Abstract
The respiration metabolism is an indicator of seed viability. The respiration process can be measured through the production of CO2 during the seed germination process. The respiration process can be measured through the production of CO2 during the seed germination process. This study aims to create a CO2 measuring device that can measure in real-time using a CO2 sensor and an IoT system. The study consisted of two experiments. The first experiment was to create a seed respiration measuring device using a CO2 sensor and an IoT system. The second experiment was to validate. The first experiment’s results were that a device can detect carbon dioxide levels automatically in the measurement range from 400 ppm to 5000 ppm. The device had online data storage through a database that can be monitored using the IoT system and is equipped with backup data storage using an SD card to avoid data loss in the cloud due to internet connection failure. The second experiment used a randomized complete block design. The treatment consisted of six levels of soybean seed viability (94.8%, 92.4%, 90.4%, 88.4%, 66.0%, 40.8% based on germination test). The results showed that the CO2 measurement could differentiate the viability of seeds.
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