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The results suggested that, the introgression lines showed extensive changes, compared with the recipient R122, in biological traits, such as plant type, plant height, growth duration, tillering ability, spikelet setting density, grain shape, apiculus color, blast resistance, rice quality, restoring ability and storability characters.

对稳定的3个玉米DNA导入和4个稗草DNA导入研究表明,与受体R122相比,导入在株型、株高、生育期、分蘖力、着粒密度、粒形、稃尖颜色、稻瘟病抗性、稻米品质、恢复力和耐储藏性等生物学性状方面发生了广泛的变异。

Microscopic observation on anther development process of cytoplasmic male sterile line"1815A"showed that its anther development was inhibited at the stage of archesporial cell differentiation.

以1815A不育对应的保持1815B作对照,对不育进行细胞学观察,结果表明:随着花蕾的发育,败育的雄蕊一直处于孢原细胞时期,不能形成花粉囊并产生花粉母细胞,但雌蕊和维管束组织发育正常。

The representative families are Dryopteridaceae, Athyriaceae, Polypodiaceae, Thelypteridaceae, Selaginellaceae and Aspleniaceae. The main genera are Dryopteris, Selaginella, Asplenium, Arachniodes, Pteris, Allantodia and Plagiogyria. The top families' distribution types are cosmopolitan and pantropic ones, the main genera are pantropical ones, while species distribution type belong to the east Asia type and represents the feature of subtropics transition to warm temperated areatype. As for the order of closeness, the sequence of pteridophytes floristic relations between Songyang and the adjacent regions goes as Southwest China, South China, Central China, Japan, North China, Northwest China and Northeast China. The six upland pteridophytes next to Songyang can be put into the same natural flora because of its closest relationship. But compared with other 11 upland fern flora in China, fern in Songyang is not rich enough. There are 37 species endemic to China in Songyang.

结果表明,松阳蕨类植物共有38科72属161种7变种;优势科为鳞毛蕨科、蹄盖蕨科、水龙骨科、金星蕨科、卷柏科、铁角蕨科,优势属为鳞毛蕨属、卷柏属、铁角蕨属、复叶耳蕨属、凤尾蕨属、短肠蕨属、瘤足蕨属;科的分布以世界分布和泛热带分布为主,属的分布以泛热带分布为最多,种以东亚分布类型为主,特别是中国—日本分布类型最多,表现出亚热带向暖温带过渡的特点;本区与邻近地区蕨类植物区的密切程度由大到小依次为西南、华南、华中、日本、华北、西北、东北;与邻近的6个山地蕨类植物区的亲缘关密切,可以划为同一自然区;与国内11山地蕨类植物区相比,松阳的蕨类植物丰富程度不高;松阳拥有37种中国特有蕨类植物及一些珍稀蕨类植物,有较高的保护价值。

It is investigated that include autolytic activity in LB-3 culture medium,the relationship between cell dead and autolytic activity as well as the effect of temperature.

结果表明,乳酸杆菌LB-3的自溶酶在SDS-PAGE上呈现出两个区域,即乳酸杆菌LB-3的自溶酶至少由两种分子量不同的酶组成。

The single-celled phytoplankton included 116 inshore wide distribution species, 31 inshore warm-water species and 26 inshore temperate species, and the vascular plants were of 6 ecological groups, i.e., halophtes (24 species), hydrophtes (22 species), amphiphytes (35 species ), mesopllytes (103 species), zerophytes (6 species), and psammons (4 species). Halophtes, hydrophtes, and amphiphytes were the edificators and dominants, reflecting the azonal feature of the wetland vegetations. The vascular plants were divided into 5 life-forms, including 20 phaenerophytes, 4 chamaephytes, 54 hemicryptophytes, 48 geophytes and 68 therophytes, among which, hemicryptophytes and geophytes accounted for 52.58%, reflecting the relatively important function of cold and wet climate and local water-accumulated bottomland environment on the vascular flora formation.

中的单细胞浮游藻类包括近岸广布种116种、近岸暖水种31种、近岸温带种26种;维管束植物被划分为6大生态类群,包括盐生植物24种、水生植物22种、湿生植物35种、中生植物103种、旱生植物6种、沙生植物4种,保护区内湿地植被的建群种、优势种均为水生植物、湿生植物或盐生植物,反映了湿地植被的隐域性;维管束植物按照生活型划分,有20种高位芽植物、4种地上芽植物、54种地面芽植物、48种地下芽植物和68种1年生植物,其中地面芽植物、地下芽植物占区植物总种数的比例较高,占52.58%,反映冷湿气候和局部低洼积水环境对区的形成起较重要作用。

The liquid-liquid equilibrium binodal curves and the tie-line data of an epoxy cotton seed oil/acetic acid/water ternary system.

测定了环氧棉籽油-醋酸-水三元分别在30℃,40℃,50℃,60℃下的液-液平衡双结点曲线,以及在40℃,50℃,60℃下的液-液平衡线数据;分别应用物料衡算法和线中点轨迹法对实验数据进行了检验。

Seveteen fine biovotine female lines also had been bred out after 5~10 generations selecting directly to the bivoltine genetic resources, which included 8 Chinese female lines, 8 Japanese female lines and 2 hybrid female lines. These female lines could be reproduced easily by asexual reproductive way, their rate of asexual developed eggs were high with only female generations and economic characters were also stability.

采取直接利用无性繁殖性状较优良的二化性现行品种资源构建雌蚕无性繁殖的方法,经5~10代的无性繁殖继代选择,初步育成了17个雌蚕无性繁殖品,其中中品种8个,日品种7个,杂交种2个。

However ,there were 1 possitive homozygotes and 15 heterzygotes in the groupⅡ,whose per centage of possitive homozygotes is 14.2%.

和Ⅲ全部为阴性纯合体,Ⅱ检出阳性纯合体和杂合体分别为1头和15头,阳性率为14.2%。

GISH analysis showed Triticale have 2 items chromosomes presented yellow and others chromosomes presented chrysoidine, because yellow chromosomes combined the Thinopyrum intermedium DNA, others chromosomes dye by PI. 4. Analysis of resistance gene: CH-9916 is the hybrid progenies of Octoploid tritielytrigia TAI-7045 X common wheat "Jinmai33".

GISH分析结果表明,小偃麦衍生CH-9916的42条染色体中有2条外源染色体因结合有探针DNA而呈现出较强的黄色杂交信号,而没有结合上探针DNA的普通小麦染色体经过PI染色呈现出桔红色,初步推断小偃麦衍生CH-9916为一个&小麦一中间偃麦草&的代换

In this paper, we mainly study the qualities of the Killing forms of Lie triple systems, and give some results about the complexification o.

本篇论文主要研究了李三Killing型的一些性质,并给出了关于实李三的复化和复李三的实形式的一些结果。

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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面,更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。

You rap, you know we are not so good at rapping, huh?

你唱吧,你也知道我们并不那么擅长说唱,对吧?