growth regulator

• 一种通常为化学或激素类的物质，用于控制或改变植物、动物或细胞的生长和发育。

A substance, typically a chemical or hormone, used to control or modify the growth and development of plants, animals, or cells.

1. Plant growth regulatorC1formal

   A natural or synthetic substance that influences the growth and development of plants, such as hormones.

   植物生长调节剂

   • Gibberellins are a type of growth regulator that promotes stem elongation.
   • Farmers use growth regulators to control the size of fruit.
   • The application of growth regulators can improve crop yield.

2. Animal growth regulatorC1formal

   A substance used to control the growth rate or development of animals, often in agriculture.

   动物生长调节剂

   • Growth regulators are sometimes used in livestock to increase muscle mass.
   • The use of growth regulators in poultry is strictly regulated.
   • Scientists study growth regulators to understand animal development.