种性状
- 与 种性状 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The distribution of the qualitative characters The performance of the 39 chief qualitative characters were observed and recorded,according to the test method of morphological characters in the .The results of distribution proportion of each character in cultivars group showed that the distribution of 32 characters(number of ray flower rings,floret curliness,shape of leaf base,size of stipule and so on) were very asymmetrical with near or above 70%cultivars concentrated upon one or two performance, however,the distribution of the other 7 characters(floret type,surface color of outer floret,back color of outer floret,color of disc floret,claw in base of sinus between lateral lobes,stem erectness and stem color) in the cultivars group were relatively symmetrical.
质量性状分布参照《菊花DUS测试指南》的形态性状测试方法,观察记录大菊39个主要质量性状的表现,计算各性状的表现式样在品种群内的分布比例,结果显示舌状花的重瓣性、花瓣曲反状况、叶片基部性状、托叶大小等32个性状的表现式样在品种群内分布极不均匀,接近或超过70%的品种集中在性状的1种或2种表现式样中;而花瓣形状、外花瓣表面色、外花瓣背面色、花中心部颜色、叶裂刻基部有无突起、茎的曲直性和茎色等7个性状的表现式样在品种群内的分布则相对均匀。4。
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Social justifiability is established in humanitarism,calling for fair interests against social discrimination and reflecting a humanistic altruism.
尽管不同的社会、同一社会发展的不同阶段有着不同的标准,但是比较理想的人性化社会应当体现出两种性状:社会合理性与社会合情性。
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Then, the computer program CCP1 was edited to study synthetically the influence of 5 factors (i. e. CV value of seed, number of compartment, resident time distribution of massecuite in the compartments as well as vacuum, the height of massecuite) on CV value and MA value of products of multicompartment continuous crystallizer.
依据上述理论模型及其解法,本论文作者进一步编译了能综合考察晶种性状、分室数目、糖膏在各分室中的停留时间分布以及真空度、糖膏高度等五个因素对卧式多分室连续结晶设备产品CV值和MA值影响情况的计算机程度CCP1。
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After reviewing the previous dissertation on quantitative characteristic trait of recalcitrant seeds, three aspects of quantitative characteristic trait of seed recalcitrant were defined, which are interspecific aspect, intraspecific aspect and individual developmental aspect. And it was supposed that seed recalcitrance was a compound characteristic, with its core composed of desiccation tolerance, low-temperature tolerance and storage tolerance at least, and its concomitants composed of seed size, 1000-seed weight, moisture content at shedding, non-dormancy, systemic taxonomy, ecological and biochemical aspects. Because these core and concomitants are all gradual, transitional and quantitative, it was inferred that seed recalcitrance was a compound quantitative trait.
文章简要概述了从顽拗型种子到顽拗性种子这样一个对顽拗性种子认识提高的过程,在综述了前人关于顽拗性种子数量性状特征论述的基础上,把种子顽拗性的数量性状特征划分为种间、种内和个体发育三个层面,提出种子顽拗性是一种复合性状,其核心至少包括脱水耐性、低温耐性和贮藏耐性三方面的内容,其伴随性状包括种子尺度、千粒重、初始含水量、休眠特性、分类地位、地理分布和保护性物质含量等多方面的内容,而且这些核心内容和伴随性状的每一个方面都具有渐变的、过渡的、数量型的特征,从而阐明种子顽拗性是一种复合数量性状。
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The results above showed:(1) The cultivars of large-flowered chrysanthemum are widely distributed in Beijing area with plentiful floral types and floral colors;(2) The cultivars with the rare types and colors are urgent for protection;(3) Most of the quantitative characters obeys to the normal distribution,some important traits agreed with skewed distribution.The probability grading can assist quantitative character in establishing new grading standards;(4) Most of qualitative characters is asymmetrical in cultivars,which might be caused by unbalanced differentiation of characters or linkages coming from emphasis characters selection;(5) The floral characters are relatively stable and have comparably large influence on classification,the characters of stipule also have a certain degree of stability and can act as an reasonable supplement for cultivars classification,but the foliar characters have worse stability and can only be recognized as lower level criterion.(6) The genetic relationship among the Flat-petaled group,the Quilled-petal group and the Spoon-petaled group are closest,which followed by the Filiform-petal group because of long-term selection pressure for the specialization of the petal tip loved by most people.The Anemone-petal group has further genetic relationship with these four groups.(7) ISSR molecular marker detection indicates that the proportion of polymorphic loci of lardge-flowered chrysanthemum is higher,in which the Flat-petaled group has the highest genetic diversity level.
