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| Graduated Students | |
| Mohammed
Saleh Alshitawi MS Student Department of Agricultural and Biosystems Engineering Phone: (520) 272 8499 alshitawi@hotmail.com |
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| Research | |
Monitoring EC Effects on Greenhouse Tomatoes with Remote Sensing Mohammed Al-Shitawy, MS Student, Agricultural and Biosystems Engineering Update: In this research, the ability of reflectance sensors to detect plant response to EC treatments is under evaluation. A track was constructed that carries a multispectral sensor between two rows of tomato plants in the greenhouse. Four reflectance bands (blue, green, red, and NIR) and one thermal band (TIR) are used to detect plant response to salinity. The reflectance measurements show a significant response to salinity over time. Spatial variation of reflectance measurements is under evaluation, and measurements will also be correlated with in-situ plant measurements. A thermal radiometer is also carried by the cart in order to measure temperatures of plants in the different salinity treatments. An attempt will be made to find relationships between salinity treatments, air temperature, and plant temperature. In addition to the visible, near infrared, and thermal ranges in the greenhouse, some tomato leaves are harvested each week and are evaluated for absorbance between 1100 and 2500 nm in the laboratory. Cooperators:
Dr. Peter Waller, Dr. Chieri Kubota, and Dr. Gene Giacomell |
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