Retractable roof houses are a fantastic tool for growers of tree seedlings since the roof can be closed to protect the crops from adverse weather conditions but retracting the roof when outdoor weather conditions are ideal ensures that the plants are properly acclimated to the outdoor environment.
Exposing the plants to outdoor conditions helps:
ensure an optimum root to shoot ratio
develop a more compact stem with a thick caliper
leaves develop a thick wax cuticle helping to reduce transplant shock while providing increased resistance to disease and insects
