萌发

DC.,which included sterilization of explants,the induction of callus and establishment of cell suspension culture system of Ardisia pusilla A.DC.,the examination on the process from the seed germination to mature plant,the discovery of "multi-embryo" phenomenon.

内容涉及：外植体消毒方法确定，愈伤组织诱导和悬浮培养，九节龙培养基硬度最适条件的确定，九节龙从种子萌发到成苗过程的观察，九节龙种子的&多胚现象&的发现。

Under natural environmental condition, the achenes of Arternisia sphaerocephala and Artemisia arenaria were treated with different electric intensity, to probe the variation of achene weight when the mucilaginous layer holds sand particles, the hydration and dehydration of the achenes, and the germination situation of mucilage-intact achenes and mucilage-free achenes.

用不同强度的电场处理沙生植物白沙蒿和沙蒿果实，在自然环境下研究电场作用后粘液物质将沙粒粘附于瘦果周围后瘦果重量的变化情况、果实水合与脱水情况、粘液果实及剔除粘液层的果实萌发情况。

The aim of the research was to establish asymbiotic germination and low-temperature in vitro conservation technique system of Cymbidium dayanum by using plant tissue culture technique to realize its rapid propagation and long-term conservation in vitro.

［目的］利用组培技术建立冬凤兰非共生萌发和低温离体保存技术，以达到快速繁殖和长期离体保存该植物的目的。

The ai mof the research was to establish asymbiotic germination and low-temperature in vitro conservation technique systemof Cymbidium dayanum by using plant tissue culture technique to realize its rapid propagation and long-termconservation in vitro.

利用组培技术建立冬凤兰非共生萌发和低温离体保存技术，以达到快速繁殖和长期离体保存该植物的目的。

With mature seeds of C. dayanum as explants, different media were selected to establish asymbiotic germination technique system With protocorms as materials, conservation, proliferation resumption and plant regeneration conditions were selected to establish low-temperature in vitro conservation technique system preliminarily. Mature seeds of C.

方法］以冬凤兰种子为外植体，选择不同培养基建立冬凤兰非共生萌发技术；同时利用原球茎为材料，选择低温离体保存，恢复增殖及植株再生条件，初步建立冬凤兰低温离体保存技术体系。

In order to raise efficiency of planting seedling by artificial spore culture of Athyrium multidentatum, in this article, spore of Athyrium multidentatum was taken as the explants, and used different categories of hormone, NaH2PO4 and AC during the period of tissue culture.

为了提高猴腿蹄盖蕨孢子人工培养成苗效率，以猴腿蹄盖蕨孢子为外植体，通过在组织培养中加入不同种类激素和NaH2PO4及活性炭，探讨了猴腿蹄盖蕨孢子萌发和成苗影响因素。

The results showed that both two autotoxic substances exhibited allelopathic promotion at low concentration and allelopathic inhibition at high concentration on pepper seed germination and seedling growth.

结果表明：这两种自毒物质对辣椒种子萌发和幼苗生长具有低浓度促进，高浓度抑制的化感效应。

Allelopathic effects of vanillin and cinnamic acid, two eggplant autotoxic substances, on pepper seed germination, seedling growth and mycelium growth of Fusarium oxysporum f.sp with different concentrations were studied in laboratory and bioassay experiments by a simulative way.

运用模拟的方式，采用生物测定和室内培养的方法，研究了两种茄子自毒物质香草醛和肉桂酸各浓度对辣椒种子萌发和幼苗生长的化感效应，及其对辣椒枯萎菌菌丝生长的影响。

The results suggested that the decomposing substances after cotton stalks returned to soil have autotoxic effect. Cotton seed germination and photosynthesis physiological activities were affected by decomposed substances of cotton stalks.

表明棉花秸秆还田后分解产生的化学物质具有一定的自毒效应，对连作棉花种子萌发、抗氧化物酶活性和光合生理造成影响。

Laboratory and greenhouse experiments were conducted to determine if the autotoxic effect is responsible for continuous cropping obstacle of chrysanthemum " Gaoyataizi" and the autotoxic effects of different parts from continuous cropping chrysanthemum on seed germination and seedling growth, cuttings rhizogenesis and the growth of potted-chrysanthemum "Gaoyataizi".

为此本论文旨在以连作障碍典型品种之一的'高压太子'为材料，采用室内生测及温室盆栽对菊花的自毒作用进行如下研究探讨：自毒作用是否是导致菊花连作障碍的因素之一；菊花不同部位水浸液处理对自身种子萌发、幼苗生长、扦插生根及盆栽菊花生长及其重要生理生化过程的自毒效应。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