杂种

Based on the obvious xenia effects of high oil and heterosis, a technique called TEU(three-effect-utilization) was developed to pyramid the cytoplasm male sterile effect, heterosis and xenia of oil content into a production system, which has patented in China.

从20世纪20年代开始，玉米杂种优势利用经历了综合种、双交种、三交种、单交种阶段，每一次利用方式的改变都使玉米生产的水平得到了很大的提高。

Do the Zeta's or hybrids have to endure the temptation of Satan as the humans do?

这样的zeta或杂种不得不忍受的诱惑撒旦作为人类做？

Cytological studies show that the incompatibility of interspecific hybridization of Abies is mainly due to the abort of embryos or ovules.

细胞学研究发现，杂种胚阶段胚或胚珠的败育是冷杉种间杂交不成功的主要原因。

Cytological studies show that the incompatibility of interspecific hybridization of Abies is mainly due to the abort of embryos or ovules.

布朗决定取消11月举行全国大选的计划，9。杂种胚阶段胚或胚珠的败育是冷杉种间杂交不成功的主要原因。

Antheraea pernyi ; genetics ; breeding ; heterosis ; molecular marker

柞蚕；遗传；育种；杂种优势；分子标记

Observations on intact transparent ovaries under inverted differential interference microscope showed that the antipodal cells in the embryo sac disappeared at 4 days after pollination.

用粳稻84_15与水稻喜峰杂交，在杂种第二代选育出中新一号比秋光增产11%，已种植F10代农艺性状保持一致。

Tic division of F1 hybrid was normal ,anucleate cells and cells with micronuclei which were produced by asymmetrical separation of chromosomes were observed at the second meiotic division.

结果表明，杂种F1减数第一分裂基本正常，在减数第二分裂观察到由于染色体不对称分离产生的无染色质和仅带有微核的子细胞。

Because of its apomictic reproduction character, an accurate and rapid identification of the F_1 hybrid seedlings of Malus xiaojinensis is of great importance to both genetic study and utilization of the precious genes in the germplasm.

为了建立用现代分子标记鉴定苹果杂种实生苗的方法，在本论文中我们对小金海棠和山荆子F_1代杂交实生苗79个单株进行了RAPD分析，并用SSR标记对RAPD标记的初步鉴定结果进行了进一步的验证。

The apomictic research progress in plants is summarized, including the approaches of fixing heteroses, selecting and breeding of plant varieties and apomictic materials, embryology, genetics, apomictic characteristics and so on .

介绍了植物无融合生殖在选育无融合生殖品种及育种材料方面的成果；概述了植物无融合生殖在胚胎学、遗传学及生殖特性，杂种优势固定途径及无融合生殖材料选育途径等方面研究的现状和趋势。

Because of its apomictic reproduction character, an accurate and rapid identification of the F1 hybrid seedlings of Malus xiaojinensis is of great importance to both genetic study and utilization of the precious genes in the germplasm.

由于小金海棠具有无融合生殖特性，早期准确、快速、有效地鉴定其F1代杂种实生苗对于研究利用其众多抗逆基因具有重要意义。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。