1.
A major barrier to interspecific hybridization is sterility in the F1 progeny.
种间杂交的主要障碍是F1代的不育性。
2.
The Research on the F1 of Population of Pinus Massoniana with RAPD Markers Technology;
马尾松两系杂交F1代RAPD分子鉴别
3.
The comprehensive evaluation of F1 herbaceous flowers in land cultivation
露地花坛夏季草花F1代品种综合评价
4.
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。
5.
The effect arises from an accumulation of dominant genes in the F1.
这种现象产生的原因是显性基因在F1代积累。
6.
The Genetic Analysis of Gynogenetic F_1 of Transgenic HU-IFN-α Gene Grass Carp;
转Hu-IFN-α基因草鱼雌核发育F1代的遗传分析
7.
New Germplasm Creation and F1 Hybrids Identification in Diospyros Kaki Thunb
柿新种质创制及F1代杂种鉴定技术研究
8.
Segregation Pattern of SRAP Maker in F1 Generation of Pinctada martensii Family
SRAP标记在马氏珠母贝家系F1代中的分离
9.
Ultraviolet Radiation Induced Pleurotus Ferulae Lenzi and the Predicting of the Heterosis of F1 Generation Strains;
白灵菇孢子紫外线诱变杂交及F1代杂种优势的预测
10.
Selecting of 14 Pleurotus Eryngii Parent Strains and the Predicting of the Heterosis of F1 Generation Strains;
杏鲍菇杂交亲本的筛选及F1代菌株杂种优势的预测
11.
Genetic Diversity of Phytophthora Infestans and the Analysis of F1 Progeny Isolates Using SSR Marker
马铃薯晚疫病菌SSR基因型多样性及其有性F1代菌株分析
12.
Study on the Leaf Characters Segregation and Variability of Apple Hybrid Seedlings and Application in Preselection
苹果杂种F1代叶片性状分离变异及在早期选择中的应用研究
13.
The Toxic Effects of Octylphenol, Nonylphenol on the Reproductive System of F1 Generation Male Rats
辛基酚、壬基酚对F1代雄性大鼠的生殖毒性作用研究
14.
Effect of Nonylphenol Exposure in Pregnancy on the Development of Ovary in Offspring Mouse
壬基酚孕期经口染毒对F1代昆明小鼠卵巢发育的影响
15.
Effects of Age and Sex on Slaughter Characteristics and Meat Quality of Poll Dorset×Small Tail Han Sheep F1 Lamb
年龄和性别对陶赛特×小尾寒羊F1代羔羊屠宰性能与肉品质的影响
16.
Cloning, Identification and Characterization of the Differentially Expressed Genes between Longissimus Doris of Meishan×Yorkshire F1 Hybrids and Their Parents Meishan Pigs;
梅山×大白F1代与其亲本梅山猪背最长肌间差异表达基因的克隆鉴定及特征分析
17.
Comparative Study on Tissue, Organ Growth and Development between Hybridized F1 Generation and Three Kinds of Pure Breed Lamb
杂交F1代羔羊与三个纯种羊羔羊组织、器官及生长发育状况比较研究
18.
A Study on Leaf Anatomy and Epidermal Micromorphology of Michelia crassipes Law(♀),M.calcicola C.Y.Wu(♂) and Their F_1 Hybrids
紫花含笑(♀)与灰岩含笑(♂)及其杂种F1代叶表皮微形态和叶结构的比较观察