株苗

A few days, I became aware of a small potted plant is not a good support, and on the balcony after two days, pot Several have two oval-shaped leaves of the seedlings to break through the soil, so it is strange to think: how there are so many so quickly Alocasia does the Miller?

几天下来，我才知道原来小小的一盆花并不好养，在阳台上放了两天，花盆里就有几株撑着两片椭圆形叶子的小苗冲破泥土，我奇怪地想：怎么这么快就有这么多观音莲的苗呢？

Genetic variation of coleoptile length, Incomplete leaf length and seedling height of 7d after germinated and their correlation with PH were studied by using 95 varieties of japonica rice in 6 different ecotypes under natural and controlled(30 ℃ 12 h light) conditions.

在自然及30℃、12h光照的控制条件下，对6个生态类型的95个粳稻品种芽鞘长度、不完全叶长度及7d后苗高3个幼苗性状的遗传变异及其与株高的相关性进行了研究。

In vitro inoculation technology of Rhododendron fortunei L . with ericoid mycorrhizal fungi and its inoculation effect;2. Observation on Microstructure of Mycorrhizal Root of Rhododendron fortunei L .;3. In this experiment, Rhododendron fortunei L .

本文研究以云锦杜鹃幼苗以及自野生云锦杜鹃根系分离出的菌根真菌为材料，探索云锦杜鹃和菌根真菌形成菌株共生体的最佳接种体系及其菌根真菌和云锦杜鹃的组合效应研究，并根据效应筛选出优良的菌株，为菌根化苗促进生产提供技术基础。

Based on phenotypical and biochemical properties as well as its 16S rRNA gene sequence, the bacterium was identified as Paenibacillus polymyxa. In vitro antifungal spectrum assay vindicate that it was active against a broad range of phytopathogens and inhibited the growth of thirteen fungal pathogens.

采用对峙培养法筛选拮抗内生细菌，根据菌株形态、生理生化特性结合16S rRNA基因序列分析鉴定菌株；采用硫酸铵沉淀法提取抗菌粗蛋白，研究其对水稻恶苗病菌菌丝生长和孢子萌发的影响。

The major agronomic characters, morphology and the genetic stability of polyembryonic seedling of the mutant line were systematically investigated. The results are as follows. The agronomic characters of IR36-Shuang were obvious different with its parent IR36-4X. The plant height, panicle length, 1000 grain weight and the setting rate of the IR36-Shuang were lower than that of its parent by 35.41%、5.08%、15.72% and 12.39%, respectively.

对该突变株后代的主要农艺性状、多胚苗形态特征和遗传稳定性进行研究表明，突变株系与其原始亲本在主要农艺性状上存在明显差异，前者在株高、穗长、千粒重和结实率等性状上比后者分别下降35.41%、5.08%、15.72%和12.39%。

Autotetraploid rice IR36-4X was treated with ion implantation of low energy nitrogen ion beams and a polyembryonic seedling mutant IR36-Shuang was identified in M2 generation.

以低能氮离子束为诱变源，对同源四倍体水稻品系&IR36-4X&进行离子注入，在其第2代群体内筛选得到了1株具有多胚苗性状特征的突变株（IR36-双）。

The study is to improve the producing efficacy of AR vaccine. Toxigenic Pasteurella multocida.(Pm 13-1) was cultured in the 15L BIOSTAT.C fermentor with experimental parameters (Time, Air Flow, Speed of stir, and pH).

为提高猪传染性萎缩性鼻炎疫苗生产效率，采用工作容积15立升的BIOSTAT·C型发酵罐，培养经鉴定作为制苗菌株的产毒素多杀巴氏杆菌Pm 13-1株。

The experiment results showed the characteristics of the fermental Toxigenic Pasteurella multocida could meet the standard of producing AR vaccine in the colony morphology, toxin pathogenesis, and other aspects. The serotype of fermental Toxigenic Pasteurella multocida did not change.

实验结果表明，在适宜条件下D型产毒素Pm13-1株培养物符合其菌落、菌体形态特征；糖发酵实验结果符合其生化特性；其产毒素能力符合对制苗菌株产毒素、致病变能力的要求，且未发生血清型的变化。

Identification transgenic rye grass by PCR and herbicide spraying,there wcrc six transgcnic lines, and one of them was significantly different from control plants.T5 was with strong sprouts and long roots.

对转基因植株进行分子鉴定和除草剂Basta抗性实验，结果表明有六株转基因再生苗，其中五株是通过农杆菌介导转化后获得的。

Soil samples were collected from different ecological conditions. More than 70 Streptomyces hygroscopicus strains were isolated from the soil samples. Fermentation centrifugal supernatant of the strains were used as biocontrol agents to bioassay the seedling of rice and barnyard grass and rice pathogens of sheath blightand bakanae. Three strains showed good effects of inhibitingbarnyard grass seedling, the another three strains well inhibited the growth of rice pathogenic fungi.

从国内外不同生态条件下采集的土壤标本中分离到70多个吸水链霉菌，用其发酵离心上清液对水稻、稗草秧苗和稻纹枯病菌、恶苗病菌进行生物测定，结果有3个菌株对稗草根的生长具有较好的抑效果；有3个菌株对水稻病原菌有很好的抑制生长作用。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。