Genetic variation of phytate and ionorganic phosphorus in maize population
2009
Mladenovic-Drinic, S. | Ristic, D. | Sredojevic, S. | Dragicevic, V. | Ignjatovic-Micic, D. | Delic, N., Maize Research Institute Zemun Polje, Belgrade - Zemun (Serbia)
Analysis of 60 maize populations was conducted to identify genotypes that had either low or high concentration of phytate. Genetic variability in seed phytate content was observed, with values ranging from 1.147 to 4.13 g/kg. Inorganic phosphorus (Pi) concentrations were between 0.35 and 1.29 and averaged 0.65 g/kg. Three groups of populations were identified as having low, intermediate and high phytate content. The low phytate concentration was measured in eight, intermediate in 25 and high in 27 populations. Positive correlation was found beween phytate and protein. Population 216 had the lowest phytate concentration of 1.14 g/kg, and a Pi concentration 40% greater than Pi mean but lower than average protein content. This population will be used for further breeding genotypes with low phytate content and good agronomic traits.
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