繁殖的

The spores of Neocheiropteris palmatopedate were cultured in improved Knop's medium, in-situ humus soil and red soil respectively. Spore germination and gametophyte development were observed under optical microscope and dissecting microscope, and the impact of four culture methods on the gametophyte development and sexual reproduction was compared. On these experiments, its cause of endangerment was analyzed.

采用改良Knop's固体培养基、原生境腐殖质土和红壤分别培养扇蕨孢子，光学显微镜及解剖镜下观察记录其于包子萌发及配子体发育过程，比较了3种培养方法对其配子体发育和有性繁殖的影响，并在此基础上探讨了扇蕨的濒危原因。

In addition, useful in the seedling breeding of litchi growing areas, the existence of rich germplasm resources.

此外，在有用实生繁殖的荔枝产区，存在丰富的种质资源。

On our program this week, we will tell about an animal that can reproduce without mating.

在本周的节目里，我们会向您介绍一种不需要交配便可以繁殖的动物。

Although they are unicellular, at times of reproduction the "father" cell and the "mother" cell combines together .

虽然它们是单细胞的，在繁殖的时候，"父细胞"会和"母细胞"结合起来。

Eggs of Black-crowned Night Heron and Little Egret were sampled in May of 2005 from Yingshang Balihe Reserve, Anhni Province. Residues of Cd, Pb and Cr were determined by atomic absorption spectrophotometer analysis.

2005年5月，采集了淮河地区颍上八里河集群繁殖的夜鹭和小白鹭鸟卵共18枚，用原子吸收法测定了卵壳、内容物中重金属Cd、Pb、Cr的残留量。

No steroids would be used on the Olympic pigs, which would be chosen from carefully monitored parents and only fed organically-grown feed, Mr Niu said.

牛胜难表示，奥运猪将选择受到严密监测的种猪母猪繁殖的猪仔，幷且只喂养有机饲料，不会对它们使用类固醇。

No steroids would be used on the Olympic pigs, which would be chosen from carefully monitored parents and ssbbww.com fed organically-grown feed, Mr Niu said.

牛胜难表示，奥运猪将选择受到严密监测的种猪母猪繁殖的猪仔，并且只喂养有机饲料，不会对它们 www.Dddtt.com 使用类固醇。

When you outcross, look for a male from a line of distinct type.

当你在进行异系繁殖的时候，请选择一只与本犬型截然不同的犬只。

Because of heavy heterozygosity of cassava genome caused by stack propagation and outcross in longtime, the practice of biotechnology would resolve these problems in broad background.

由于木薯是无性繁殖的异花授粉作物，传统育种方法在基因重组方面受到局限；生物技术的应用却能够在很大程度上解决上述问题。

Study on Tissue Culture and Rapid Propagation of Oxalis triangularis

以三角紫叶酢浆草丛生芽和叶片为外植体，研究不同激素水平对三角紫叶酢浆草组织培养的影响，探讨三角紫叶酢浆草快速繁殖的最佳途径。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。