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The inheritance of pericarp tenderness in sweet corn



The inheritance of pericarp tenderness in sweet corn



Journal American Society Agron 30(3): 220-231



Puncture tests were made on individual ears representing the 2 parents, the F1 and F2 generation, F3 lines, and backcrossed progenies to determine the mode of inheritance of pericarp tenderness in a cross between a tender pericarp variety and a tough pericarp Crosby inbred line. Additional data were also obtained from backcrosses used in the sweet corn improvement program in breeding for pericarp tenderness. Pericarp tenderness is shown to be inherited on a simple multiple factor basis. In certain crosses the F1 was somewhat tougher in pericarp; in other crosses approximately equal in pericarp toughness to the average of the parents. In the F2 of the cross studied in greatest detail, ears with puncture test values were recovered within the range of the 2 parents in populations of approximately 100 plants. Among the F3 lines and in the 1st yr. selfed progenies of backcrossed plants, strains were obtained as homozyguos as the 2 parents within the means of the parents as well as in intermediate recombinations. In the backcrosses used in breeding for improvement in pericarp tenderness, the results indicate that genes for pericarp tenderness can be transferred from tender to tough pericarp inbred lines.

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Accession: 013569510

Download citation: RISBibTeXText

DOI: 10.2134/agronj1938.00021962003000030007x


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