Crop improvement

Inheritance of kernel row number, a multicategorical threshold trait of maize ears

F. H. R. B. Toledo, Ramalho, M. A. P., Abreu, G. B., and de Souza, J. C., Inheritance of kernel row number, a multicategorical threshold trait of maize ears, vol. 10, pp. 2133-2139, 2011.

Information about the inheritance of threshold traits is scarce, especially in plants. We examined the genetic control of kernel row number in maize (Zea mays). Knowledge of this inheritance is especially important because it is a primary component of grain yield. This trait has a discontinuous distribution. Characters like these are conceptualized as threshold traits. Crosses were made between the inbred line Geneze 3 (G3) with many kernel rows and the inbreds Argentino IV (A4) and Dente de Cravo (DC), with fewer kernel rows.

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