13
Question
Which one of the following is known as the stress hormone?
Which one of the following is known as the stress hormone?
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Solution
The correct option is A Abscisic acid
Abscisic acid (ABA) plays a role in how plants respond to weather stresses, such as cold and drought. By inducing dormancy, ABA helps seeds to withstand desiccation and other factors unfavourable for growth. This is the reason it is also called the stress hormone.
Ethylene promotes senescence and abscission of plant organs especially of leaves and flowers. Ethylene is highly effective in fruit ripening.
Gibberellins are promotory plant growth hormones that increase the length of the plant axis and delay senescence.
Abscisic acid (ABA) plays a role in how plants respond to weather stresses, such as cold and drought. By inducing dormancy, ABA helps seeds to withstand desiccation and other factors unfavourable for growth. This is the reason it is also called the stress hormone.
Ethylene promotes senescence and abscission of plant organs especially of leaves and flowers. Ethylene is highly effective in fruit ripening.
Gibberellins are promotory plant growth hormones that increase the length of the plant axis and delay senescence.
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