茭白节水栽培技术研究

采用不同深度水层处理茭白，研究对茭白生长发育、产量和品质的影响。结果表明：三种处理在产量性状上与对照存在极显著差异，而株高、叶片数、分蘖数以及品质等生物学和品质性状与对照无显著差异。当年栽植在节水35．3％的情况下，处理I比对照增产9．2％。     

Bt基因抗虫棉几个主要性状遗传相关性研究

对不同抗虫棉品种间几个主要性状的差异显著性、遗传力及相关性进行了分析。结果表明：在不同品种间，生育期、果枝数等几个主要性状差异显著；遗传力大小顺序为：皮棉产量〉霜前皮棉产量〉株高〉节他〉生育期〉果枝数；生育期与节位、霜前皮棉产量与皮棉产量呈极显著正相关，生育期与霜前皮棉产量、果枝数与节位呈极显著负相关。     

小麦生理性状的遗传变异及其与产量的关系研究

利用20个品种(系)探讨了小麦部分生理性状的遗传变异及其与产量的关系.结果表明,除生殖生长期外,其余性状在小麦基因型间均存在显著的遗传差异.生物学产量、叶绿素含量、营养生长期、生殖生长期与营养生长期之比与产量相关显著,且遗传力较高,可作为产量选择的间接指标.高产品种在经济系数、生物学产量、叶绿素含量、叶面积等性状上存在优势,在干物质积累上具有灌浆速度快的特点.     

棉花植株性状、产量性状及品质性状的典型相关分析

对2005年全国棉花品种A组区试13个品种的7个植株性状、7个产量性状和8个纤维品质性状组进行典型相关分析,结果表明,选择出苗—开花及全生育期短与果枝数适中的性状,有利于提高皮棉产量及霜前皮棉产量。生育期长的性状,则果枝始节高,果枝数多,对纤维长度、整齐度、纺纱均匀性指数产生负效应。结铃性强、株铃多的性状,可同步提高铃重,但会间接导致纤维长度、比强度、整齐度及纺纱均匀性指数的降低,麦克隆值的增加,影响纤维品质。衣分高的性状,可有效地提高皮棉和霜前皮棉产量,降低纤维黄度,但会促使麦克隆值的增大,使纤维变粗。     

33份小麦新品系的产量和品质性状及其相关性分析

以2014—2015年度驻马店市农业科学院小麦研究所选育的33份小麦新品系为材料,以周麦18为产量对照,以豫麦34为优质对照进行比较,研究产量和品质性状及其相互间的关系.结果表明:14个小麦新品系产量比对照增产.小麦新品系的蛋白质和湿面筋含量较高;籽粒产量与蛋白质和湿面筋含量呈显著负相关,与稳定时间等面团流变学特性相关不显著,提高产量可能会使这些品质性状变劣,但产量与多数品质性状呈正相关或微弱的负相关.面团流变学特性和产量性状间无显著相关性,较易同步改良.以千粒质量为切入点,同时协调产量各因素间的关系,有可能在优质和高产上找到平衡点.     

新疆春小麦品种农艺性状的遗传变异和相关性分析

为了探究新疆春小麦育成品种的遗传基础,对已被新疆维吾尔自治区审定的24个春小麦品种的主要农艺性状进行了遗传变异和相关性分析.结果表明:供试材料农艺性状的变异系数取值介于5.01%～28.95%之间,多样性指数集中在0.80以上;与产量构成因素有关的某些穗部性状(主穗粒数、主穗粒重、株粒重)间存在极显著的正相关性,株高同这些穗部性状间的正相关性也分别达到了极显著和显著水平.     

不同复合肥对中麦895小麦产量及品质的效应

2014—2015在陕西三原县安乐镇西毛村试验基地进行了不同肥料处理对中麦895小麦产量及品质的影响研究.试验结果表明,使用不同复合肥较常规施肥处理产量显著提高,增产10.5%～13.4%,以中化复合肥处理增产幅度最大,达13.4%.使用复合肥可显著提高小麦个体质量,其中单株分蘖数和次生根数分别较对照提高1.7%～15.4%和11.5%～17.9%;成穗率和成穗数分别较对照提高7.9%～11.9%和11.4%～16.7%;但对穗粒数、千粒重、穗长、小穗数和不孕小穗数效应不显著.施用复合肥可显著提高小麦籽粒稳定时间、沉降值、容重、拉伸面积和最大拉伸阻力,依次较对照增加15.6%～19.4%、3.1%～4.6%、0.6%～1.1%、2.1%～4.2%和0.5%～0.8%,但对籽粒蛋白质含量、湿面筋含量、硬度和吸水率的影响不明显.     

