The hormone present in the liquid endosperm of coconut is
auxin
ethylene
gibberellin
cytokinin
The molar ratio of carotene and xanthophyll is
3:1
2:1
4:1
1:1
A pigment, which absorbs red and far-red light is
Carotene
phytochrome
cytochrome
xanthophyII
The technique of growing plants, without soil in nutrient solution, is called
aquaculture
hydroponics
tissue culture
parthenogenesis
Gibberellin is obtained from
Alternaria solani
Fusarium moliniferum
Gibberella fujikuroi
phytopthora infestans
Phytochrome becomes active in
darkness
red light
blue light
green light
The leaves of Mimosa pudica drop down, When touched, due to
photonasty
seismonasty
nyctinasty
epinasty
cell elongation in internodal regions of the green plants takes place due to
indole acetic acid
Growth movements, in response to light, are called
photolysis
phototropism
photoperiodism
photosynthesis
Excessive elongation of plant stem is due to
IAA