Multiple Choice Questions'Climacteric' is
a phenomenon related to fruit ripening
the condition of a plant when all its fruits are almost ripe
the condition of a plant when most of its leaves have turned yellow
none of the above
The plants respond to photoperiods due to the presence of :
enzymes
stomata
phytochromes
phytohormones
Tendrils exhibit/twining of tendrils is due to
thigmotropism
seismonasty
heliotropism
diageotropism
Flowering dependent on cold treatment is
cryotherapy
cryogenics
cryoscopy
vernalisation
D.
vernalisation
Many plants have a vernalization requirement, that is, they actively repress flowering until after a period of prolonged cold, in order to align seed production with the favourable environmental conditions of spring. Vernalization occurs during the cold, but flowering only occurs many weeks or even months later when other specific conditions, including the presence of certain photoperiods and ambient temperatures, are also met.
Which of the following is called stress hormone?
Abscisic acid
Auxin
Cytokinin
Gibberellic acid
Vascular tissue in higher plants develop from which of the following
Procambium
Protoderm
Periblem
Cortex
The discovery of gibberellins is related with one of the following
blast disease of rice
rust disease of wheat
bakane disease of rice
early blight disease of potato
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