BA sprays and pulses with a specific formulation of BA have also been effective in
delaying leaf yellowing (as well as flower senescence) of cut Solidago canadensis stems (16).
BA pulse (0.1 mM) and dip (1 mM) treatments were very effective in delaying yellowing of
detached Hosta plantaginea and Zantedeschia aethiopica leaves (14). The beneficial effects of
BA in suppressing yellowing are thought to be due to repression of respiration (20, 24).