Plant Hormone Applications

Question 1

Synthetic auxin

Answer 1

As selective herbicides for broadacre control in cereal crops as it kills divot not monocots

The auxins interfere with cell division which results in malformed leaves and stems

Question 2

Gibbereilliens

Answer 2

Seed germination

Gibbereillines to treat some seeds to break dormancy and promote uniform germination

Question 3

Ethylene

Answer 3

Is used to ripen fruit

Which avoids brushing during transport and minimises losses through over ripening

Question 4

Auxin

Answer 4

Is used to thin fruit crops

Reduced the number of fruit so those that remain are larger