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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。

Seed germination and haustorium formation stimulated by fluridone were observed in three Cistanche species.

以3种肉苁蓉属植物种子为材料,研究了氟啶酮对肉苁蓉种子萌发和吸器发育的影响。

There is the seed of of all kinds floral such as potato, carrot, pea, chili, corn, helianthus, rose in the shop, buy next seeds that you like to be planted in the garden, await results again, this is the primary technological process of this little game.

商店里有土豆、胡萝卜、豌豆、辣椒、玉米、向日葵、玫瑰花等各类植物的种子,买下你喜欢的种子在花园种下,再等待收获,这就是这个小游戏的基本流程。

The cotyledon handle from Brassica napu L. cultivars Huayou No 5 and Huayou No 6 were transformed by Agrobacterium-mediated method.

为了使该基因在油菜种子中特异表达,采用油菜种子特异启动子BcNA1,构建了植物表达载体pBIBE。

Remove any seed heads unless you want the plants to seed.

消除任何种子元首,除非你不想植物种子。

Well, he starts with his seed onions, plants them, nurtures them, and at the end of the year he will have 4 or 5 times the seed he planted.

好时,他开始与他的洋葱种子,植物,其中,培育他们,而在今年年底,他将有4或5倍种子亲手栽种的。

The consumer shall file a complaint(sworm for AR,FL,IN,MS,SC,TX,WA;signed only,CA,GA,ID,ND,SD)along with the Commissioner/Director/Secretary Agricuiture, Seed Commiss sioner.or Chief Agricultural Officer within such time as permit inspection of the crops,plants,or trees by the designated agency and the seedsman form whom the seed was purchased.

重视生产为代表。消费者应提出申诉( sworm的阿肯色州,佛罗里达州,在质谱南卡罗来纳州,得克萨斯州,华盛顿州;才签署,美国加利福尼亚,镓,编号,钕,的SD )随着专员/主任/秘书Agricuiture ,种子Commiss sioner 。或首席农业主任的时间内,允许检查作物,植物,或树木由指定机构和seedsman形式的种子是谁购买。

In the exploitatation and utilization of Bromus stamineus, we must take the different sowing methods and plant densities into account. They have heavy influences on the forage especially in terms of the forage growth. The salt, temperature and water are important factors that affect the seeds germination,which deciding the germination time and germination place.we designed four temperature (15℃,20℃,25℃,30℃) and NaCl density(0.3%,0.6%,0.9%,1.2%) and PEG density(0.126g/gwater,0.186 g/gwater,0.232 g/gwater,0.270 g/gwater).

引进美国无芒雀麦是农业部948项目&旱生灌草植物资源的引进及开发利用&的引进草种之一,为了合理开发和利用它,本论文对引进无芒雀麦和本地无芒雀麦的种子萌发、田间种植和栽培技术3个方面进行了对比研究,比较了两种无芒雀麦生长特性;结合方差分析,确定了引进美国无芒雀麦种子萌发指标和栽培技术指标。

The effects of temperature and illumination on seed germination of Chenopodium ambrosioides, an invasive alien harmful weed, and changes of germination capacity during its storage under different temperature were studied.

研究了不同光照和温度对外来有害植物土荆芥Chenopodium ambrosioides种子萌发率的影响及种子在不同贮藏时间和不同贮藏温度下萌发率的变化。

ObjectiveTo study the seeds of endangered medicinal plant Dalbergia odorifera T. Chen. based on effects of different storage conditions, characteristics of germination, and speed of leaves growth.

目的观察研究珍稀濒危药用植物降香黄檀种子贮藏条件、种子萌发特性和幼苗叶片生长速度。

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What would he tell Judith and the children?

他将怎样告诉朱迪丝和孩子们呢?

I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我,一个心中布满虚荣的女孩子真实的想法。

Oh, and I bought myself a new laptop," he said."

哦,我还给我自己买了一个新笔记本"他说。"