求翻译：实验结果表明：烯效唑浸种后的烟株，在干旱条件下生长比在正常条件下生长时株高、叶面积和节间长值相对更低，而地下部鲜重和根冠比值相对高，由此表明烯效唑在干旱条件下有促进根部生长而抑制地上部分生长的作用，在烯效唑浓度为40ppm时最为明显；其抗旱机理是烯效唑提高了光合速率、可溶性糖含量、叶绿素含量，同时提高根系活力，以助于烟株在干旱条件下能更多的吸收水分，提高其抗旱性。除叶绿素含量外，各生理指标均在20ppm浓度时处理最佳是什么意思？

The results show that: uniconazole after soaking tobacco plants, grown under drought conditions than when grown under normal conditions, plant height, leaf area and internode length value is relatively lower, while the ground and shoot fresh weight ratio is relatively high , which showed that unicon

Experimental results show that after a flood of styrene monomer of Zolpidem, smoke trees grow in dry conditions than under normal conditions, high-growth area, and Section Chief among relatively more low value, and fresh-ground of relatively high ratio and the highest efficiency C20, demonstrating t