荞麦主要农艺性状研究

对10个苦荞收集系的农艺性状进行了研究,结果发现:10个苦荞收集系中,除了TA4和TA14收集系的苦荞总分枝数与株粒数、主茎节数与株粒数呈负相关外,其余收集系的苦荞株高与株粒数、总分枝数与株粒数、主茎节数与株粒数都呈正相关。并且10个苦荞收集系中的TA8与TA15、TA15与TA4收集系的千粒重之间差异不显著,其余收集系的千粒重之间都具有显著差异性。     

不同调节剂对小麦节间长度和产量的影响

选用多效唑、麦巨金、矮壮素3种生长调节剂,进行单剂型1次喷施,研究其对小麦节间长度及产量的影响.试验结果表明,3种调节剂对基部第1节间生长的作用存在较大差异,以矮壮素和多效唑抑制作用最为显著,基1节长度比对照短20~22%,麦巨金处理基部第1节间与对照无显著差异.其对产量的效应也不同,麦巨金和多效唑有显著的增产效应,分别比对照增产7.8%和6.8%,矮壮素对产量的效应不明显.从产量构成因素看,处理后成穗数、穗粒数和千粒重均有一定程度提高,但差异不显著.     

夏芝麻产量稳定性的影响因素分析

采用Eberhart和RusseⅡ(1966)的分析模式评价了12个夏芝麻品种(系)产量等10个性状的稳定性,并按Spearman等级相关的方法研究了产量稳定性与其他性状稳定性间的相关关系.结果表明,大多数品种(系)产量等10个性状的平均表现与环境指数呈显著或极显著的线性关系;产量的稳定性与单株蒴数、单株粒重及株高的稳定性呈显著或极显著正相关.因此,单株蒴数、单株粒重和株高的稳定性可作为夏芝麻稳产性育种的间接依据.     

Western and Eastern culture differences in commercial field

The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity.     

风的曲线

Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose.     

团图为数的图中的闭团贯数

Given a graph G,a subgraph C is called a clique of G if C is a complete subgraph of G maximal under inclusion and |C|≥2. A clique-transversal set S of G is a set of vertices of G such that S meets all cliques of G. The clique-transversal number, denoted as TC (G), is the minimum cardinality of a clique-transversal set in G. The clique-graph of G, denoted as K (G), is the graph obtained by taking the cliques of G as vertices, and two vertices are adjacent if and only if the corresponding cliques in G have nonempty intersection. Let F be a class of graphs G such that F={G|K(G) is a tree}. In this paper the graphs in F having independent clique-transversal sets are shown and thus TC (G)/|G|≤1/2 for all G ∈ F.     

汉字倒说

汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

Social and Cultural Influence on Word Meaning

Different nations have different social cultures, and the social culture of every nation is developing with the development of the nation, language is greatly influenced by social culture, which enables language to possess national and historical characteristics. Word is the smallest, independent, meaningful linguistic unit of language. It can well reflect the national and historical characteristics. From synchronic aspect, the social and cultural influence on word meaning is mainly embodied in conceptual and associative meanings of word. The incorrespondence of word meaning is a phenomenon that exists in both conceptual and associative meanings of word among different languages. From diachronic aspect, the development of social culture causes some changes of word meaning to some extent. Therefore, social culture plays a key role in vocabulary learning and mastery of a language.     

钱生钱!

我们绝大部分人都同意一件事情——我们喜欢金钱。但是你对金钱的喜欢之情足够到让你创立一份事业么?.财富通常被人忽视,主要在于人们不能真正了     

只要努力,不要后悔

There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.     

Inequalities for inscribed simplexes

The problem on the geometrc inequalities involving an n-dimensional simplex and its inscribed simplex is studied. Aninequality is established, which reveals that the difference between the squared circumradius of the n-dimensional simplex andthe squared distance between its circumcenter and barycenter times the squared circumradius of its inscribed simplex is not lessthan the 2(n-1)th power of n times its squared inradius, and is equal to when the simplex is regular and its inscribed siplex is atangent point one. Deduction from this inequality reaches a generalization of n-dimensional Euler inequality indicating that thecircumradius of the simplex is not less than the n-fold inradius. Another inequality is derived to present the relationship betweenthe circumradius of the n-dimensional simplex and the circumradius and inradius of its pedal simplex.