phototropic

例句：

1. 1. The plant is sensitive to light and grows best in the sun.
   这种植物对光线敏感，在阳光照射下生长得最好。
2. 2. The flowers have a phototropic response to changes in light intensity.
   这些花朵对光照强度的变化有光向性反应。
3. 3. The researchers found that plants with phototropic properties could be used for crop cultivation.
   研究人员发现具有光向性特性的植物可用于农作物种植。