New Leaf Sensor Alerts When Plants Are Thirsty - Science Nation

The video discusses a leaf sensor developed by Agra House with NSF support, which measures plant water needs by detecting leaf contraction. Originally intended for Mars missions, the technology offers significant water savings on Earth, reducing usage by 25% in tests. The sensor, applicable to various crops, is being developed into a wireless version by University of Colorado students, promising further efficiency in water management.

What is the primary function of the leaf sensor developed by Agra House?

• To increase plant growth rate

• To detect when plants need water

• To change the color of leaves

• To measure the diameter of leaves

Who initially developed the technology for the leaf sensor?

• Agra House scientists

• University of Colorado aerospace engineers

• National Science Foundation researchers

• NASA engineers

What was the original purpose of the leaf sensor technology?

• To reduce water usage in agriculture

• To improve greenhouse efficiency

• To assist astronauts in farming on Mars

• To monitor plant health on Earth

By how much did the Department of Agriculture reduce water usage using the leaf sensors?

• 25%

• 30%

• 10%

• 15%

What is the potential benefit of the wireless version of the leaf sensor?

• It can be used on Mars

• It increases plant growth

• It provides instant feedback to users

• It reduces the cost of sensors