ripening stage

例句：

1. 1.The plant is in the ripening stage, ready to be harvested.
   这植物正处于成熟阶段，准备收获。
2. 2.The farmer carefully monitored the ripening stage of the fruit.
   农民仔细监控了水果的成熟阶段。
3. 3.During the ripening stage, the plant absorbs nutrients from the soil.
   在成熟阶段，植物从土壤中吸收养分。