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Effect of the Brittle-1 Sugary-1 Double Mutant Combination on Carbohydrate and Postharvest Quality of Sweet Corn¹

Whole kernels of the double mutant combinations of brittle-1 sugary-1 of maize (Zea mays L.) contain about 40 and 200% of the water-soluble polysaccharides and sucrose, respectively, of the sugary-1 mutant alone. More important, the double mutant preserves 90% of the sucrose even up to 4 days postharvest at room temperature. These features of the double mutant may offer a desirable new high quality sweet corn with the added potential for improving post-harvest quality.

Key Words: Zea mays L. • Endosperm mutants

² Associate Professor of Botany and Plant Pathology and Professor of Agronomy, Purdue University, West Lafayette, IN 47907.

Received for publication January 4, 1974.