Excessive elongation of plant stem is due to
IAA
auxin
cytokinin
gibberellin
A sleep movement in plants is a nastic response, that occurs daily in respose to
dark
light
water
both '1' and '2'
Removal of seed coat in dormant seeds, by mechanical methods, is called
separation
vernalization
emasculation
scarification
The hormone, which causes stunted growth in pea, is
ethylene
abscisic acid
Seedless water-melons are obtained by
haploidy
triploidy
gibberellin application
vegetative propagation
The hormone, which controls cell division and cell differentiation is
ABA
In plants, the induction of flowering, by low temperature treatment, is called
pruning
cryobiology
photoperiodism
Abscisic acid controls
cell division
shoot elongation
leaf fall and dormancy
cell elongation and cell wall formation.
Genetic dwarfness can be overcome by treating it with
anti-gibberellin
cell elongation in internodal regions of the green plants takes place due to
indole acetic acid