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The reasons that result the seed setting low are different in different autotetraploid rice line.

所以，双受精异常、胚胎发育异常和胚乳发育异常也是结实率降低的原因。

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。

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。

Stem cells in bone marrow are considered as an ideal sources of seed cells with the advantage of being isolation and easy proliferated in vitro, which is a prerequisite for the autotransplantation.

存在于骨髓内的干细胞来源丰富，采集方法简单，体外扩增容易，具有自体移植的必要条件，是一种理想的种子细胞。

When I eat the avocado I always eat the seed.

当我吃鳄梨我一直吃的种子。

Oatmeal has some, but it cannot compare with the avocado seed.

燕麦有一些，但它并不能比较与鳄梨种子。

Nevertheless we think the X-Seed 4000 is awesomely cool, even if it is permanently consigned to the drawing board.

当然，即便这个方案只处在构想阶段，我们仍觉得这是个非凡的建筑设计。

Melia azedarach seed oil ; free fatty acid ; solvent extraction ; acid value ; biodiesel

苦楝籽油；游离脂肪酸；溶剂萃取；酸值；生物柴油

ObjectiveTo study bacteriostasis and its practical safe of Mango seed extract in vitro.

目的研究芒果提取物的体外抑菌效果及其使用的安全性。

A total of 396 rhizobacterial strains isolated from different crops in central Taiwan were screened by a petri dish-blotter paper system and then by a peat moss-plug system in growth chamber for their effects on tomato growth following seed bacterization.

中文摘要青枯病为土壤传播性病害，不易防治。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。