Plant Growth and Development Question 65
65. Cut or excised leaves remain green for long if induced to root or dipped in
(a) gibberellins
(b) cytokinins
(c) auxins
(d) ethylene
Show Answer
Answer : b
Hints & Solutions
(b) Cytokinins help cells in retaining chlorophyll for longer time. Cytokinins delay the senescence (ageing) of leaves and other organs.
