雜交效應 的英文怎麼說

中文拼音 [zájiāoxiàoyīng]
雜交效應 英文
heterotic effect
  • 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...
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 應 : 應動詞1 （回答） answer; respond to; echo 2 （滿足要求） comply with; grant 3 （順應; 適應） suit...
  • 雜交 : [生物學] hybridize; cross; hybridization; cross breeding
  • 效應 : [物理學] effect; action; influence
  1. Directed on the present situation and existing problems in boosting beef cattle industry based on the yellow cattle improvement in china, the review indicated that several relationships, such as integration of individual households and large scale cattle farms, integration of yellow cattle improvement, crossbreeding, breed conservation and utilization, integration of high grain diet intensified fattening and low grain diet economic fattening, should be handled properly ; and the requirements of profitable cattle industry for increasing reproductive survive rate, using hybrid vigor and improving the weight gain, the main factors affecting economic return of large scale cattle farms and the technology level improvement in cattle industry were duiscussed as well

    本文就近來我國以黃牛改良為特點的肉牛業蓬勃發展現狀與存在問題，指出應處理好養牛經營形式千家萬戶與規模牛場相結合、黃牛肉用與肉役兼用相結合、黃牛改良選育與雜交、保種及利用相結合、高精料強度肥育與低精料適度育肥相結合等幾個問題；並就提高養牛經濟效益對提高繁殖成活率、充分利用雜種優勢、提高日增重的要求和影響規模牛場經濟效益的主要因素及如何提高養牛科技水平等問題提出探討。
  2. According to the complication of cyclic loading the aeolotropism and bauschinger effect resulted form plastic deformation were reflected by the kinematic hardening model, the transient stress - strain relation was described by jhansale model in the iterative formulas

    在迭代格式中，針對復雜的交變載荷，採用運動強化模型，反映了塑性變形引起的各向異性和包辛格效應，運用jhansale模型描述材料的瞬態應力應變關系。
  3. Quality of oil determined by the constituents and proportion of fatly acid components, and the understanding of heredity of fatty acid components is of importance to breeding for good quality soybean varieties

    摘要利用5個大豆品種配製20個雜交組合，採用廣義種子遺傳模型分析了大豆脂肪酸組分的胚、細胞質和母體植株等3套遺傳體系的基因主效應和基因型環境效應。
  4. Based on natural selection, it executes three same and simple genetic operators : selection, crossover and mutation. under the leading of fitness value, it makes an efficient searching in complex spaces until acquiring the best result

    它基於自然選擇的原理，通過循環執行相同的、簡單的選擇、雜交和變異三種遺傳操作，並在適應度函數值的引導下對復雜的解空間進行有效地搜索，直到獲得最優的解。
  5. Twenty f1 combinations crossed among 5 varieties and strains different in fiber properties according to complete diallel crossing design were used to evaluate the heterosis and gene action of boll weight and lint percentage in high quality fiber property varieties in upland cotton in 1998 1999 for two year successively at nanjing. it was indicated that there existed small interactions with the environmental factors without maternal effects and the additive gene effect was in chief, attaining to 51. 2 % and 65. 4 % respectively for boll weight and lint percentage. the dominant effect was also in higher rate, 32. 6 % and 16. 8 % respectively. the population mean heterosis of boll weight and lint percentage over the mid - parental mean were relatively prominent 13. 3 % and 3. 5 % respectively in extreme significance. however, boll weight showed no significantly surpassing parental f1 heterosis over the better parent based on population mean ( 2. 0 % ) ; while the lint percentage expressed significant negative heterosis value ( - 2. 1 % ). the gene actions were in conformity with the heterosis expression. it was shown clearly that the f1 combinations crossed between parents with similar performances had relatively high dominant effects and significant positive f1 surpassing parental heterosis ( f1 heterosis over the better parent ) ; while no f1 combination crossed between the parents with prominent mutual difference surpassed the higher parent in yield components, which indicated that among those parents with less difference and close relationships, there still existed sufficient genetic variation or certain mechanism for creating variation and achieving greater advances in breeding. correlation analyses also indicated that there still existed severely undesirable negative correlation between yield and fiber properties as well as the difficulties for their simultaneous improvements

