查询词典 interspecific

Cytological studies show that the incompatibility of interspecific hybridization of Abies is mainly due to the abort of embryos or ovules.

布朗决定取消11月举行全国大选的计划，9。杂种胚阶段胚或胚珠的败育是冷杉种间杂交不成功的主要原因。

To assess the interspecific relationships in China of celery(Apium gra-veolens L.).

为了了解分析中国芹菜Apium gra-veolens L。

By separation and combination analyses of nuclear rDNA ITS and the cpDNA (matK gene, rpl16 intron and atpB-rbcL spacer) sequences, the interspecific relationships were discussed, and the classification review and biogeographic analysis were done for all species bearing raceme or spike of one to many umbels with prophylla at base.

运用nrDNA ITS及cpDNA(matK、rpl16、atpB-rbcL)序列的单独和联合分析探讨了这些类群的种间关系，并对世界菝葜属中具有一至多个伞形花序排列成圆锥花序或穗状花序、花序梗上有关节的所有种进行了分类学研究及生物地理学研究。

In recent years it has been exploited to be a famous scenic spot. To avoid vegetation degradation resulting from human activities and strengthen plant protection, Carpinus turczaninowii communities in great valley were selected as our research subject. The species diversity, interspecific association and correlation, niche breadth and niche overlap in these communities were studied using quantitative methods.

为了加强对该地区植被的保护，避免因人为干扰而导致的植被破坏和退化，本文以太行山南段的小叶鹅耳枥群落为研究对象，在分析了群落主要特征的基础上，应用数量生态学方法，分别从群落的物种多样性、优势种群的种间关系和生态位三个方面，客观定量地分析了植物群落的生态关系。

This paper researched the effect of interspecific interaction of faba bean, soybean and wheat intercropping with maize on crop growth and nutrition absorb.

论文研究了蚕豆、大豆和小麦在两个氮水平下与玉米间作对作物生长和养分吸收的影响。

On the other side, the relations among community classification, structure, diversity and distribution pattern were also investigated through the study of species composition, diversity and interspecific relation of Medicago falcata in Inner Mongolia.

另一方面，本文又以松嫩平原天然草地中的五脉山黎豆、多茎野豌豆、花苜蓿以及内蒙古的黄花苜蓿为研究对象，从植物群落的物种组成、多样性、种间关联等几方面探讨了我国天然草地中豆科牧草的群落类型、结构、群落多样性与分布格局之间的关系。

Flooding,as a kind of disturbance events,occurred with higher and higherfrequency over the world.To investigate the effects of flooding disturbance ongrassland vegetation and the soil,a comparatively thorough study was conducted onAneurolepidium chinense grassland in Songnen plain,Northeast China.The studysite was located in Sanjiadian National Rangeland in the territory of Da'an city,Jilirprovince,which was partly flooded in 1998.On the study site,Several transectssubjected to different flooding durations and intensities were designed for thecomparative study among them on such aspects as vegetation characteristics,seedbanks,vegetative propagation of rhizomatous plants,distribution patterns ofpopulations,interspecific relations,and physio-chemical properties of soil.Theresults were as follows:(1)Of the functional group composition of the vegetation,with the elongation of the flooding duration or the increase of flooding severity,theratio of hygric and hygro-mesic plants increase,while that of mesic and mesoxericplants decrease,of Therophytes changed unimodally,of Geophytes increased,whileof Hemicryptophytes decreased.

为弄清草地植被及其土壤环境对水淹干扰的响应，在松嫩平原羊草草地1998年部分遭受水淹的吉林省大安市三家甸子草场内设置了经历不同水淹干扰持续时间和不同水淹强度的样带，并在这些样带之间从植被特征、种子库特征、根茎植物的营养繁殖性能、种群分布格局、种间关系及土壤的理化性质等多个方面展开对比研究，主要结果如下：(1)在植被的功能群组成中，随干扰强度的增加和水淹干扰持续时间的延长，湿生、湿中生类植物功能群的优势度比例基本上是逐渐增加的，中生、中旱生类植物功能群的优势度比例则逐渐减小，而一年生植物的优势度比例呈单峰型变化，地下芽植物比例增加，地面芽植物比例减小。

With higher content of β-carotene. The length and width of perianth segment(inner 2 ring) were osculant, the former showed matroclinous inheritance, the latter showed patroclinal inheritance, so Liriodendron interspecific hybrids with bigger perianth segment could be selected by Liriodendron chinense?

杂交鹅掌楸内两轮花被片长度和宽度为双亲中间型，分别偏向母本和父本，用内两轮花被片较宽的鹅掌楸作母本，内两轮花被片较长的北美鹅掌楸作父本，有望选育出大花的杂交鹅掌楸个体。

Lycopene was osculant,β-carotene showed matroclinous and transgressive inheritance, so Liriodendron interspecific hybrids with fresher perianth segment could be selected by Liriodendron chinense ?

胡萝卜素表现为偏母超亲遗传，选用β-胡萝卜素含量高的鹅掌楸个体作母本进行杂交，有望选育出花色橙黄的杂交鹅掌楸个体。

The analysis of these data shows that in the process of evolution the X chromosomes are as conservative as those in other mammals and the intraspecific and interspecific changes of autosomes follow such a rule:the increase of one chromosome in 2n number is always accompanied by the increase of two acrocentrics and the decrease of one metacentric or submetacentric,and vice versa.

对这些材料所进行的分析表明，鹿属动物在进化过程中，X染色体是很保守的，而常染色体的变化，无论是种间还是种内，全是2n数每增加1条，中部或亚中部着丝点染色体数就减少1条，而端着丝点染色体数就增加2条，反之亦然。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。