culm hybrid dwarfness

例句：

1. 1. The new variety of wheat has been developed to be more resistant to diseases and pests.
   这种小麦新品种被开发出来，以更抗疾病和害虫。
2. 2.The researchers are trying to identify the genes responsible for the dwarfing effect in the plant.
   研究人员正在尝试识别导致植物矮化的基因。
3. 3. The dwarfing effect is a common feature of many plants that have evolved to survive in harsh environments.
   矮化效应是许多适应恶劣环境生存的植物的常见特征。