Carbohydrate and enzymic characterization of a high sucrose sugary inbred line of sweet corn |
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| Authors: | Gonzales J W Rhodes A M Dickinson D B |
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| Affiliation: | Department of Horticulture, University of Illinois, Urbana, Illinois 61801. |
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| Abstract: | Reserve carbohydrates were determined on developing endosperm of a new line of sugary maize (Zea mays L.). Other entries, included for comparative purposes, were Midway (sugary), Funks G4646 (starchy), and Illini X-tra Sweet (shrunken-2). Sucrose in the new line, Illinois 677a, was more than twice that of Midway at most stages of development, and reached a maximum of 40% of dry weight at 18 days after pollination. Appreciable phytoglycogen accumulated in Illinois 677a, reaching 30% or more of dry weight as endosperm tissue matured. Thus, Illinois 677a is a typical sugary maize concerning phytoglycogen content, but it resembles shrunken-2 concerning the extent of sucrose accumulation. |
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