1.
BKEEDING OF SPRING USE SILKWORM VARIETIES,LIAN·HUA AND TIAN·DOU AND THE PKEPARATION OF THEIR F1 HYBKID
家蚕春用品种莲·花、天·都的育成及其一代杂交种的选配
2.
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。
3.
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。
4.
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。
5.
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
6.
first filial
杂交第一代, 子一代
7.
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。
8.
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。
9.
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
10.
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
11.
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
12.
Acquirement and Molecular Identification of Hybrids in Chinese Jujube (Ziziphus Jujuba Mill.)
枣树杂交后代的获得及杂种分子鉴定
13.
Somatic cell hybridization is technique.
体细胞杂交是一种技术。
14.
an inferior dog or one of mixed breed.
一种低劣的或杂交的狗。
15.
Hardiness Resistance of Grape Progenies from Hybridization and Self-pollination
葡萄种间杂交和自交后代抗寒性分析
16.
Karyotype Analysis of Cymbidium hybridium×C. sinense, C. faberi and their Interspecific Hybrids
杂交兰×蕙兰种间杂交后代的核型特征分析
17.
Initial Research about Apicultural Hybrid Vigor and Hybrid Strain Applying for Many Generations
蜜蜂杂种优势及杂交蜂种累代利用的初步研究
18.
The Study on the Drought Induced Proteins of Different-Drought-Resistance-Ability Winter Wheat Varieties and Hybridization Progeny;
冬小麦不同抗旱品种及杂交一代干旱诱导蛋白的研究