parent population 中文意思是什麼

parent population 解釋
母體
  • parent : n. 1. 父親；母親。2. 〈pl. 〉雙親；祖先。3. （動、植物的）母體，親本。4. 根源，本源。5. 保護者。n. -hood 父母的身份。-ing 育兒；生育；像父母對待子女般的照顧。
  • population : n. 1. 人口；人口總數；全體居民；人口的聚居。2. 物的全體[總數]；【生物學】蟲口；種群（量）；群體；族，組，個數；【統計學】對象總體，全域。3. 【物理學】布居；密度。4. 〈罕用語〉殖民。
  1. Crossbreeding of chlamys farreri were performed using the parent scallops from the korea wild population ( k ), china cultured stock ( c ) and the survived individuals in epedimic waters in culture area of china ( cs ). four crosses, k k, k c, k cs and c c, were constructed. the index of growth performance of their progenies such as the length and width of the shell and the individual weight were measured for heterosis study

    用來自韓國野生的櫛孔扇貝和中國養殖的櫛孔扇貝以及發病區存活的個體作為親本，構建韓國野生韓國野生、韓國野生中國養殖、韓國野生中國養殖發病區存活個體以及中國養殖中國養殖共四個交配組合，通過對f1代個體殼寬、殼高和體重的測量比較不同群體的生長情況。
  2. 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
  3. Function to shuffle the parent population

    函數來隨機組合親本種群。
  4. Genetic linkage maps of f. chinensis have been constructed using " two - way pseudo - testcross " strategy with aflp markers. parents and fl progeny ( full sib family ) was used as segregating population. together 135 and 118 markers fitted to mendelian segregation ration for paternal and maternal parent was produced from 34 aflp primer combinations

    利用aflp分子標記結合擬測交策略，以中國對蝦的單對雜交親本及其f1代為作圖群體，應用mapmakerexp / 3 . 0軟體，構建了中國對蝦雌、雄的中等密度的遺傳連鎖圖譜。
  5. I should remind you that the parent population contains multiple references to parents based on their fitness

    我應該提醒您，基於親本的適合度，親本種群包含有對親本的多個引用。
  6. Also, the second parent used to be selected randomly, and i thought that was a fairly accurate representation of evolution, but i have changed that to select the second parent based on their fitness, by picking them out of the parent population and then inserting them back

    另外，以前第二個親本是隨機選擇出來的，而且我認為這樣是對演化的相當準確的描述，但是我改變了那種方法，通過將它們從親本種群中選擇出來然後再插入回去的方式，基於它們的適合度來選擇第二個親本。
  7. The population migration dwindles the scale of family and makes family structure incomplete. so the unattended children live in the single - parent or grandparent family, and their interaction with parents are almost diminished to none

    人口流動使農村家庭規模變小，結構趨于不完整，留守子女生活在單親或隔代的家庭中，與父母之間互動減少，交流幾乎等於零。
  8. Vega is a coevolutionary algorithm, which can make not only global search by vertical inheritance of evolutionary information between parent and child populations with genetic operators but also local search by horizontal propagation of evolutionary information in the same population with virus infection operators, so it can get the satisfied solution in less time than genetic algorithm ( ga )

    病毒進化遺傳演算法是一種協同進化演算法，既實現了遺傳操作在父子代群體間縱向繼承進化信息進行全局搜索的功能，也實現了病毒感染操作在同一代群體中橫向傳播進化信息進行局部搜索的功能，從而可以比遺傳演算法較快獲得問題的滿意解。
  9. The more fit a parent is, the more chances it will have to reproduce by being in the parent population multiple times

    親本越適合，在親本種群中出現的次數就會多，因而就會有更多機會繁殖下去。
  10. The information collected in population censusesby - censuses is vital to government planning and policy formulation, particularly in such fields as education, housing, transport, medical and social services. data on small areas form the basis of district development and service planning programmes of the government, while comprehensive information on population sub - groups, such as the elderly and single parent families, facilitates the planning of welfare policy and social service programmes

    普查搜集所得的資料，對政府在規劃和制訂政策尤為重要，特別是有關教育、房屋、交通、醫療和社會服務的政策。小區人口資料是政府制訂地區發展和服務計劃的基礎；而詳細人口分組資料例如獨居老人、單親家庭等，更可大大幫助政府策劃特定的福利政策和社會服務計劃。
  11. Is set if the last parent was just obtained from the parent population ; that s the only way to break out of the parent selection loop

    注意，如果最後一個親本恰好是自親本種群中獲得的，應該如何去設置
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