雜交優勢 的英文怎麼說

中文拼音 [zájiāoyōushì]
雜交優勢 英文
heterosis
  • 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...
  • 勢 : 名詞1 （勢力） power; force; influence 2 （一切事物力量表現出來的趨向） momentum; tendency 3 （自...
  • 雜交 : [生物學] hybridize; cross; hybridization; cross breeding
  1. Overdominance or heterosis for catkin length in interspecific crosses has been reported.

    栗樹種間雜交在荑花序長度上所表現的超親（或雜種優勢）已報道了。
  2. Overdominance or heterosis for catkin length in interspecific crosses has been reported

    栗樹種間雜交在?荑花序長度上所表現的超親（或雜種優勢）已報道了。
  3. They make an ideal crossing breed. put to a white breed, the offspring will be white with the advantage of hybrid vigour

    格洛斯特郡斑點豬是理想的雜交豬種。它與白種豬雜交，其後代將會是白色的，雜交優勢明顯。
  4. The self - incompatibility characteristics and heterosis breeding on rape

    油菜的自交不親和性和雜種優勢育種
  5. Mass produce those combinations between selfed lines that exhibit a great deal of hybrid vigor.

    在自交系之間選雜交優勢很大的那些組合進行大量生產。
  6. 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。
  7. Research on crossed progeny with mongolian sheep

    蒙古羊雜交後代雜種優勢的研究
  8. 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
  9. 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。
  10. Reviews on heterotic group partition of maize inbred lines

    玉米自交系雜種優勢群劃分的研究綜述
  11. Heterosis of several hybrid wheat combinations from five stripe rust - resistant wheat parents

    幾個抗條銹病小麥品種雜交組合的雜種優勢研究
  12. In the study, six different ecotype varieties of common wheat and f1 derived from 6 6 complete diallel crossing system were selected for the research on the characteristics and heterosis of spike differentiation. the results showed that heterosis existed in most key spike differentiation phases and varied with different ecotype varieties. heterosis of spike differentiation was positively correlated with heterosis of hybrid yield. finally, the author concluded that it was the best way to produce strong heterosis combination by selecting the mode of “ spring wheat winter wheat ” in huanghuai winter wheat region

    對6個不同生態類型小麥品種及其完全雙列雜交f1幼穗分化特點和穗分化雜種優勢的研究表明，雜種幼穗分化各主要時期普遍存在雜種優勢；不同生態類型組配方式的雜種穗分化優勢不同；穗分化雜種優勢與產量雜種優勢具有一定相關關系；黃淮麥區雜交小麥最佳生態組配方式為春性品種冬性品種。
  13. On the hybridization dominance in ancient greek culture

    古希臘文化雜交優勢論
  14. For the reason of out - of - orderly traditional mode of production and mates, the community gene of white chest duck tends to be identical

    由於在民間延續傳統的生產方式，無序交配，導致群體基因趨同，不能產生雜交優勢。
  15. Correlation between genetic distance and yield heterosis of hybrid aromatic rice

    雜交香稻親本遺傳距離與產量雜種優勢的相關性研究
  16. Study on heterosis of cms - based hybrid cotton gossypium hirsutum l. with okra leaf indicators

    雞腳葉標記的三系雜交棉雜種優勢的表現
  17. Brassica crops occupy the largest cultivated areas and produce the highest yields among the vegetables and oil crops in our countryside. it is one of the most prevalent crops in the utilization of heterosis and have been regarded as model plants in the process of researches on their molecular mechanism of self - incompatibility and breeding and application of male sterility

    蕓薹屬植物（ brassica ）是我國栽培面積最大，產量最高的一類蔬菜與油料作物，在我國蔬菜和油料生產和供應中佔有極其重要的地位，蕓薹屬作物也是雜種優勢利用最為普遍的一類作物，其自交不親和性的分子機理和雄性不育系的選育及其應用基礎的研究深受人們重視。
  18. With respect to genetic similarity, genetic distance and cluster analysis among samples of f1 generation, it showed that the most genetic identity is between jfp and jmp, ( i = 0. 9934, dnei = 0. 0066 ), the next was between jp and jmp ( i = 0. 9873, dnei = 0. 0128 ), the third was jp and jfp, with i = 0. 9681, dnei = 0. 0325 ; the fourth was jp and cp, with i = 0. 9035, dnei = 0. 1015 ; the fifth was cp and jmp, with i = 0. 8862, dnei = 0. 1208, and the furthest was between cp and jfp, with i = 0. 8648, dnei = 0. 1452

    由此可以看出在此四組中，雜交組的遺傳變異明顯高於自交組的，雜種優勢已初步顯示出來。而在兩雜交組中，日雄中雌雜交組又優于日雌中雄組中自交組。群體間遺傳相似系數和遺傳距離及聚類分析結果表明：兩雜交組間的遺傳相似系數最大，遺傳距離最小，僅為0 . 0066 ，而中自交組群體與日雌中雄雜交組群體的遺傳距離最大為0 . 1452 ，兩自交組群體間的遺傳相似系數為0 . 9035 ，遺傳距離為0 . 1015 。
  19. Effects of opposite character on heterosis of yield characters and heredity of combining ability were studied by using inbred lines and hybrid combinations of opposite and altefive, which were bred through opposite gene transfer in maize

    摘要本文利用對生基因轉育獲得的對生與互生自交系及其雜交組合，研究了對生性狀對產量性狀雜種優勢和配合力的遺傳效應的影響。
  20. Formula for prediction of general heterosis and interaction heterosis of single - cross offspring based on qtl effects were deduced

    推導了基於qtl效應的單交後代普通雜種優勢和互作雜種優勢預測公式。
分享友人
分享到 Line

分享到臉書