雜種一代 的英文怎麼說
中文拼音 [zázhǒngyīdài]
雜種一代
英文
first generation of hybrid-
This paper summarized the inheritance and variation of main biological and economic characters in rape progeny from hybridization and distant crossing, inquired into the selective mating of hybrid parent and the selection of hybrid progeny, analyzed the problems which had existed in rape distant crossing breeding, and put forward some ideas for accelerating the stability of characters in distant crossing progeny
概述了油菜品種間雜交後代及遠緣雜交後代主要生物學性狀和經濟性狀的遺傳變異現象;對雜交親本的選配及雜種後代的選擇進行了探討,分析了油菜遠緣雜交育種中存在的問題,就加速遠緣雜種後代的穩定提出了一些見解。If the characteristic is governed by simple mendelian genes, the typical monohybrid and dihybrid ratios become apparent in the f2 generation
如果其特徵取決于單一孟德爾基因,那麼典型的單基因雜種和和雙基因雜種的遺傳比率將在子二代呈現。Individuals crossing exclusively within the same population produce more progeny than those crossing in both directions and thereby use up some of their gametes for the production of inviable hybrids.
完全在同一種群內進行雜交的個體比以兩個方向進行雜交的個體繁殖後代要多,因此為了產生無生機的雜種,就要消耗掉一些配子。Usually the more unlike the parents are the more hybrid vigor is released, but the effect diminishes in subsequent generations as more recessive homozygotes reappear
通常,親本越不相似,產生的雜種優勢越強,但這種優勢使下一代的隱性純合子的出現機率更多。The hybrids and progeny of intervarietal crosses of p. graminis were tested on the parental hosts.
桿銹變種間雜交的一些雜種和後代在其親本寄主上受到測量。Seven stars which often appear on weapon ( including mixed weapon ) stand for a good wish. with triones beside, the wearer won ' t get lost and will make all bad things into good. it ' s both a weapon for self - protection and a holy thing in spirit
七星在兵器上經常出現(包括雜兵)它代表人們一種美好的願望,有北斗伴其左右,佩帶者不會迷失方向,逢兇化吉,遇惡成祥,它是護身的武器,也是一種寄託,一種精神上的聖物。The space distribution of pigment gland density on eleven places was analyzed by allotetraploid of ( g. arboreum g. bickii ) and varieties with pigment gland of g. hirsutum g. barbadense and the progeny population which is crossed by allotetraploid of ( g. arboreum g. bickii ) g. hirsutum and ( g. arboreum g. bickii ) g. barbadense
摘要利用(亞洲棉比克氏棉)異源四倍體和陸地棉、海島棉有色素腺體品種以及由(亞洲棉比克氏棉)異源四倍體為母本,以陸地棉和海島棉有色素腺體品種為父本,組配成的雜交後代群體,對植株上十一個部位色素腺體密度在群體內的分佈進行了初步分析。F2 the second filial generation, obtained by crossing or selfing within the f1 generation
子二代(雜種二代) : ,通過子一代內部的雜交或自交獲得。F1 the first filial generation ; i. e. the first generation that results from a particular cross
子一代(雜種一代) :雜交第一代,也就是一個特定雜交產生的第一代。In fact, the way to make the most of a dominant allele ( such as magic is proposed to be in the essay ) is to have all individuals heterozygous rather than homozygous, as then there will be twice as many individuals in the next generation with that trait for a given number of alleles
實際上,使顯性基因等位體(如魔法基因在文中被認為是顯性的)發揮最大作用的方式就是讓所有的有關個體盡量雜生而不是同生,因為對於一定量的基因等位體,那便意味著下一代有著兩倍的個體帶有那種特性。The chinese yellow breed is perhaps one of the earliest products of this cross.
中國黃牛可能是最早的這種雜交後代之一。Stability in early generation was first discovered in rice hybrid breeding, because it can fix genotype in early generation of hybrid, this probably made it real to cultivate a new kind of hybrid seed which could be planted for several generations
摘要早世代穩定現象首先在水稻雜交育種過程中發現,該現象可以早世代固定雜種基因型,這為培育可以多代利用的雜交種,奠定了一定的基礎。Mid - early matured variety, cylindrical shape with shiny pink skin, 30 - 40 cm in length, 5 - 8 cm in diameter, excellent fruit - setting, vigorous growth, suitable for growing in protected facilities and open field
中早熟、豐產、抗病長茄一代雜交種。植株生長勢強,果實長棒形、果長30 - 40厘米、果實橫莖5 - 8厘米、果皮亮紫紅色、有光澤,商品性極好。適宜保護地及露地栽培,可在我國南北方種植。The comprehensive judgement on flow - chinese cabbage f1 variety by gray systematic theory
菜心雜交一代品種的灰色綜合評判This variety is special for its hot tolerance. total life time is 45 - 50 days. diseases resistant
本品種引用國外耐熱材料雜交育成,極早熟,特耐熱,高抗病,雜交一代種。Variation of major agronomic characters and resistance to blast of mutant lines by space mutation in oryza sativa
辣椒雜種一代生化特性與農藝性狀的灰色關聯分析By using the way of gray correlation degree, this study analyzed the gray correlation coefficient, correlation degree and correlation order among seven main characters in 20 groups of parents and hybrids of two - row hulled malting barley
摘要研究採用灰色關聯分析方法,對20組二棱型啤酒大麥雜種一代及其親本的7個主要性狀之間的關聯系數、關聯度和關聯序進行了分析。From the randomized initial population, using the operators such as select, crossover and mutation, it can converge the globe optimum solution
從隨機產生的初始種群出發,通過選擇、雜交及變異等遺傳運算元,使種群一代一代地進化到最優解。The next generation of computers will integrate knowledge engineering into their programming in order to solve complex problems in a way that more closely resembles human reasoning
下一代計算機將會把知識工程學融合到其程序中,以便用一種近似人類思維的方法來解決復雜問題。Genetic algorithm is a kind of stochastic whole - searching regression algorithm, which is built on natural selection and molecule genetic mechanism, as a kind of universal algorithm to optimize the problems of complicated system, it is widely used in many fields due to its suppleness, universality, well self - fitness, robustness and fitness for collateral process, as a kind of bionic algorithms, the research on ga ' s application keeps far ahead of its theoretic research
遺傳演算法是藉助生物界自然選擇和遺傳學機理而建立的一種迭代全局優化隨機搜索演算法,是一種求解復雜系統優化問題的通用框架。它不依賴于問題的具體領域,具有簡單、通用、較強的自適應性和魯棒性,以及適于并行處理等顯著特點,因此被廣泛應用於眾多領域。作為一種仿生演算法,遺傳演算法的應用研究遠遠領先於演算法的基礎理論研究。分享友人