1. Plants produce phytohormones to regulate growth and development.
植物产生植物激素来调节生长和发育。

2. Phytohormones play a crucial role in plant response to environmental stimuli.
植物激素在植物对环境刺激的反应中起着至关重要的作用。

3. Different types of phytohormones, such as auxins and cytokinins, have specific functions in plant physiology.
不同类型的植物激素，如生长素和细胞分裂素，在植物生理学中具有特定的功能。

4. The balance of phytohormones in a plant can influence its growth pattern and overall health.
植物体内植物激素的平衡可以影响其生长模式和整体健康。

5. Researchers are studying the role of phytohormones in plant defense mechanisms against diseases and pests.
研究人员正在研究植物激素在植物抵抗疾病和害虫方面的作用。

6. Farmers can use synthetic phytohormones to manipulate plant growth and improve crop yield.
农民可以使用合成植物激素来操控植物生长，提高作物产量。