    利用5個具有不同纖維品質性狀的品種（系）配製完全雙列雜交組合20個，通過親本和f1的2年隨機區組試驗發現產量性狀的鈴重和衣分與環境的互作效應小，不存在母體效應，並以加性遺傳效應為主，分別占表型方差的51 . 2 %和65 . 4 % ;顯性遺傳效應所佔的比率也較高，分別為32 . 6 %和16 . 8 % .鈴重和衣分的群體平均優勢較大，分別為13 . 3 %和3 . 5 % ，達到了極顯著;鈴重的超親優勢為2 . 0 % ，不顯著;衣分為顯著的負值（ - 2 . 1 % ） .遺傳分析與雜種優勢結果一致.具體表現在產量性狀上，親本相當配製的組合雜合顯性較高，其超親優勢正向顯著，而極值親本（差異較大）所配組合沒有超過高親的.這表明親本差異小、親源關系較近的親本中仍然存在足夠的遺傳變異或某種機制以創造變異使育種取得更大的進展.相關分析表明了仍然存在嚴重的品質與產量的負相關，遺傳改良的難度較大
  6. The genetic correlations of six agronomic characters in some indica - japonica crosses were analyzed using mixed - linear model method. the results indicated that there existed correlations to a certain degree among the measured traits. the phenotypic correlations of plant height with filled grain or seed setting were significant. panicle length with total grains or filled grain, total grains with filled grain or seed setting, and filled grain with seed setting were the same. for panicle length with plant height or seed setting, total grains with filled, and for filled grain with seed setting, genetic correlations were also significant. further analysis, the result showed that genetic correlations between the measured traits were mainly due to domimant effects. in addition, additive correlations were significant for grain weight with panicle length or total grains or filled grain, and for total grains with filled grain

    用混合線性模型方法對秈粳亞種間雜交組合農藝性狀的相關性進行了遺傳研究，結果表明：被測性狀之間大都存在一定程度的相關.其中，株高與實粒數、結實率，穗長與總粒數、實粒數，總粒數與實粒數和結實率，以及實粒數與結實率之間具有顯著的表型相關，總粒數與實粒數，實粒數與結實率，以及穗長與株高和結實率之間具有顯著的遺傳相關.進一步的分析表明，性狀之間的遺傳相關大多歸因於顯性效應，而粒重與穗長、總粒數和實粒數之間，以及總粒數與實粒數之間還具有極顯著的加性相關
  7. The results indicated that opposite maize had widespread heterosis like alternative maize ; yield advantage of opposite f1 ( alternative alternative ) was better than that of f1 ( opposite opposite ) and f1 ( alternative opposite or reverse ) ; general combining ability of yield characters was decreased by opposite characters transfer maize, but alternative maize with opposite genes has high general combining ability, so that on the opposite maize breeding, alternative inbred lines with different opposite genes can be parents for breeding hybrid lines ( alternative alternative ) and hybrid varieties with more seeds and high yield can be obtained

    結果表明：對生玉米同互生玉米一樣具有普遍的雜種優勢，在產量性狀上f1對生株優勢互互組合大於對對組合和對互（互對）組合；對生性狀的轉育對產量性狀的一般配合力有降低效應，而含有對生基因的互生玉米具有較高的一般配合力效應，因此，在對生玉米育種中可以利用含有不同對生基因的互生自交系作親本來組配雜交組合（互互） ，從而獲得較高的制種產量和高產的對生雜交種。
  8. Using the complex potential method in the plane theory of elasticity of an anisotropic body, the series solution of finite anisotropic thin plate containing an elliptical inclusion is proposed with the help of faber series. a hybrid element with an elliptical inclusion for anisotropic materials is obtained by using the hybrid variable principle, and the element efficiency is verified by numerical examples. the state of the damage is modeled by an elliptical soft inclusion, and using the point stress criterion based on characteristic curve and yamada - sun etc. criteria, the prediction of the strength of a composite laminate with damage is set up

    首先基於經典層板理論，將復合材料層板的彈性問題化歸為均勻各向異性板來求解；採用各向異性體平面彈性理論中的復勢方法，以faber級數為工具，給出了有限大含橢圓核各向異性板彈性問題的級數解形式；利用雜交變分原理，成功導出含橢圓核各向異性板雜交應力有限元，並用算例驗證了該單元的可行性和有效性；採用含剛度折減橢圓形彈性核的沖擊損傷模型，引入基於特徵曲線和yamada - sun破壞準則的點應力判據，建立了含損傷復合材料層板剩餘強度的分析方法；通過數值計算詳細討論了各種幾何參數對損傷層板應力分佈、剩餘強度的影響，得到了一系列對工程應用具有實用價值的結論。
  9. To device a primer pairs and amplify the full length pstvd by rt - pcr, the positive rna extraction from tuber sample was used as template. the product of rt - pcr was purified and connected to the plasmid pmd 18 - t vector

    Cdna核酸斑點雜交反應（ nash ）檢測pstvd方法準確、靈敏度高，一次檢測樣品數量多，且對于異地樣品檢測非常方便，是以往其它檢測方法的有效補充。
  10. The numerical results show mat the fem models applied in this paper are correct, and the hybrid element method is effective in approving calculation efficiency

    雜交元計算結果表明對于求解應力奇異性問題，構造合適的雜交單元可以有效的提高計算效率。
  11. The results showed that the compatibility indexes were obviously higher when the male sterile lines were used as the female parent than when their respective maintainer counterparts were used as the female parent, indicating the male sterile cytoplasmic effects on interspecific cross incompatibilities in cruciferae