综合以上的研究结果表明:(1)北京地区现有大量大菊品种,且花型与花色较为丰富;(2)珍稀花型、花色品种亟需保护;(3)大部分数量性状是符合正态分布的,少数重点观赏性状迫于选择压力呈现偏态分布,概率分级法能够辅助大菊的数量性状建立新的分级标准;(4)大部分质量性状在品种群内的分布是不均匀的,可能是由菊花性状遗传分化的不均衡性或受到选育重点性状的连锁作用而造成的;(5)大菊花部性状相对稳定,对品种分类影响较大,其托叶部分也具有一定程度的稳定性,可以作为品种分类的合理补充,而叶部性状稳定性较差,在品种分类中应作为更次一级的分类依据;(6)平瓣类、管瓣类和匙瓣类的亲缘关系最近,畸瓣类品种花瓣先端特化受到人们的喜爱,长期的选择压力使其区别于3种基本瓣型,而这四种瓣型与桂瓣类在亲缘关系上较远;(7)ISSR分子标记检测表明:大菊品种多态性位点百分率较高,平瓣类品种的遗传分化最为丰富。
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The main results were showed as follows:Through screen and identification of morphology in M_2 and M_3, respectively, the mutants with mutative traits of plant were found. In which, 11 mutations were leaf variations, including light-green leaf, deep-green leaf, durative yellowish leaf, temporary yellowish leaf, inlaid yellowish leaf, wrinkly leaf, smooth-edged curly leaf, splitting-shaped curly leaf, peduncular-shaped leaf, round leaf and larger leaf, 12 were mutations on plant type, including excessive branches, lacking branches, highness, dwarf-like, erect posture, reclinate posture, strong stalk, slender stalk, tufty branches, wrinkled plant, purple stalk and hair-covered plant, 14 were flower variations, including dense flowers, light-yellow petals, white petals, white-mosaic petals, wrinkled petales, back-rolled petals, narrow petals, larger petals, smaller petals, apetalous flowers, variable-numbered petals, fertile pistil protraction, sterile pistil protraction and multi-anther, and 5 were physiologic mutants, including genic male sterile, cytoplasmic male sterile, bud-dead, and early and later bloom.
主要结果如下:通过田间M_2筛选和M_3重复鉴定,在田间农艺性状方面共获得浅绿叶色、深绿叶色、转绿黄化叶、持续黄化叶、边缘黄化叶、皱缩叶、光叶型卷叶、裂叶型卷叶、薹叶形叶、宽圆叶和大叶等11种不同的叶部性状突变体;同时还筛选到多分枝、少分枝、高杆、矮杆、株型紧凑、株型松散、粗茎、细茎、丛生分枝、整株皱缩、紫茎、整株被毛等12种植株性状突变体,密花、浅色花瓣、白色花瓣、白斑花瓣、皱瓣、卷瓣、窄瓣、大瓣、小瓣、无瓣、花瓣数目不定、可育型柱头外露、不育型柱头外露和多雄蕊等14种花器性状突变体,以及细胞核雄性不育、细胞质雄性不育、死蕾、早花和迟花等5种生理性状突变体。
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Based upon the ecoanatomical method, leaf anatomical characters of eleven populations of six evergreen species (Cyclobalanopsis glauca, C. myrsinaefolia, C. gracilis, Castanopsis sclerophylla, C. eyrei and Lithocarpus glaber) from the eastern subtropical area of China were analyzed and compared with SPSS, DCA and TWINSPAN. The results are: 1. Although the leaf structures of the eleven populations still belong to the mesophyll type, they all express the trend of xerophilization. 2. There are some differences in leaf anatomical characters among populations, species and genera, which occur as the results of their adaptation to different habitats. 3. Different leaf anatomical characters have different variations among populations, species and genera, of which leaf thickness and palisade tissue thickness (considered as ecological adaptation characters) have greater variation than sponge tissue thickness, lower cuticle thickness and lower epidermis thickness (as systematical evolution characters). 4. The leaves of C. sclerophylla and C. glauca with thicker lamina, palisade tissue and cuticle (a multilayered upper epidermis in C. sclerophylla) are thought to better adapt to their dry habitat. The leaves of C. eyrei with thicker sponge tissue, although characterized by a multlayered upper epidermis, adapt to their humid and warm habitat. The leaves of C. myrsinaefolia and C. gracilis characterized by a thinner lamina, a less palisade tissue and a moderate cuticle thickness adapt to the humid and cool habitat in a middle mountain.
