Question

Synthetic auxins are used for ..................

• A. Killing weeds
• B. Ripening fruits
• C. Increasing the size of the fruits
• D. Stimulating growth of shoot cells in tissue culture
• E. Preventing elongation of internodes

Answer 1

The correct option is A Killing weeds

Synthetic auxins like 2,4-dichlorophenoxy acetic acid and 2,4,5-trichlorophenoxy acetic acid act as weedicide. These herbicides generally mimic auxin. They are often called growth regulators because they upset the natural hormone balance in the plant. The synthetic auxins are used primarily to control broadleaf weeds in grass weeds in grass crops, pastures and turf. These include 2,4-dichloropweeds in grass crops, pastures, and turf.