种子的

This species is widely cultivated for bird seed and is adventive in most warm-temperate countries.

本种是鸟种子的广泛栽培，并且在大多数暖温带国家外来。

Histochemical staining of immature transgenic rice seeds showed UidA gene was specifically expressed in endosperm and the highest level GUS expression was observed in aleurone layer.

对转基因植株种子的GUS 染色表明，UidA基因仅在胚乳中表达，在糊粉层中GUS表达量最高。

Histo chemical staining of immature transgenic rice seeds showed UidA gene was spe cifically expressed in endosperm and the highest level GUS expression was observ ed in aleurone layer.

对转基因植株种子的GUS 染色表明，UidA基因仅在胚乳中表达，在糊粉层中GUS表达量最高。

Therefore, the use of apomixis also holds great promise as an essential tool for plants sustainable agricultural production and economic crops improvement in the 21 century.

无融合生殖在作物育种上之贡献为能迅速稳定杂种优势并降低杂交种子的生产成本，得以在 21 世纪应用无融合生殖於农业和经济作物改良。

Indicating that refrigeration can enhance the salt endurance of Atriplex canescens seeds.

说明冷藏提高了四翅滨藜种子的耐盐潜力。

There is protein 1.1%, the fat 0.9% reducing sugar 10.9%, total anthocyanin 0.2% in Shisandra chinensis fresh fruit ; there is attar ,lignan 8%,sterin 0.1%, free fatty acids in seed oil of the Shisandra chinensis Baill.

五味子鲜果中含有蛋白质1.1％，脂肪0.9％，还原糖10.9％，总花青素0.2％；北五味子种子的油中含挥发油、木脂体8％，甾醇0.1％及游离脂肪酸。

The phytotoxin could completely inhibit seed germination of barnyard grass at concentration of 100 mg/L.

在100 mg/L浓度下，毒素可完全抑制稗草种子的萌发。

In the other hand its market value in China is 6 billon Yuan now and have the increasing potentiality.

我国玉米种子的市场价值为60亿元人民币，而且增长潜力巨大。

Botanically, Fruits are those portions of a plant that house seeds.

解：从植物学上讲，水果是指植物中拥有种子的部分。

From the point of view of geobotany, with the method of correlative factors of growth of plants, a countrywide theoretic ecological division was done for the introduction of Camptotheca acuminata and three kinds of areas of ecological preferent zone, ecological adaptive zone and ecological unadaptable zone were divided. With the theory of synecology, the characteristic on environment, constitution, life form spectrum, diversity, similarity of plots of communities were researched. Applying the method of species association, discrete distribution, indensity index, fractal geometry, etc. to research relations between the species of the communities, space distribution of Camptotheca acuminata, structure of age of Camptotheca acuminata, in different communities. Using the theories of autoecology, distibutons of seeds on land and growth of seedlings in vertical and horizontal directions, biomass of organ of Camptotheca acuminata were analyzed. On the opinions of conservation biology, the external and internal factors impressing Camptotheca acuminata were analyzed to research the mechanism of the endangered species, and with using of CTM Model, the future development direction of Camptotheca acuminata in different communities were forecasted, and. Standing on the position of resources ecology, discussing the regularity of camptothein in Camptotheca acuminata of different sites and seeding of different resources, also the the derive technics of camptothecin.

本文从地植物学的角度，运用植物生长相关因子法，对我国喜树资源的生态适宜区进行了划分，理论上确定了我国的喜树的引种栽培的最适生活区域、生态适宜区域和不适宜生活区域；从群落生态学的角度，对野生喜树所在的典型群落的群落环境、群落组成、群落生活型谱、群落的物种多样性特点、群落样地间相似性进行了研究；从种群生态学的角度，运用种间联结性、离散分布模型、聚集强度指数、分析几何等分析手段，对野生喜树所在典型群落间的种间关系、喜树的空间分布格局、年龄结构等进行了分析；从个体生态学的角度，对不同年龄组的喜树的种子的散落的垂直分布、水平分布、时间分布及种子发芽率和千里重等特点、不同种源的人工喜树苗期特点、喜树的高生长和茎生长特点、喜树的器官生物量特点进行了研究；从保护生物学的角度，对野生喜树的濒危的内部因素和外部因素进行了探讨，并运用CTM模型对不同群落中野生喜树的种群趋势进行了预测；从资源生态学的角度，对我国地理环境下喜树中喜树碱含量的地理分布规律、不同种源的喜树幼苗中喜树碱含量变化规律进行了研究，并对喜树碱的提取工艺进行了探讨。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。