

InterviewSolution
Saved Bookmarks
1. |
Cut or excised leaves remain green for long if induced to root of dipped inA. gibberellinsB. cytokininsC. auxinsD. ethylene |
Answer» Correct Answer - B In Richmond-Lang effect, cytokinin delays senescence of leaves. As cytokinin treated detached leaves rnmain green after a period of twenty days where as controlled leaves were completely yellow and drying at tips and margins It was concluded that cytokinin was able to postpone for a number of days the disappearance of chlorophyll and degradation of proteins that normally occur with the ageing process of leaves |
|