Question

Stem cuttings are often treated with NAA before sowing in order to promote

• A. Sprouting of buds
• B. Rooting
• C. Layering
• D. Development of adventitious buds

Answer 1

The correct option is B Rooting

Stem cuttings are often treated with NAA before sowing in order to promote rooting. NAA is known as naphthalene acetic acid. It is a synthetic auxin which promotes rooting in dwarf plants or stem. It also decreases the rate of senescence and abscission. It promotes respiration and increases the rate of metabolism. It also increases the sweetening in certain fruits.

So, the correct answer is option B.