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 also contains two other cell types: parenchyma and fibers. Xylem can be found: 1  in vascular bundles, present in non-woody plants and non-woody parts of woody plants. 2  in secondary xylem, laid down by a meristem called the vascular cambium in woody plants.he most distinctive xylem cells are the long tracheary elements that transport water. Tracheids and vessel elements are distinguished by their shape; vessel elements are shorter, and are connected together into long tubes that are called vessels.