apical yellowing

例句：

1. 1.The apex of the tree is where the fruit grows.
   树的顶端是果实生长的地方。
2. 2.This disease causes apical yellowing in the leaves.
   这种病会导致叶子顶端变黄。
3. 3.The plant was affected by apical yellowing due to poor watering conditions.
   由于水分供应不足，植物受到了顶端黄化的影响。