1.
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。
2.
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
3.
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
4.
The Studies on Mechanism of Summer Squash Hybrids Yield Heterosis Formation;
西葫芦杂种一代产量优势形成机理的研究
5.
Studies on Inheritance and Variation of DNA Methylation in Parents and F_1 Hybrids of Lagenaria Siceraria. Var. Hispide;
瓠瓜杂种一代及其亲本DNA甲基化遗传和变异的研究
6.
RAPD and Microsatellite Analysis of Filial Generations from Cyprinus Carpio var Specularis Lacepede (♀)×Carassius Curatus Cuvieri (♂) and Their Parents;
日本白鲫（♀）×德国镜鲤（♂）杂种一代及双亲的RAPD和微卫星分析
7.
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。
8.
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。
9.
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。
10.
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
11.
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。
12.
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
13.
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
14.
Analysis on heterosis of Chlamys farreri×Patinopecten yessoensis by SRAP marker
栉孔扇贝(♀)×虾夷扇贝(♂)子一代杂种优势的SRAP分析
15.
A low-complexity iterative detection algorithm for DFT-S-OFDM systems
一种低复杂度的DFT-S-OFDM系统迭代检测算法
16.
A Low Complexity Scheme for Space-Time Multi-user Iterative Detection
一种低复杂度的空时多用户迭代检测方案
17.
first filial
杂交第一代, 子一代
18.
They determined that F2 hybrids slightly outgrew the F1 hybrids.
他们认为杂种后F2代生长量稍大于F1代杂种。