Light
What does light do for plants?
It helps them grow and develop into mature plants.
What percent are plants made of water?
90%
Carbon Dioxide
What temperature do plants like to grow in?
50-85* F
What is irrigation?
The mechanical process of adding water to plants/soil.
What does light do to plant leaves? (3 things)
It makes them change colors, fall off, and grow new leaves.
What happens when plants don't get enough water?
They dry out, wilt, and stop growing.
What do plants give us?
Oxygen
What is one way that temperature can control plants?
Making plants go dormant in the winter.
What is surface irrigation?
Using gravity to water plants.
Light quality refers to what?
Why do some plants like to grow in high-humidity environments?
Plants are made of 90% water and need water to stay alive.
What does humidity mean?
When there is moisture in the air.
What happens when a plant is in the cold for too long?
They get freeze injury.
What is drip irrigation? Why is it helpful?
Using a tube to take water to the roots of each plant. Prevents evaporation and runoff.
Light quantity refers to what?
The amount and time or duration of the light.
What happens when soil cannot hold any more water?
It will overflow, spill out, or not be able to hold it.
What can happen if there are too many plants in a greenhouse with no airflow?
There will be too much oxygen and not enough carbon dioxide.
What can you do to control the temperature of your plants?
Put them in a greenhouse, move them inside, and put them in a grow tunnel.
What is center pivot irrigation?
A tall sprinkler that moves on wheels in a circle pattern.
What is it called when plants need only a certain amount of light or darkness each day?
Photoperiodism
Not giving them too much water, stopping when water starts to come out of the pot, and dumping the extra water in the tray.
What can happen if plants have too much humidity in the air?
They can get diseases, change colors, droop, or even die.
What is it called when a plant gets too hot? (2 answers)
Sun-scald, heat stress
What is the best type of irrigation? Why?
You pick!