The Richmond-Lang effect is concerned with:

Cytokinins are said to be anti-ageing hormones because they delay senescence by:

$F$. Skoog discovered

$A$ hormone delaying senescence is

Which of the following functions is/are not the function$(s)$ of cytokinin?
$I.$ New leaves formation
$II.$ Chloroplast formation in leaves
$III.$ Lateral shoot formation
$IV.$ Adventitious shoot formation
$V.$ Rooting on stem cuttings
Choose the correct option.

Which hormone increases shoot growth in callus culture?