雜交不結實性 的英文怎麼說

中文拼音 [zájiāobùjiēshíxìng]
雜交不結實性 英文
cross-infertility
  • 雜 : Ⅰ形容詞（多種多樣的; 混雜的） miscellaneous; varied; sundry; mixed Ⅱ動詞（混合在一起; 攙雜） mix; blend; mingle
  • 交 : Ⅰ動詞1 （把事物轉移給有關方面） hand over; give up; deliver 2 （到某一時辰或季節） reach （a cert...
  • 不 : 名詞[書面語] （剁物所用的木墩） a block of wood
  • 結 : 結動詞（長出果實或種子） bear （fruit）; form （seed）
  • 實 : Ⅰ形容詞1 （內部完全填滿 沒有空隙） solid 2 （真實; 實在） true; real; honest Ⅱ名詞1 （實際; 事實...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 雜交 : [生物學] hybridize; cross; hybridization; cross breeding
  • 結實 : bear fruit; seed; fructify; fruit; fructification
  1. Abstract : the main characters and seed set of bc1 ， bc2 ， bc1f2 from ms line back - crossing with the pollen of hybrid rice were studied. the appearance of a large number of self fertile plants in ms line was analyzed. the effect of introgression of restoring genes on ms line purity and hybrid yield in indica and japonica rice was discussed. it was pointed out that “ iso - cytoplasm restorer line ” was seriously reducing the purity of ms line and that hybrid rice was unsuitable for isolation zone in the seed production fields

    文摘:研究了雜交稻花粉對母本不育系回交後代群體bc1 、 bc2 、 bc1f2的主要農藝性狀和育性表現，分析了不育系中出現大量自交結實株的原因，討論了恢復基因滲入對秈、粳不育系純度和雜交稻產量的影響，指出「同質恢」對降低不育系純度的嚴重性和雜交稻作制種田隔離區的不合理性。
  2. It was found that there were changes to some extent in the main characters of the days from seeding to initial heading, plant height and seed setting rate when the seeds of the tested hybrid rice combinations and their parents were sowed at different time in hainan for the seed purity identification, and the changing extent was different between some hybrids and their parents, which would affect the accuracy of purity identification

    摘要通過比較不同播種時期雜交水稻種子樣品在海南種植鑒定的農藝性狀表現，發現播始歷期、株高、結實率等主要性狀均表現出不同程度的變化，且部分組合與其親本的變化幅度不同，從而影響鑒定的準確性。
  3. In this paper, the pce principle, method and technical achievement of traffic engineering in domestic and overseas from 1940 to 1993 are analyzed, compared and evaluated. moreover, the use condition and limitation of the studying achievement are elaborated. based on it, in view of the complexity of the vehicle kinds and mixed traffic in domestic highway traffic, the physics method on influence space of vehicle is put forward according to the achievement of studying the road capacity and the mass traffic observation data of 177 section of highway

    本文首先對1940到1993年以來，國內外在交通工程研究中涉及到的車輛當量換算系數計算的原理、方法和技術成果進行了分析、比較和評價，闡述了這些研究結果的使用條件和局限性。在此基礎上，鑒於我國公路交通中車種多，車型復雜以及混合交通等的特點，通過對我們以前研究通行能力積累的成果和實地177個不同路段所採集到的大量交通觀測數據的分析和研究，利用數理統計和隨機場理論，提出了一種汽車道路作用空間的物理分析方法來研究車輛當量換算問題。
  4. The self - weight of soil is an important factor affecting consolidation, and once it is taken into consideration, the consolidation becomes quicker and final settlement becomes larger. rheological property of soft soil contributes to delaying consolidation. the influences such as nonlinear variations of compressibility and permeability, rheological and layered properties of soil, self - weight and time - dependent loading are interacted each other and very complicated, and only they are all taken into consideration, can the consolidation behavior of soft soils be actually revealed

