Question

the plant hormone used to destroy weeds in a field is

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Answer 1

Auxin is the one of the plant hormones.The main function is to help plants grow and auxin stimulates plant cells to elongate .

Auxin promotes cell growth and elongation of the plant. In the elongation process,The apical meristem of a plant is one of the main places where auxin is produced, auxin alters the plant wall plasticity making it easier for the plant to grow upwards. Auxin also influences rooting formations, Auxins are  used: as weed killers.

Answer 2

The plant hormone used to destroy weeds in a field is a synthetic Auxin, called 2,4-D.

• 2,4-D is chemically knowns as 2, 4 dichlorophenoxyacetic acids.
• It is a synthetic auxin i.e chemical analogues of the Phytohromone Auxin,  used to destroy weeds.
• This weedicide is effective only to broadleaf weeds and dicots but not for any monocots.
• When a concentrated amount of 2,4-D is applied to the target, the tissues ultimately show unsustainable and lethal growth.
• It is also a systemic herbicide that kills the whole plant when getting absorbed and transported via the vascular system of the plant.
• It was also a component in Agent Orange that was sprayed during the Vietnam war as part of a herbicidal warfare program by the U.S. military, thus destroying many crops feeding the Vietnam troops.