Chemical Composition of Seed from Inbred Lines and Hybrids of Maize Recently Developed in Korea
2012
Son, B.Y., National Institute of Crop Science, RDA, Suwon, Republic of Korea | Kim, J.T., National Institute of Crop Science, RDA, Suwon, Republic of Korea | Lee, J.S., National Institute of Crop Science, RDA, Suwon, Republic of Korea | Baek, S.B., National Institute of Crop Science, RDA, Suwon, Republic of Korea | Kim, S.L., National Institute of Crop Science, RDA, Suwon, Republic of Korea | Ku, J.H., National Institute of Crop Science, RDA, Suwon, Republic of Korea | Hwang, J.J., National Institute of Crop Science, RDA, Suwon, Republic of Korea | Cha, S.M., National Institute of Crop Science, RDA, Suwon, Republic of Korea | Kwon, Y.U., National Institute of Crop Science, RDA, Suwon, Republic of Korea
This study was carried out to evaluate the quality properties, fatty acid composition and amino acid composition of major Korean inbred lines and hybrids of maize for corn breeding. Protein content of F₂ seeds was 9.0%, which was slightly lower than those of inbred lines, 11.4%, and F₁ seeds, 10.9%. in hybrid maizes. Lipid content of F₂ seeds of hybrid maizes was 4.2%, slightly higher than those of inbred lines, 3.3%, and F₁ seeds, 3.6%. However, there was no significant difference in ash content. The amount of linoleic acid in inbred lines, F₁ and F₂seeds of hybrid maizes was highest among all fatty acids and followed by oleic acid, palmitic acid, stearic acid and linolenic acid. The composition of saturated fatty acid of F₂ seeds was 17.6%, similar to F₁ seeds but it was lower than that of inbred lines. The composition of unsaturated fatty acid of F₂ seeds was 82.4%, similar to F₁ seeds but was higher than inbred lines. The content of leucine of F₂ seeds was lower than inbred lines and F₁ seeds. The content of valine, serine, threonine, cysteine, aspartic acid, lysine, arginine, histidine of F₂ seeds was higher than inbred lines and F₁ seeds. MMA (monoamino monocarboxylic acid) in inbred lines, F₁ and F₂ seeds of hybrid maizes was highest among all amino acids and followed by DMA (diamino monocarboxylic acid) and AAA (aromatic amino acid).
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