Characteristics on Growth and Amino Acids composition of Quality Protein Maize lines
2017
Bae, H.H., NICS, RDA, Suwon, Republic of Korea | Son, B.Y., NICS, RDA, Suwon, Republic of Korea | Kim, J.T., NICS, RDA, Suwon, Republic of Korea | Lee, J.S., NICS, RDA, Suwon, Republic of Korea | Baek, S.B., NICS, RDA, Suwon, Republic of Korea
To date, many researches have been done for maize QPM lines, there is little maize QPM varieties in Korea. In this reason, to develop maize QPM cultivars, investigation of the growth characteristics and amino acid composition among QPM inbred lines was carried out. For this study, QPM inbred lines were donated from CIMMYT. Analyses of growth characteristics changes for each line were investigated. The range of siliking days were ranged from 60 to 69 days. Silking days for 4 QPM lines such as CML140, CML141, CML152, and CML493 were 60 days among donated QMP lines, CML557 was 69 days. In plant height, CML492 was shortest(152 cm) while CML143 was the longest(295 cm). The ear height of CML492 was 66 cm and 175 cm for CML143. Protein content of each maize QPM grains was from 9.07% to 12.67%. CML556 have the highest proteins content, while CML493 was the lowest among maize QPM grains. Content of fat was from 3.38% to 5.25%, and CML141 was the lowest and CML147 was the highest. The content of ash ranged from 1.22% to 1.78%, CML555 was the least and CML142 was the highest. The content range of carbohydrate was from 71.7% to 75.5%, CML557 was the least and CML493 was the highest. The calories of each inbred line ranged from 346 to 365 Kcal, CML140 was the least and CML492 was the highest. Major amino acid composition in maize QPM grain is glutamic acid (16.34%), proline (9.80%). The mean of lysine composition was 3.64%, and CML140 showed the highest ratio of 4.34%.
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