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Revolutionizing crop care with new stress sensors

By Farms.com

Researchers at MIT and the Singapore-MIT Alliance for Research and Technology (SMART) have developed innovative sensors that can detect when plants are experiencing stress from environmental factors. These sensors are sensitive to hydrogen peroxide and salicylic acid, molecules that are key indicators of plant health.

The sensors, made from carbon nanotubes, are applied to plants in a solution that is absorbed through the leaves. They can emit a fluorescent signal that corresponds to specific stressors, allowing farmers to identify and address issues like heat, excessive light, or pest attacks much more quickly than traditional methods.

This rapid detection is crucial because it provides farmers with the opportunity to intervene before the stress causes significant damage to the plant. It represents a shift towards more proactive and preventive crop management, reducing losses and increasing efficiency.

The development of these sensors is part of a larger trend towards precision agriculture, where technology is used to enhance decision-making on the farm. These sensors stand out because they do not require genetic modification of the plants, making them suitable for use with a wide variety of crops. 

As the technology advances, the researchers aim to create "sentinel plants" that could serve as early warning systems, signaling the onset of stress to farmers automatically. This could lead to the development of automated systems that adjust farming conditions in response to data from the sensors, further optimizing agricultural practices.

This innovation has the potential to significantly alter how farmers manage plant health, making crop care more effective and responsive to the challenges posed by a changing environment.


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