Plant phenotyping technologies have been developing rapidly over the last 2 decades. Plant sensors are becoming more accurate, faster, and easier to use. However, there are still bottleneck issues in plant sensing, including the changing environmental conditions, the plant’s diurnal activities, and the complicated Genotype-by-Treatment-by-Environment interactions. These issues keep plant phenotyping difficult and limit further application of the sensor technologies in precision agriculture. The Purdue Plant Sensor Lab has been working innovatively to develop the next generation sensor technologies to address these issues. In this seminar, Dr. Jin will firstly introduce the four new phenotyping facilities at Purdue and explain why they were built and how they’ve been successfully used in detecting diseases, nutrients deficiencies, and chemical damages. He will then introduce ABE’s most recent plant sensor technologies, including the awards winning handheld leaf scanner LeafSpec, and the new drone and ground-based robots for automatic field phenotyping in different scenarios. Dr. Jin will also share some discovery stories in plant phenotyping, such as how the plants change their colors over the hours during the day, and how to detect nutrient deficiency at an earlier time point. Dr. Jin will bring his LeafSpec device and give a demonstration at the end of the seminar.