种质

And meanwhile, the result show that, stomatal restriction was the main factor of the net photosynthetic rate's decrease in the leaves of 4 Dactylis glomerata L. when stress in slight water stress and the non-stomatal restriction was the main factor of the net photosynthetic rate in the leaves of 4 Dactylis glomerata L.

盆栽控水条件下4份鸭茅光合作用机理的研究表明，随着干旱胁迫程度的加强，4份鸭茅种质的净光合速率、蒸腾速率、气孔导度及叶绿素含量均有较大幅度的降低，其中抗旱性强的ZXY04P-201下降的速度慢，幅度小，而抗旱性差的ZXY04P-239下降速度快，幅度大。

Thirty-seven accessions of wild Dactylis glomerata L. were used in assessment of genetic diversity by means of amplified fragment length polymorphism. Nine primer pairs were selected from 64 preparations and then used to analyze the plant materials.

应用扩增片段长度多态性技术，从64个引物对中筛选出9个，分别对37份鸭茅种质进行扩增，共得到400条清晰条带。

The method and influencing factors of in vitro conservation of Dendrobium officinale germplasm were studied.

研究了在低温条件下保存铁皮石斛种质资源的方法和影响因素。

The results showed that the RAPD approach was more efficient on Study of genetic background and relationship of Dendrobium germplasms .

结果表明：RAPD标记技术较好地从分子水平上揭示石斛种质资源的遗传背景、亲缘关系。

The genetic diversity and relationship of 9 Dendrobium germplasm resources collected in Hainan Province were analyzed by SRAP markers.

利用SRAP技术对海南9种石斛种质资源的遗传多样性及亲缘关系进行分析。

The leaf color and leaf fabric, figure and capability of water utilization of the clone Changlin 4 made it more suitable to environment of higher temperature droughty and stronger radialization.

生理特征分析表明，长林4号在叶片构造和叶水分利用状况等方面的生理特征支持上述结论；长林4号在幼龄期光合特性上具有比较优良的种质优势。

In this paper, Amplified fragment length polymorphisms markers were used to explore genetic variation and divergence among two selected lines and one cultured control of the pearl oyster, Pinctada martensii Dunker.

AFLP (Amplified fragment length polymorphism)是一项基于 RFLP 和 RAPD 基础上的分子标记技术，广泛应用于动植物和海洋生物的种质资源鉴定及群体遗传结构分析中。

The wild Elymus L. of Tibet germplasm resources had a high genetic diversity.

西藏披碱草属野生牧草种质资源具有较高的遗传多样性。

Citrus is one of the most important economic fruit trees, and its germplasm resources can be preservated effectively with embryogenic calli.

柑橘是世界上有重要经济价值的果树之一，利用柑橘胚性愈伤组织可有效地保存其种质资源。

Trachinotus ovatus and Epinephelus tauvin were popular in many restaurants. In this paper, the karyotypes of them were reported for the first time.

本论文的研究可以为海洋鱼类的种质资源补充基础资料，也为海洋鱼类遗传育种等工作的开展提供便利。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。