1) Chaofeng F1 hybrid
超丰F1
2) L fuzzy perfect mappings
超F1紧集
4) Ultra-F 1 compact set
局部超F1紧
5) 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。
6) 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
补充资料：丰丰
1.多貌。
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