二倍

In crossing of the 8 autotetraploidy rices (Oryza sativa, 2n=4x=48), APIV(4), IR36(4), Zixuedao(4), Ce 64(4), Minghui 63(4), IR28(4), Ce 90(4) and Gui 99(4) used as the females, with Pennisetum alopecuroides (2n=2x=18) used as the males, the seeds were obtained, but no seed was got in the crosses of the 3 diploidy rices (Oryza sativa, 2n=2x=24), APIV(2), Ce 90(2) and Zixuedao(2) used as the females, with Pennisetum alopecuroides.

利用APIV(4)、IR36(4)、紫血稻(4)、测64(4)、明恢63(4)、IR28(4)、测90(4)和桂99(4)等8个同源四倍体水稻(Oryza sativa， 2n=4x=48)为杂交母本，以狼尾草(Pennisetum alopecuroides， 2n=2x=18)为杂交父本进行杂交，获得了实粒种子。但是，在以APIV(2)、测90(2)和紫血稻(2)这3个二倍体水稻(Oryza sativa， 2n=2x=24)为杂交母本，以狼尾草为杂交父本的杂交组合中却没有获得实粒种子。

There are obvious difference on morphology and cytology between polypoid and diploid.

四倍体与二倍体在形态学和细胞学上有明显差异。

The results indicated that not only diploid pure lines but also aneuploids were produced by this method.

这一结果表明，用这种方法不仅能获得二倍体纯系，而且还可以获得非整倍休。

In some species there are diploid and polyploid varieties that look almost identical, though sometimes they may be referred to as separate species.

在一些同时具备二倍体和多倍体的物种中，虽然它们被认为是不同的独立物种，但它们的外形几乎是完全相同的。

The results showed that meiosis of the tetraploid melon was similar to that of diploid melon with some special behaviors.

结果表明：同源四倍体甜瓜花粉母细胞减数分裂过程与二倍体类似，但有其特殊性。

This paper also discusses the mechanism of occurrence of these aberrant embryos and discusses their relationship to diploid–tetraploid mosaicism.

文章也讨论了这种异常胚胎的发生机制，以及它与二倍体－四倍体嵌合体的关系。

The results indicated that both WUE and NUE increased during the evolution process from diploid to hexaploid.

结果表明，小麦在从二倍体→六倍体的长期进化过程中，WUE和NUE均表现出增加的趋势。

ABSTRACT Objective: To determine polysaccharide contents in different intervarietal of diploidy and tetraploidy Banlangen, and to provide scientific evidences for developing and utilizing resources of Banlangen.

第二军医大学学报991015 摘要目的：测定二倍体的不同品系与四倍体板蓝根中多糖的含量，为综合利用板蓝根资源提供科学依据。

Punctata have been confirmed to have both diploidy and tetraploidy.

punctata被证明同时含有二倍体和四倍体。

Haplont A haploid organism that represents the vegetative stage in life cycles in which diploidy is restricted to the zygote.

单倍性生物：是一个单倍体或生物体，该生物体体现二倍性仅限于合子的生活史中的营养阶段。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。