1.
Studies on Utilization of F_2 Hybrid Vigor in Cotton (G.hirsutum);
棉花杂种F_2代优势利用价值的研究
2.
The Study on the Heterosis and the Correlation in the F_2 Generation of the Main Parents CN18 and CN19;
小麦骨干亲本川农18和川农19的F_2代杂种优势及其相关性分析
3.
Choice of Distant Hybridization Parents for F_2 of Populus L.
杨树F_2代派间远缘杂交亲本选择
4.
Study on the Heterosis and Genetic Relationship of Quality Characters and Yield in F_1 and F_2 in Winter Wheat;
冬小麦F_1、F_2代主要品质性状和产量性状杂种优势的关系及其遗传分析
5.
Study on Photosynthesis and Water Use Efficiency in F_2 Hybrids of Ryegrass
黑麦草杂交F_2代光合及水分利用效率研究
6.
Path-coefficient Analysis of Quality Traits with Agronomic Characters of F_2 Generation in High Oil Soybean
高油大豆杂交F_2代品质性状与农艺性状的通径分析
7.
Genetic Dissection on the Basis of Heterosis Using an "Immortalized F_2" Population;
汕优63“永久F_2”群体构建及其杂种优势的遗传研究
8.
Partition of Parents Group, Analysis of F_1 Heterosis and Use of F_2 in Hybrid Wheat;
杂种小麦亲本优势群划分及其F_1优势分析与F_2优势利用
9.
The Pentosans Contents of Kernels in Wheat Variety and Its F_2 Cross Mating
小麦品种（系）及杂交组合F_2籽粒戊聚糖含量的研究
10.
Correlation and Path Analysis on Main Economic Characters in F_2 Generation of Upland Fine-fiber Cotton
陆地型长绒棉新种质F_2代主要经济性状相关及通径分析
11.
Analysis of Broad Heritability and Principal Component Yield Traits of F_2 lines of Fine Lines Cross of Kosteletzkya virginica;
海滨锦葵优良单系杂交F_2代产量性状的广义遗传力及其主成分分析
12.
Study on Cutting Orchard Management of Slash Pine×Caribbean Pine F_2 Hybirds
湿加松F_2代采穗圃修剪促萌试验
13.
The Error Linear Complexity Spectra of Binary Sequences with Period p～n;
域F_2上p～n-周期序列的差错线性复杂度谱
14.
Study on Distribution of Total Pentosan in F_2 Population of Wheat Cross Combination
小麦杂交组合F_2群体中总戊聚糖含量的分布
15.
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。
16.
Identification of QTLs for Important Quantitative Traits in Rice Clonally Propagated F_2 Population;
水稻F_2代无性系群体重要数量性状的QTL定位
17.
Segregation Analysis of Plant Height of Plant Height Mutants in the F_2 Generation of the Japonica Rice
粳稻不同株高突变体F_2世代株高分离分析
18.
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。