The technique of growing plants, without soil in nutrient solution, is called
aquaculture
hydroponics
tissue culture
parthenogenesis
Gibberellins was first discovered by
Fisher
Bateson
kurosawa
Johanssen
Which of the following is a long day plant?
Avena sativa
Glycine max
Iberis durandii
Euphorbia pulcherrima.
Excessive elongation of plant stem is due to
IAA
auxin
cytokinin
gibberellin
The hormone present in the liquid endosperm of coconut is
ethylene
Phytochrome becomes active in
darkness
red light
blue light
green light
Thigmotropism is best exhibited by
root apex
tendrils
thorns
lamina
Which of the following is the stress hormone?
IBA
ABA
2, 4-D
The arrangement of leaves on the stem is called
prefoliation
phyllotaxy
leaf base
stipules
Opening of flower and dropping of bud is an example of
hyponasty
epinastic movement
phototatic movement
movement of curvature
