Very full and bushy plant with many leaves and smelled nicely. Switched to flowering stage by changing the lights to 12/12 (2700k). Two day later, the plant leaves were drooping, curling inwards, drying out and tips were turning black. Other leaves were a bright green and now almost yellow. During veg stage plant was getting PH'd water and mixture of Grow Big and Big Bloom. On 5/9 plant got mixture of Tiger Bloom and Big Bloom.
The most distinctive cells found in xylem are the tracheary elements, that is tracheids and vessel elements. However, the xylem is a complex tissue of plants, which means that it includes more than one type of cell. This is why it is a tissue not a cell.
Xylem is a tubular structure which is responsible for water transport from the roots towards all of the parts of the plant. Phloem is also a tubular structure but is responsible for the transportation of food and other nutrients needed by plant. Xylem imports water and minerals while Phloem transports water and food. It is the principal water conducting tissue of vascular plants. 2  Xylem consists of tracheids, vessels, xylem parenchyma and xylem fibres. 3  Also ray parenchyma Also the xylem of softwoods (Gymnospermae) do NOT contain vessels. 4  It is a living complex permanent tissue. 5  Inner phloem is alive.