不同,不同草坪草在幼苗期或成坪后生长速度也不同,高羊茅、黑麦草的草坪自然高度都相对较高,各个草坪草品种间存在差异.(2)早熟禾、匍匐剪股颖的叶片质地最细,其次为多年生黑麦草,高羊茅最粗糙.草坪各个品种之间的密度存在差异,表现较好的有火龙、21世界、优美、碧盛、高地和太阳城.(3)早熟禾、剪股颖盖度较黑麦草、高羊茅要好.(4)黑麦草的再生性最好、高羊茅次之,剪股颖、旱熟禾最慢.(5)黑麦草、高羊茅叶绿素含量较高,与外观表现一致,各个草坪草品种的均一性之间差异显著. 相似文献
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霍山产3种药用石斛及其杂交优势种的ISSR—PCR分子标记鉴别 总被引：3，自引：0，他引：3
目的 :利用ISSR分子标记技术对安徽霍山产3种药用石斛及其杂交优势种进行鉴别.方法:优化ISSR-PCR反应体系:引物\[(AC)8CT\]0.5 μM,Mg2+ 2.0m M,dNTP 200 μM,Taq 1 U/20 μl,筛选出RP值高的引物,建立ISSR分子标记指纹图谱.结果:根据ISSR分子标记指纹图谱可以鉴别霍山产3种药用石斛及其杂交优势种.结论:ISSR分子标记技术可用于霍山产3种药用石斛及其杂交优势种鉴别,且简单、经济、重现性好. 相似文献
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叶绿素酶(Chlorophyllase)是所有光合生物叶绿素代谢中最重要的酶之一。叶绿素酶催化叶绿素的水解,产生脱植基叶绿素和叶绿醇。以烟草祖先种和重要野生种为研究对象,以拟南芥CHLOROPHYLLASE 1 (CLH1)为探针,通过同源序列搜索,从数据库中获取普通烟草(Nicotiana tabacum)及祖先种、烟草属重要野生种中的CLH1基因及其蛋白序列,并通过生物信息学分析手段对其编码蛋白的理化特性、氨基酸序列特征、蛋白结构与功能、启动子序列及表达调控特征进行了分析,并以林烟草(Nicotiana sylvestris) Nsyl CLH1为代表,预测了该基因启动子的顺式作用元件,以渐狭叶烟草(Nicotiana attenuata) Natt CLH1为例,预测了该基因的编辑位点。结果表明,栽培烟草CLH1蛋白虽在理化特性上存在差异,但氨基酸序列分析表明这些序列高度相似;对林烟草Nsyl CLH1基因的启动子顺式作用元件分析显示,除光响应作用元件、抗病性作用元件、干旱和盐分等作用元件,还有与茉莉酸甲酯(Methyl jasmonate,Me JA)、赤霉素(Gibberellic acid,GA)、脱落酸(Abscisic acid,ABA)和水杨酸(Salicylic acid,SA)等激素响应相关的元件,表明Nsyl CLH1基因的表达水平受多种因素的影响。最后,基因编辑位点预测显示渐狭叶烟草Natt CLH1可能跨越外显子-外显子连接。为茄科烟草属植物CLH1基因的功能研究、基因编辑及品质育种等提供了理论基础。 相似文献
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棉属8个野生种2个二倍体栽培种对陆地棉的改良效应 总被引：10，自引：0，他引：10
１９７４～１９９３年间，用棉属８个野生种两个二倍体栽培种作父本与陆地棉进行种间杂交，从其后代出，选育出１０个具有丰产，优质，抗病的新品系和１２８个各具优良性状的种质材料，其中６个已参加了省级上区试，它们分别属于８种类型：高衣分（４４％～４８％），长绒（３６．０～４０．６ｍｍ），高强纤维（２５．３～３３．３ｇ／ｔｅｘ），大铃（７．０８～９．３０ｇ），最佳麦克隆值（３．７～４．０），抗棉蚜（Ｉ－ＩＩ级 相似文献
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Two hundred and twelve accessions of 8 diploid and 10 polyploid species of Aegilops were evaluated for resistance to tan-spot disease of wheat, caused by Pyrenophora tritici-repentis (Died.) Drechs., under greenhouse conditions. One or more accessions of Ae. bicornis, Ae. biuncialis, Ae. Crassa, Ae. columnaris, Ae. cylindrica, Ae. speltoides, Ae. squarrosa. Ae. triaristata. Ae. triuncialis, and Ae. Ovata showed resistance following a 24-hour post-inoculation wet period. With a 36-hour wet period, diploids became only slightly or moderately susceptible and resistant polyploids became susceptible. A 48-hour wet period resulted in still greater susceptibility of both diploid and polyploid species. 相似文献