根条件

Under different culture conditions CAT activity in the cotyledons and radicles had a tread of decrease with prolongation of culture time, while POD activity had a tread of increase.

不同培养条件下，随着培养时间的延长，子叶和胚根中的过氧化氢酶活性呈下降趋势，而过氧化物酶活性呈上升趋势。

It was found that the highest PAO activities in embryonic axes and radicles of the peanut seedlings occurred in day 4 and day 5 respectively after germination in dark. Additionally, the extraction medium of peanut PAO was 0.1 mol/L phosphate-buffered saline （pH 7.0）, containing 0.5 mol/L NaCl and 1 % polyvinylpyrrolidone.

结果表明：黑暗条件下萌发的花生幼苗，其胚根和胚轴的PAO活性分别在萌发后的第4 d和第5 d出现一个峰值；含1 % PVP和0.5 M NaCl的磷酸缓冲液（0.1 mol/L，pH 7.0）用作花生PAO分离提取液可得到较好的提取效果。

It was found that the highest PAO activities in embryonic axes and radicles of the peanut seedlings occurred in day 4 and day 5 respectively after germination in dark. Additionally, the extraction medium of peanut PAO was 0.1 molL phosphate-buffered saline （pH 7.0）, containing 0.5 molL NaCl and 1 % polyvinylpyrrolidone.

结果表明：黑暗条件下萌发的花生幼苗，其胚根和胚轴的PAO活性分别在萌发后的第4 d和第5 d出现一个峰值；含1 % PVP和0.5 M NaCl的磷酸缓冲液（0.1 molL，pH 7.0）用作花生PAO分离提取液可得到较好的提取效果。

Karyotypes of root tip chromosome showed that the arm volume ratio, the mean relative volume and idiogram were identical before and after improving seed vigor, so the pattern of chromosome did not change. But we couldnt confirm whether the pattern of other separation dates and the inner structure varied in this experiment, such as gene mutation.

根尖染色体核型分析结果，甘蓝种子在活力提高前后染色体的臂比值相同，相对长度相同，表明活力提高后染色体在形态及核型上无明显变化，而对于除中期外的其它分裂期染色体的形态特征以及染色体内部结构有无明显变异在本试验条件下尚不能确定。

From 18 species of host plants including cotton, eggplant, horseradish, broad bean etc.distributed in Jiangsu, Shandong, Siehuan, Liaonin, Hebei and Inner Mongolia were inoculated on seedlings of eggplant and tomato at room temperature to test their virulence differentiation.

自江苏、山东、四川、辽宁、河北及内蒙古等省的棉花、茄子、辣根，蚕豆等18种植物上分离的大丽轮枝菌，在温室条件下，测定了对茄子、番茄幼苗的致病力分化。

The effects of root-divided alternative irrigation on growth, physiological characteristics and yield of flue-cured tobacco were studied under artificial water control by FDR.

利用射频反射仪，在人工控水条件下研究了分根交替灌溉对烤烟生长发育、生理特性及烟叶产量和品质的影响。

In order to investigate the theoretical foundation of irrigation method for tobacco production with water saving and quality regulating, the effect of alternate partial root-zone irrigation on leaf physiological characteristics, water use and main quality indices of flue-cured tobacco during different growth stages under two fertilization levels was studied in a pot experiment.

为寻找烟田节水调质灌溉方式的理论依据，本文通过盆栽试验研究了两种施肥条件下，不同生育时期分根区交替灌溉对烤烟生理特性、水分利用以及主要品质指标的影响。

The Plant tissue raise is the plant sterile culture technology, has the totipotency theory according to the vegetable cell, the use plant body exsomatize organ (for example root, stem, leaf, stem point, flower, fruit and so on), the organization (for example cambium, epidermis, cerebral cortex, marrow department cell, endosperm and so on) or the cell (for example big spore, small spore, somatic cell and so on) as well as the protoplast, in aseptic and suitable artificial culture medium and illumination, temperature and so on under artificial condition, can induce injuries the organization, not to decide the bud, the adventitious root, finally forms the complete adult plant the discipline.

植物组织培养即植物无菌培养技术，是根据植物细胞具有全能性的理论，利用植物体离体的器官(如根、茎、叶、茎尖、花、果实等)、组织（如形成层、表皮、皮层、髓部细胞、胚乳等）或细胞（如大孢子、小孢子、体细胞等）以及原生质体，在无菌和适宜的人工培养基及光照、温度等人工条件下，能诱导出愈伤组织、不定芽、不定根，最后形成完整的植株的学科。

The effect of root cutting and potassium application at topping on yield and quality of flue-cured tobacco was studied with different nitrogen application rates in the field.

通过田间试验研究了不同施氮量条件下打顶时断根并追钾对烟叶产质量的影响。

The application of root cutting in winter wheat cultivation practice.

研究结果表明，断根可以促进小麦的生长发育，提高肥料利用率，增加产量，改善品质；并可在不降低产量的条件下，减少肥料投入，保护生态环境。

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。