种质

The RNAi technology can effectively inhibit the expression of lipoxygenase gene in soybean seed, decrease the activity of lipoxygenase, increase the amount of oil content in its products, improve the quality of soybeans, and create new superordinary germplasm resources of soybean.

应用RNA干扰技术可有效的抑制大豆籽粒中脂肪氧化酶基因表达，降低脂肪氧化酶活性，提高大豆油份含量，改良大豆品质，创造优良大豆种质。

The objective of this study was try to find a new avenue of breeding technique in soybean to improve the quality of soybeans and create new superordinary germplasm resource of soybeans by RNAi, which prohibits the gene expression of lipoxygenase in soybean seed.

通过RNA干扰技术抑制大豆籽粒中脂肪氧化酶基因表达，改良大豆品质，创造优良大豆新种质，探索大豆品质育种新途径。

For the poor of supersweet maize genetic resources on insect resistance, the insect-resistant varieties is not easy obtained by conventional breeding in the short time.

超甜玉米抗虫种质资源相对贫乏，本身缺少有效的抗虫基因资源，通过常规育种方法在短期内难以获得抗性品种。

ISSR markers were used to study the genetic relationship and investigate the genetic diversity and genetic structure for providing a theoretical basis and technical support for appropriate conservation and application of existing genetic resources of Tagetes.

通过ISSR分子标记研究品种资源遗传关系，探讨其种群遗传多样性水平和遗传结构，为了解品种间遗传多样性、品种间亲缘关系、育种及科学合理保存和利用现有万寿菊属种质资源提供理论依据和技术支持。

Primary core collection containing 180 apples had been established, and a tree diagram wasconstructed by using wards method. The main results were as follow:①Compared with predecessor research, the classical taxology phylogenetic relationshipamong M. baccata, M. prunifolia and M.

利用DNA扩增结果构建初级核心种质180份，对其进行再聚类分析，得到如下结论：①验证了前人对山荆子系、海棠系和陇东海棠系亲缘关系的经典分类。

Tigrina cantor. The results indicate that the percentage of polymorphic loci of R. tigrina rugulosa and R. rigrina cantor are 53.77% and 70.79%, respectively; the genetic diversity index are 0.1345 and 0.1780 and the inter-similarity index are 0.4238. The inter-strains genetic distance is 0.6613, indicating that the genetic variations of R.

tigrina cantor的种内种间遗传多样性及种质特异性分子标记，结果表明：中国虎纹蛙和泰国虎纹蛙多态位点比例分别为53.77%和70.79%；遗传多样性指数分别为0.1345和0.1780；种间的遗传相似系数为0.4238，遗传距离为0.6613。

Fenugreek ( Trigonella foenum-graecum L.) seeds which introduced from United Arab Emirates were carried to the space by the recoverable satellite "Shi Jian 8". After space loading, the seeds were planted to be observe and investigated compared to the control group. The results showed that the germination rate declined after space loading compared to the control group.

以阿联酋胡芦巴种质为材料，经&实践八号&返回式卫星搭载进行空间诱变，回收后，与留地面未经搭载的对照在相同环境下同时播种，对诱变后代（SP1代）的主要农艺性状和品质性状进行研究。

Germplasm using SSR markers of f unctional gene in r ice. Scientia

利用水稻功能基因SSR 标记鉴定水稻种质资源。

Morphological markers were used to study cluster analysis in 43 accessions of Okra by unweighted pair group method arithmetic averages.

通过对43 份黄秋葵种质的22项形态指标进行形态标记，通过类平均法建立树状聚类图，得出黄秋葵和黄葵在亲缘关系上存在着明显的差异。

The main results were as follows:1.50 Xanthomonas axonopodis pv.citri isolates were obtained from diseased materials of several citrus cultivars collected from Hengyang,Chenzhou and other areas of Hunan province.

同时，选择高感病的主栽品种甜橙进行试验，获得的抗病新种质，从根本上控制柑橘溃疡病的危害，对柑橘产业意义重大。

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％。