查询词典 tetraploid

The spikes per plant of diploid and tetraploidspecies were higher, but the kernels per spike, 1000 kernels weight and grain yield werelower than those of hexaploid and octoploid species. The NYE, NHI and NPE of diploidand tetraploid were lower; NDE was higher than these of Hexaploid. Variation of NPE andNYE was higher than other NUE indexes, which indicated that NPE and NYE could beused as indexes for NUE differences in different wheat related species.

与普通小麦相比，二倍体和四倍体材料单株穗数较多，但穗粒数、千粒重和产量比较低；氮素籽粒生产效率、氮素收获指数和生理效率比较低，具有较高的氮素干物质生产能力；NYE和NPE的变异性较大，可以作为小麦不同近缘种氮素利用效率差异的主要指标。

The frequency of polyembryony and twin-embryony in tetraploid species are generally higher than those of diploid.

依胚的大小和发育的完整性可将双胚豆划分为4种类型：双同胚、大小胚、大残胚、双残胚。

To establish the efficient in vitro regeneration system and polyploidy induction system, the effects of hormones in media on shoot regeneration from leaves of plants and the suitable methods of tetraploid induction were studied.

为建立寒富苹果高效的离体再生体系和多倍体诱导体系，以试管苗叶片为外植体，研究了培养基中激素对寒富叶片再生芽的影响及适宜的四倍体诱导方法。

If such gametophytes produce fertile gametes, the resulting sporophyte is then tetraploid, and large polyploid series may subsequently be developed.

如果这种配子体能够产生可育的配子，那么形成的孢子体通常是四倍体，这样就可以得到大量的多倍体。

Dimethyl sulfoxide of 1.5% and 25℃ temperature is helpful to tetraploid induction.

添加1.5%二甲基亚砜和25℃的温度有利于四倍体大蒜的诱导。

There are tetraploid and diploid regenerated plants in "Page tangelo + Valencia orange" and "Hongju tangerine + Rough lemon".

丹西红橘+粗柠檬和佩奇橘柚+伏令夏橙2个组合的再生植株既有二倍体也有四倍体；

I'm afraid the details are confidential, but I treated a tetraploid man once.

恐怕细节是机密的，但是我对待了一个四倍体的男人一次。

Tissue culture was a new and efficient way to obtain tetraploid melon.

组织培养可以成为获得四倍体甜瓜的有效途径。

This is the first report on the methylation patterns of in vitro-derived mouse tetraploid embryos.

这是对小鼠四倍体早期胚胎基因组甲基化模式的首次报道。

Prospects of tetraploid fish application in transgenic fish indu strialization were also presented in this article.

最后，展望了转基因四倍体鱼在转基因鱼产业化方面的应用前景。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。