根条件

Arbuscular mycorrhiza was the widespread reciprocal benefit symbiont in the natural ecosystem, this study aimed to introduce the AM fungus and the host plant as well as the effect of environmental condition on the formation mechanism, and propose several questions which need to be paid attention to both in current domestic and foreign research.

丛枝菌根是自然生态系统中广泛分布的互惠共生体。主要介绍了AM真菌和宿主植物以及环境条件对其形成机制的影响，并提出了当前国内外在丛枝菌根生理生态学等方面研究需要注意的几点问题。

So, we can get the properties of growth conditions of ginkgo hairy roots, and supply the large-scale factory production of ginkgo hairy toots with theoretical basis.

以便获得银杏悬浮发根快速增殖的最适培养条件，为银杏发根大规模工业化生产提供必要的理论基础。

Heated in water bath,uranyl ion and nitrate radical adsorbed on resin are replaced into solution by sodium bisulfate,then are determined by titanous method and spectrophotometry,respectively.

在水浴加热条件下，用硫酸氢根将吸附在树脂上的铀酰离子和硝酸根离子置换到液相中，之后分别采用亚钛法、分光光度法进行测定。

The results shows that the number of rhizosphere soil microbes in fixeddune and semifixed dune are aerophile bacteria）actinomyces） fungi.

研究了鄂尔多斯4种典型固沙植物柠条、沙柳、杨柴、油蒿在固定沙丘和半固定沙丘两种立地条件下根际土壤微生物数量、组成的季相变化，结果表明固定沙丘和半固定沙丘根际微生物数量为好气性细菌〉放线菌〉真菌。

Using colchicine for the induction of polyploidy plants is one of the ways of artificial induction. Colchicine, root length and light were selected as the influencing factors to induce polyploidy Amorpha optimal with the root tip smeared, to explore the optimal induction conditions for polyploidy Amorpha optimal.

用秋水仙素对植物进行多倍体诱导是人工诱导的方法之一，为了探究诱导紫穗槐多倍体的最优化条件，选取秋水仙碱，根长以及光照情况3个影响因素，对紫穗槐根尖进行涂抹处理诱导多倍体。

Proteoid roots or cluster roots: dense clusters of rootlets of limited growth that develop under low phosphate or low iron conditions in Proteaceae and some plants from the following families Betulaceae , Casuarinaceae , Elaeagnaceae , Moraceae , Fabaceae and Myricaceae .

排根或集束根源：在低密集群发展的根的生长的，有限的磷酸盐或低铁的条件眼科和一些植物从以下家庭的桦木，木麻黄，胡颓子科，桑科，豆科和杨梅科。

Using four different Na_2CO_3 concentration as simulating alkaline stress,the relative alkali damage rate of rice germinative energy and germination rate at germination period,RADR of rice root length,seedling height and root number at early seedling stage were looked as evaluation indexes,so the alkaline stress concentration for evaluation of alkaline tolerance at germination period and early seedling stage in rice was studied.

通过采用4种不同浓度的Na2CO3模拟碱胁迫，以水稻发芽期发芽势和发芽率的相对碱害率以及幼苗前期的根数、根长和苗高的相对碱害率为鉴定评价指标，研究水稻发芽期和幼苗前期耐碱性鉴定的碱胁迫条件。

The feedstuff was produced by using waste spent grains as the main raw materials and candida mycoderma, geotrichum candidum link and rh.

以大曲丢糟为主要原料，以假丝酵母、白地霉、根霉为生产菌，采用正交试验，得到最佳工艺条件为：丢糟∶麸皮=5∶1，假丝酵母∶白地霉∶根霉=1∶1∶2，在32℃下培养5d，得到的饲料营养丰富，易被动物吸收，是一种新型的饲料蛋白来源。

With the increase in Cu concentration in the solutions of the water culture, the plant height, biomass of the overground part, root length and weight of the vegetables decreased.

在水培条件下，随着铜添加浓度的升高，各蔬菜的株高、地上部生物量、根长和根重均逐渐降低。

Taking root suckers of Hippophae rhamnoides artificial population as the research object, based on the field investigation of produced number of clones, space distribution and growth condition, basic characteristics of ramet and relationship of environmental factors and root suckers were studied systematically in different habitats in Zhifanggou hilly-gully regions.

以沙棘人工种群根蘖萌苗为研究对象，通过对丘陵沟壑区纸坊沟流域不同生境沙棘人工种群根蘖萌苗，产生的无性系个数、空间分布和生长状况的调查，系统研究不同生境条件下沙棘人工种群的根系产生幼苗的基本特征及其与环境因素的关系。

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。