Summary
This research evaluated the response to three cycles of mass honeycomb selection based on the grain yields of widely-spaced plants from the F2 generation of a maize (Zea mays L.) single cross hybrid. Frequency distributions of individual plant yields in the selection plots showed strong positive skewness. A significant linear yield increase of 11.23% per cycle compared to the check was obtained. Correlated responses were the significant reduction in days to mid-silking, increases in ear and plant heights and in prolificacy. The selected population was similar to the original hybrid in days to mid-silking, ear and plant heights, but had significantly more ears per plant. It is concluded that mass honeycomb selection at wide spacings was effective in improving grain yield and prolificacy but may produce correlated responses in some other agronomic traits similar to those obtained with other selection schemes.
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Onenanyoli, A.H.A., Fasoulas, A.C. Yield response to honeycomb selection in maize. Euphytica 40, 43–48 (1989). https://doi.org/10.1007/BF00023295
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DOI: https://doi.org/10.1007/BF00023295