Utilizing peanut volatile organic compounds to quantify stress level during hydraulic redistribution


University of Florida

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Southeast (GA, FL, AL)

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This quarter we have finished all sample collections and completed measurement using the GC-MS system for all vials samples. This includes the 24 hour diurnal sample. We also have completed the measurement of the samples collected using Twisters withassistance from our colleague Dr. Dimandja at the FDA. From the data, it appears that the current Twisters are not suitable for collection of cyclohexane. This combined with the need of specialized equipment, of which we do not have access to, indicates that Twisters are not suitable for our collection and analysis at this time. We will therefore focus on the use of vials with SPME for future experiments and measurements. We have performed statistical analysis of all vial samples including the diurnal cycle and have started on the Twister samples. From the 24 hour collection it was shown, for this cultivar of peanut plant that the optimal time for collection of VOCs is between 2pm and 6pm.

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