Ag Science - Question 1 - Plant

In the case of a bulb, name the part of the plant that is modified.

• Leaf

• Stem

• Root

• Flower

In the case of a tuber, name the modified part of the plant.

• Leaf

• Stem

• Root

• Flower

Name a plant that grows from a bulb

• potato

• barley

• daffodil

• carrot

Name a plant that grows from a tuber.

• Potato

• Barley

• Dafodil

• Carrot

Seed potatoes are produced predominantly in Donegal because

• Windy

• Hot

• Low Aphid population

• High Ladybird population

How can plants from the family Compositae be identified?

• Leaf shape

• Many florets in the flower

• Flower has 4/5 petals

• Has a tap root

Pick a member of the family Compositae

• Perennial ryegrass

• Carrot

• Dandelion

• Dock plant

How is a member of the family Cruciferae identified?

• Many florets in the flower

• Leaf shape

• Floral parts mainly in 4's

• Presence of tendrils

Which plant is a member of the family Cruciferae (Brassicaceae)?

• Timothy

• Daisy

• Broccoli

• Potato

Why does Calcium ammonium nitrate (CAN) give more rapid growth response that urea?

• CAN is in a form that can be used by the plant

• Urea must be mineralized first

• CAN is easier to spread

• Urea must be carbonated first.