MATERIALS & METHODSThree sweet corn (Zea muys L) genotypes, one cultivar each, were tested for sugar and soluble solids changes at 6°C for 5 days. Genotypes and cultivars were sugary (su), 'Silver Queen'; sugary enhanced (se), 'Incredible' and super sweet (sh 2), 'How Sweet It Is.' Fructose, glucose, sucrose, maltose, total sugars and "Brix were measured. Sucrose predominated. Generally, "Brix, fructose, glucose and sucrose decreased and maltose increased. sh 2 had lowest "Brix and highest sucrose and total sugars, and su had highest "Brix and lowest sucrose and total sugars. su consisted of 3.8% total sugars (DWB); se, 7.2% and sh 2, 10.9%. Overall correlation coefficient between "Brix and total sugars was -0.99.
Sweet cornWe measured "Brix, fructose, glucose, sucrose, maltose and total sugars in sweet corn (Zea muys L) kernels of three genotypes with one cultivar each. They were super sweet (sh 2), 'How Sweet It Is'; sugary (su), 'Silver Qieen', and sugary e&an&d (se), 'Incredible.'Researchers mew SC at Plant Science Field Laboratorv Knoxville. TN) and Plateau Experiment Station (Crossville, TN), i&g standard cultural and isolation practices. We harvested ears at milk stage during early morning and hydrocooled them in ice water to a cob temperature of 6°C.We placed 30 ears of SC from each genotype/location in waxcovered cardboard boxes to maintain high relative humidity and held them 5 days at 6°C. Five ears were selected daily from each lot and tested. Workers removed husks and silks, and for sugar analysis they cut and mixed together kernels from the mid-section of ears.