1) F1-layer
F1层
2) Fault F1
F1断层
1.
Fault F1 is the biggest and main fault at the dam site of Baima navigation-power junction.
F1断层为白马航电枢纽坝址区最大和最主要的断层,在白马航电枢纽预可行性研究阶段,对该断层进行了重点勘察研究。
3) F_1
F1
1.
This paper reviewed the heterosis performance of cotton,the research and application of insect-resistant hybrid cotton of F_1 and F_2 generation,and it also analyzed its application prospect and the existing problem in its application.
综述了棉花杂种优势的表现及抗虫杂交棉F1,F2代杂种优势的研究及应用,并对抗虫杂交棉的应用前景及存了问题进行了论述。
2.
The effects of four cultivation factors(planting density,N,K and DPS application) on fiber quality of F_1 and F_2 generation of transgenic hybrid cotton were studied by means of quaternary quadratic regression rotational combination design.
采用四元二次回归旋转组合设计,对影响转基因杂交棉F1、F2纤维品质的密度、施氮量、施钾量和缩节胺施用量进行了综合研究,结果表明,缩节胺与密度是影响F1纤维品质指标的关键因子,而密度是影响F2纤维品质指标的关键因子。
4) F 1
F1
1.
The F 1 heterosis and fertility of combinations of LH422 or 02428 with Indica or Japonica and combinations of Indica with Japonica were inspected in this test.
以广亲和品种轮回 4 2 2 ,0 2 4 2 8分别与籼、粳稻配组及粳 /籼、籼 /粳、粳 /粳配组 ,检验杂种F1代的杂种优势与育性 ,试验结果表明M - 2 0 1/日本优的每株穗数和单粒株重优势明显 ,广亲和品种与籼、粳配组能得到具有生物优势而且育性强的杂种F1代 ,显著提高水稻产量 ;轮回 4 2 2为亲梗型的广亲和品种 ,但 0 2 4 2 8对籼稻有较强的亲和
5) Ginsenoside Ⅲ
Majoroside-F1
1.
Results: Eight saponins were obtained and their structure were identified as Rg_ 1(1), Rg_ 2(2), 20(R)-Rg_ 2(3), Rd(4), Re(5), Ginsenoside Ⅲ.
结果:分离得到8个皂苷类成分,分别为人参皂苷Rg1(1),Rg2(2),20(R)-Rg2(3),Rd(4),Re(5),GinsenosideⅢ(6),Majoroside-F1(7)andRb1(8)。
6) F1 generation
F1代
1.
Segregation of RAPD markers in F1 generation of Pinctada fucata family;
RAPD标记在合浦珠母贝家系F1代的分离方式
2.
Result: Photosynthetic area, content of chlorophyll, net photosynthesis and yield of F1 generation are higher than those of the parents; chla/b rate is lower; growth is almost the s.
目的:比较研究霍山石斛的F1代与其亲本的生长量、有效成分和生理特性等差别,探讨霍山石斛杂交利用的可能性,筛选保持较高有效成分且产量高的新资源。
3.
The genetic analysis of eight main characters showed that the main characters of nut of F1 generation were separated complicatedly and widely, which belonged to quantitative character heredity controlled by multigenic.
对杂种F1代坚果8个主要性状的遗传分析表明:杂种F1代坚果的主要性状广泛复杂分离,为多基因控制呈数量性状遗传。
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