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
Ethylene is a
gaseous hormone
gaseous enzyme
liquid-gas mixture
solid hormone
A.
gaseous hormone
Ethylene is thought of as the aging hormone in plants. In addition to causing fruit to ripen, it can cause plants to die. It can be produced when plants are injured, either mechanically or by disease. Ethylene gas is used commercially to ripen tomatoes, bananas, pears, and a few other fruits postharvest
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
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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