跪求生物技术专业英语翻译！谢谢！

Abstract: to study the different concentrations of Mn2 + with soilless cultivation of Chinese cabbage seedlings after 4 days, 8 days, 12 days, the laid in the influence of the physiological and biochemical indexes.Results show that with the increase of concentration of Mn2 + stress fluid, Chinese cabbage seedlings of leaf chlorophyll content, Pro content and POD activity, presents the first trend, lowered later at low concentration has a certain role in promoting.Soluble sugar content and liquid Mn2 + stress concentrations showed a positive correlation relationship, as the stress concentration is increased, also showed a trend of rising.MDA content is presented after the first drop up trend, protein content and liquid Mn2 + stress concentration showed the relevant relationship.At low concentrations, Chinese cabbage using their own defense system to self-protection, end resistance to adverse environment, with the increase of stress concentration also, stress the extension of time, the Chinese cabbage is poison to the degree that the resistance to the limit, its defense system was damaged, causing toxic.The highest concentration of the experimental group, 12 days in stress, Chinese cabbage seedlings death.
Key words: Chinese cabbage seedlings;Mn2 +.Leaf blade;Physiological and biochemical indicators