Day length is a key environmental cue regulating the timing of major developmental transitions in plants. For example. in perennial plants such as the long-lived trees of the boreal forest. exposure to short days (SD) leads to the termination of meristem activity and bud set (referred to as growth cessation). https://www.bekindtopets.com/hot-find-Synovex-One-Grass-Extended-Release-Implant-10-Dose-special-find/