Which of the following factors is crucial to consider when selecting a film-forming anti-transpirant?

🔑Key Points:
-The effectiveness of a film-forming anti-transpirant can vary depending on the plant species, environmental conditions, and the specific formulation of the product.
-Factors like the thickness and permeability of the film, as well as its longevity, need to be considered.
-It's important to choose a product that is appropriate for the specific needs of the plant and the environmental conditions.