    結果表明：三種類型的不育系均有一致的趨向，即用不育系和保持系與同一親本雜交的親和指數，不育系作母本的明顯高於以保持系作母本的組合，表明十字花科種間雜交親和性具有雄性不育細胞質遺傳效應。
  12. Terrestrial plants are classified into three major photosynthetic types, namely, c3, c4 and crassulacean acid metabolism ( cam ) plants, according to the mechanism of their photosynthetic carbon assimilation. c4 plants have co2 concentrating mechanism and higher photosynthetic efficiency than c3 plants, especially under high light intensity, high temperature, high oxygen partial pressure and drought conditions

    本研究利用c _ 3植物、 c _ 4植物、旱稻與稗草等的雜交後代的材料，進行光合速率的測定，進一步分析植株在光能吸收傳遞、氣孔調節、羧化反應等生理特性，研究高光效的生理機制。
  13. Taking the bending stiffness, cable sag and cable inclination into consideration, the space vibration control of the cables using the visco - elastic dampers in cable - stayed bridges is investigated by joining the center difference method and the state space strategy. both the maximum modal damping ration and the optimal damper size are obtained, then the practical suggestions are proposed for the design of the dampers. the space nonlinear vibration equations of the cable - damper system are derived, and a new hybrid method for solving the cable - damper system is presented by combing the newmark method and pseudo - force technology

    綜合考慮了拉索抗彎剛度、垂度的影響，研究了粘彈性阻尼器對斜拉橋拉索的空間振動控制，聯合中心差分方法及狀態空間法，得出了拉索麵內、外振動各階模態可能達到的最大阻尼比及相應的最優阻尼器系數，並對斜拉橋拉索的阻尼器設計提出了參考建議：考慮拉索抗彎剛度、垂度及幾何非線性，導出了索-阻尼器系統的空間振動非線性方程組，結合newmark方法及偽力（ pseudo - force ）方法，創新地提出了求解非線性方程組的雜交方法，根據拉索-阻尼器系統的阻尼特性，在各種荷載作用下，對索-阻尼器系統的非線性瞬態振動響應進行了研究，從系統響應的角度更加直接地驗證了阻尼器的控制效果。
  14. The yeast two - hybrid system is an effective method for the study of protein - protein interaction in recent years. it is widely used in the study of life science because it provides a genetic means of identifying proteins that physically interact in vivo

    酵母雙雜交系統是近年來發展起來的一種研究蛋白質?蛋白質相互作用的有效方法，由於它檢測的是一種體內的相互作用，自這一系統建立以來，就被廣泛地應用於生命研究的各個領域。
  15. Experimental research shows that control of the water solubility of phosphate fertilizer by slow - releasing technology can keep certain amount of citrate acid soluble phosphate fertilizer, and will be effective and promising in the research and development of slow ( control ) - releasing exclusive fertilizer for super hybrid rice

    試驗研究表明採用肥料自緩釋技術控制磷肥的水溶率，不僅可以獲得保留一定量的枸溶性磷的肥料，而且應用於超級雜交稻緩釋（控釋）專用復合肥料的研究與開發，具有明顯效果，應用前景廣闊。
  16. The results from rt - pcr of the three differentially expressed genes were significantly higher than those of control group ( p < 0. 01 ) in summary, with rapidness and effectiveness of ssh technique, the screened differentially expressed genes including the known and three novel ones in this study might play an important role in the pathogenesis of rat brain injury induced by repeated + gz exposures

    選取的3個差異表達基因用半定量rl 、 pcr檢定結果表明，各基因在對照組和暴露組中的表達水平有明顯差異（ p < 0 . 01 ） 。上述研究結果提示，應用抑制性消減雜交這一篩選差異表達基因的快速有效工具所發現的3個新的cdna ，可能在+ gz腦損傷的病理過程中起重要作用。
  17. Mutation effect of n ion beam on germinating watermelon seeds and pollen

    低劑量輻射對小麥與窄穎賴草屬間雜交的促進與損傷雙重效應
  18. ( 3 ) an adaptive crossover operator, an adaptive mutation operator and a multiple and variable elitist operator are proposed to enhance the reliability and efficiency of ga

    （ 3 ）提出了自適應雜交、自適應突變和多重動態優選等遺傳運算元，旨在提高ga的可靠性和效率。
  19. The third part studied ecological effect of combined pollution for hms in plearotus ostreatus, measured the lingth and anti - weed - moulds ability of hyphae, biomass of plearotus ostreatus, biovailability of hms, hms enrichment, the variety of hms toxicity and the transformation amd redistribution ability of hms. the ecological dffect of hms on plearotus ostreatus is reviewed. hms mentioned above were harmful to the growth and yield of pleurotus, ostreatus, but cd could enhance billogical efficiency

    第三部分：研究重金屬復合污染物對平菇生態效應的影響，分析了菌絲生長速度和抗雜性，平菇的生物量，重金屬離子的生物有效性，平菇對重金屬的吸收與富集，重金屬毒性的差異和重金屬離子的分配和遷移，綜合分析了重金屬的交互作用對平菇的生態效應。
  20. 6. the results of heterosis prediction based on qtl effects showed that heading date had negative general mid - parent

    群體估汁y qtl遺傳主效應和或q廠互作效應預測單交後代雜種優抖。
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