    研究表明：大、小應變固結理論的差異隨土壓縮性或荷載的增大而越趨明顯；土體自重是影響固結的一個重要因素，考慮自重要比不考慮自重固結快、最終沉降大；土的流變性增大將最終遲滯軟土地基的固結；土的壓縮性和滲透性的非線性變化、土的流變性、成層性、自重及變荷載等因素對固結的影響相互交織，錯綜復雜，在固結分析中對之綜合加以考慮，才能真實反映軟土的固結性狀。
  5. The research for key techniques of turbo codes is processed. it includes, ? the design of optimal component codes and the performance of asymmetric turbo codes are analyzed ; ? a search algorithm for short random interleaver based on the distance spectrum and ids criteria is carried out and simplified ; ? random puncturing method to improve the weight distribution of turbo codes with some special code rates is analyzed and simulated. ? the effect of different schemes of trellis termination to the performance of turbo codes is analyzed ; ? a new low complexity decoder structure is provided ; 5

    對turbo碼的部分關鍵問題進行分析和改進，主要包括： ?分析了最優分量碼的設計和非對稱turbo碼的性能； ?設計了基於距離譜和ids的短隨機交織器搜索演算法並進行了簡化； ?提出了採用隨機刪余方式改善特定高碼率turbo碼重量分佈特性的方法； ?分析了不同編碼器狀態歸零方案對turbo碼性能的影響； ?提出了一種降低實現復雜性的turbo迭代譯碼器結構。
  6. In febrary, 2006, china issued nation long - term science and technology development plan which put the intelligent traffic manage systems as an advantage field including traffic information share and urban traffic management. urban traffic information extraction is the fundament of its and traffic information share. with social development, urban traffic constitute was changed and show the complexity, meanwhile, different complexity appear in different areas

    首先介紹論文選題背景及意義，在提出城市道路交通信息提取框架的基礎上，結合我國城市交通實證數據，分析城市道路交通流信息的復雜特徵，並對比研究不同預測方法的適應性，建立考慮復雜性特徵的交通預測知識模型;對城市道路交通狀態劃分進行分析並做探討性研究;提出城市道路交通信息提取的系統集成關鍵技術;最後，從三個方面提出交通信息共享機制。
  7. However, the objective social reality is that more and more children have to live in single - parent families, which is fragmentary both in structure and function. as a result, they can only get woeful familial education. lt will be a too enormous and complex topic to be analyzed in details if we have to set out all the " marks " in this " fragmentary environment ", so this thesis will focus on the psychological characterstics of the children in single - parent family to find out and analyze the features of their individuality development and socialization course. there will be five chapters as a whole : chapter one : to introduce the purpose, object and researching method of this thesis briefly defm single - parent family and present the development situation single - parent family

    然而客觀社會現實是：越來越多的孩子不得不被動地生活在單親家庭這種結構與功能都殘缺不全的家庭中。他（她）們所能享受到的家庭教育不能不說也是充滿遺憾的。要詳盡展示這種「殘缺境況」在成長過程中留下的印記，是一項龐大而復雜的工作，也是個人所不能力及的，本文選擇單親子女在人際交往-互動中的行為、態度和心理特徵這一側面，作為一個窗口，以此透視他（她）們在人格心理成長、個性發展和社會化進程中的一些現象和特點，並加以分析，探討因應對策。
  8. In my opinion, although the institutions to advance the development of agriculture are complex and diverse, the core function of the isap is to provide a permanent and steady incentive for the development of agriculture park this core function is realized by sub degree function which conclude reducing the transaction cost, decreasing the indeterminacy of the innovation, changing the external effect into internal effect, creating cooperation condition and etc. fifthly, with the guidance of efficiency theory, analyzes the efficiency of the isap

    第四，以新制度經濟學制度功能的理論，研究了農業園區制度結構的功能。雖然促進農業園區發展的各種制度安排復雜多樣，作用各異，但是其核心功能在於對農業園區的發展提供持續、穩定的激勵。農業園區制度結構這一核心功能是通過次浙江大學博士學位論文現代化進程中農業園區制度結構的研究一一以浙江省農業園區為例級功能即降低交易成本、減少創新的不確定性和外部性內在化以及為合作創造條件等功能來實現的。
  9. The hybrids were completely sterile while the pollen fertilities of parental species were normal

    雜種f _ 1完全不育，自交不結實，而親本育性和結實正常。
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