Root Forms Test

Root Forms Test
Please fill out your email address in the first box and your name, ISA cert. no. & specialty in the second box. Answer the questions below and when you are finished, press submit.

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Question: 1. The taproot system:
is comprised of many lateral roots.
grows at many different angles.
is shallow and wide spreading.
develops from the primary root.

Question: 2. The fibrous root system:
penetrates deep in soil.
radiates from a common point at the base of the trunk.
is shallow, wide spreading, and numerous.
grows above the water line.

Question: 3. Prop roots:
have roots growing at many different angles.
originate at the base of the stem.
arise at stem nodes.
are often used for food storage.

Question: 4. Non-woody roots:
support and anchor the tree.
show annual growth rings.
grow vertically downward.
are found mostly in the upper few inches of soil.

Question: 5. Woody roots:
absorb water and nutrients.
are large lateral roots that form near the root collar.
have extensions called root hairs.
live for a short time.

Question: 6. Striker roots:
form spontaneously at the root collar.
have root hairs.
are distinct for each tree species.
function as water and food storage areas for the tree.

Question: 7. Adventitious roots:
have a corky characteristic.
possess mycorrhizae.
produce certain hormones.
develop as a result of injury or excessive soil and/or mulch against the trunk.

Question: 8. Buttress roots:
disappear after the seedling stage.
grow above the water line.
are adventitious woody shoots.
originate at the base of the stem.

Question: 9. Heart root systems:
grow a taproot as a seedling.
provide additional support for the plant.
can be pretty impressive structures.
have roots growing at many different angles.

Question: 10. Pneumatophores:
grow above the water line.
produce \"suckers\" from roots.
can \"fix\" nitrogen.
all of the above.

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