F2 lambs

In this paper,the determination was conducted on the growth of F2 lambs of Ovis ammon and Bashbay sheep.

对野生盘羊与巴什拜羊第二代杂种羔羊生长发育进行测定,通过对第二代杂种羔羊初生前的生长发育、哺乳期的生长发育测定,并且绘制了累积生长、绝对生长和相对生长曲线图。

After planted one generation, tulip imported into China had not been widely used because of the degeneration of the second generation seed corms.

我国目前引种的郁金香经第一代种植后 ,第二代种球由于普遍退化而未充分加以利用。

mate a hybrid of the first generation with one of its parents.

使第一代杂种与其双亲之一交配。

F1 The first filial generation; i.e. the first generation that results from a particular cross.

子一代（杂种一代）：杂交第一代，也就是一个特定杂交产生的第一代。

first filial

杂交第一代, 子一代

(genetics) designating the generation of organisms from which hybrid offspring are produced.

（遗传学）指产生出杂交后代的第一代生物体。

Mendel called the second generation the hybrid generation.

Mendel将第二代称为杂交代。

Performance on Powdery Mildew Resistance of F_1 Generation in Hybrid Wheat

杂交小麦杂种一代白粉病抗性表现规律的研究

F2 The second filial generation, obtained by crossing or selfing within the F1 generation.

子二代（杂种二代）：，通过子一代内部的杂交或自交获得。

Of or designating the generation of organisms from which hybrid offspring are produced.

亲本的，亲代的属于或指产生出杂交后代的第一代生物体的

Several ρ-type Doping in Hg_(1-x)Cd_xTe: First-principles Study

Hg_（1-x）Cd_xTe材料几种ρ型掺杂的第一性原理研究

The hybrids and progeny of intervarietal crosses of P. graminis were tested on the parental hosts.

杆锈变种间杂交的一些杂种和后代在其亲本寄主上受到测量。

Study on Appraisal of Seed Purity Test of F1 Hybrid of Watermelon and Melon;

西瓜、甜瓜杂种一代种子纯度鉴定的研究

Method: Eight male adult dogs underwent extraction of the mand ible third、 fourth premolar and first molar.

方法:8只成年雄性杂种狗,拔除双侧下颌第三、前磨牙和第一磨牙。

Modern continental law generally adopts the third solution.

现代大陆法一般采纳第三种意见。

The Study of an Antenna for the Fourth Generation Maritime Satellite Communication;

一种第四代海事卫星通信天线的研究

Heterosis Analysis of Hybrid F1 of England and Spain Turbot (Scophthalmus Maximus L.);

英国和西班牙进口大菱鲆杂交子一代的杂种优势分析

The Chinese yellow breed is perhaps one of the earliest products of this cross.

中国黄牛可能是最早的这种杂交后代之一。

Study on Genetic Variation of the Hybrid BC_1F_1 between Elymus Dahuricus and Hordeum Brevisubulatum;

披碱草与野大麦杂种回交一代遗传变异研究

Study on the Sterility of F_1 Hybrids between Indica and Japonica Rice;

水稻灿粳亚种间杂交子一代不育机理的探讨