选取亚热带东部替代分布明显的壳斗科6种常绿树种(青冈、小叶青冈、细叶青冈、苦槠、甜槠和石栎)的11个种群叶片进行生态解剖,并用SPSS, DCA和TWINSPAN比较分析,结果表明:①尽管6种11个种群叶的结构仍属中生叶型,但有着不同程度的趋旱适应;②叶的解剖性状在属间、种间和种群间均存在着不同程度的差异,这是它们适应各自生境的结果,青冈和石栎的种内差异较大,反映出它们对环境变化有较强响应能力;③叶片的不同解剖性状在属、种类和种群间的变化并不同步,其中叶片和栅栏组织厚度等性状差异突出,反映它们更易受环境的饰变,是生态适应性状,而海绵组织、下角质膜,特别是下表皮厚度等性状差异较小,显示出这些性状的稳定性,可以认为是系统演化性状;④苦槠、青冈具有较厚的叶片、栅栏组织、角质膜和发达输导和机械组织,苦槠还具有复表皮,表现出对旱化生境的适应;甜槠尽管具有复表皮和较厚的叶片,但这是海绵组织增厚的结果,是对中生生境的适应;小叶青冈和细叶青冈具有较薄的叶片和栅栏组织、角质膜厚度居中等特点,可能是对中山凉湿生境的适应。
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Maybe this is because that the same QTL is polygenetic and different QTL controlled relationship traits are arrayed together.
SSC6和7上,有的标记区间也同时有几种性状的QTL。这种现象的产生,可能是由于一因多效,也可能是控制相关性状的多个QTL相邻排列成簇,形成控制重要经济性状的基因集团。
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"Qù le"in spoken Chinese is a mark of quality degree that can be treated as an adverb of degree .
汉语普通话口语里的&去了&,是一种性状程度标记,可以看作程度副词。
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The egg production of a week et al was also analyzed . 18 pairs of microsatellite primers were screened from chromosome 1 and chromosome Z, the primers were designed to allow optimal performance of the markers, in sets containing multiple microsatellites, on ABI3100 sequencers. We determined there were correlation among 13 microsatellite markers and 19 characters in 25 egg traits through least square means. At the same time, we calculated correlation among characters of egg traits in silkies.
从鸡1号染色体和Z染色体上筛选出18对微卫星标记,进行多重PCR扩增,并对引物组合的反应体系进行优化,在F1群体中检测到13个标记位点分别与25种性状中的19种性状有不同程度的相关,并进行同一标记不同基因型间的多重比较,同时还计算了产蛋性状间的表型相关。
- 推荐网络例句
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In the United States, chronic alcoholism and hepatitis C are the most common ones.
在美国,慢性酒精中毒,肝炎是最常见的。
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If you have any questions, you can contact me anytime.
如果有任何问题,你可以随时联系我。
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Very pretty, but the airport looks more fascinating The other party wisecracked.
很漂亮,不过停机坪更迷人。那人俏皮地答道。