2.2.4 Application of exogenous gibberellins maintains flowers such as poinsettia short and compact. True or False

False.

Application of exogenous gibberellins promotes stem elongation and plant growth. Therefore, the application of gibberellins would not maintain flowers such as poinsettia short and compact, but rather lead to longer and taller plants.

True. The application of exogenous gibberellins can indeed help maintain flowers such as poinsettia short and compact. Gibberellins are a type of plant hormone that regulates various aspects of plant growth, including stem elongation. By applying gibberellins externally, it is possible to control the growth of plants and prevent excessive elongation, resulting in shorter and more compact plants with a greater abundance of flowers.