the setting out of young trees in narrow, open-ended cylinders of various materials, e.g., polythene, bamboo, bark, veneer, palm leaves, in which they have been raised from seed or into which they have been transplanted —note 1. such cylinders are most commonly termed planting tubes, planting sleeves, or planting cylinders —note 2. tube planting is a type of container planting —see container nursery, container seedling, pot plantingThis definition last updated 10/10/2008