四体的

The low seed setting percentage is the most important reason that limits the application of the autotetraploid rice.

同源四倍体水稻结实率偏低是影响其在育种中直接应用的重要原因。

The autotetraploid gives a chance to improve the content of medical materials in the root of P. thomsonii.

同源四倍体粉葛为葛根中药用物质质量分数的提高提供了基础。

Embryo development and origin of twin-embryo of autotetraploid rice with twin-embryo seedlings were observed and verified.

利用激光扫描共聚焦显微技术对同源四倍体双胚苗水稻的受精过程、胚胎发育过程和双胚来源进行观察鉴定。

Biological effects of autotetraploid rice after ion beam implantation of low energy N+.

低能氮离子注入同源四倍体水稻的生物学效应。

From 1996 to 2005, someautotetraploid rice had been selected and improved. T-test showed that seed setincreased obviously. The relationships among yield characters of autotetraploid ricewere analyzed.

从1996年到2005年对部分同源四倍体水稻进行了连续选择改良，T检验表明经过9年的选择改良，其结实率显著提高。

The cladding layers are composed by ternary boride based hard phase and binder phase of α-Fe.

四种硬质覆层材料的硬质覆层都是由硬质相三元硼化物和粘结相体心立方α铁组成。

Callose staining with particular fluorescence dye-Aniline blue indic-ated that the degradation of callose was delayed.

利用胼胝质特异性荧光染料甲基蓝对花药进行染色，表明突变体胼胝质降解延迟，导致小孢子不能从四分体中释放出来，最终没有花粉粒的形成。

What kind of steroidal drugs can react with the alkaline tetrazolium blue TS What is the chemical reaction equation

哪类甾体激素可与四氮唑蓝产生反应，是结构中的何种基团参与了反应，反应式是什么？

In chapter 3, the equation for solving free vibration of tube in tube tall building, which is developed by using equivalent closed tube method, is proved strictly to be the fourth-order Sturm-Liouville differential equation.

第三章严格证明了按等代筒体法推导出来的筒中筒高层结构自由振动方程是四阶Sturm-Liouville微分方程。

One hundred and eighty 14-days-old chickens were divided randomly into coccidia primary infection group (I1),coccidia secondary infection group (I2),and control group.Immune indexes were examined by using immune staphytococcal protein A rosette test,indirect enzyme-linked immunosorbent assay,cellular culture technique and MTT method.

将180只14日龄雏鸡随机分为毒害艾美球虫初次感染组、二次感染组和对照组，应用免疫SPA菌体花环、间接ELISA及细胞培养技术和四甲基偶氮唑盐测定法对相关免疫学指标进行了检测，以研究毒害艾美球虫二次感染对雏鸡外周血液免疫功能变化的影响。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。