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In order to develop a core set and new corn variety in Korea, we evaluated the morphological characteristics of 194 maize accessions by examining eight quantitative characteristics. On the evaluation of quantitative traits for 194 maize accessions, they showed the morphological variations in tassel length (35.1±5.0 cm), plant height (226.1±33.7 cm), ear height (86.3±22.6 cm), stem diameter (2.3±0.6 cm), leaf width (9.3±1.1 cm), ear length (14.5±2.4 cm), ear row number (14.1±1.9 row), and 100 kernel weight (24.9±4.4 g). The results of principal component analysis (PCA) indicated that the tassel length, plant height, and ear height greatly contributed to positive direction on the first principal component axis. One-hundred kernel weight contributed to negative direction on the second principal component axis. Thus these morphological characteristics, which contributed greatly in the first and second principal components, might be useful for discrimination among 194 maize accessions. In our study, seven accessions, such as IT026357, IT026441, IT027321, IT033271, IT033591, IT033597 and IT124273, particularly were measured high on yield-related traits. Consequently, the 194 maize accessions used in this study could be used as promising materials for maize breeding programs such as development of new hybrid in Korea.
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참고문헌 (19)
참고문헌 신청
Aldrich SR / 1986 / Modern corn production / A&L. Publications Inc
Baute J / 2015 / Correlation analysis of the transcriptome of growing leaves with mature leaf parameters in a maize RIL population / Genome Biology 16:168
Cai H / 2012 / Identification of quantitative trait loci for leaf area and chlorophyll content in maize(Zea mays)under low nitrogen and low phosphorus supply / MolBreed 30:251~266
Frankel OH / 1984 / Genetics: New Frontiers, Vol IV / Oxford and IBH Publ. Co. :1~11
Kashiwagi T / 2008 / Improvement of lodging resistance with QTLs for stem diameter in rice (Oryza sativa L.) / Theor Appl Genet 117:749~757
Baute J / 2015 / Correlation analysis of the transcriptome of growing leaves with mature leaf parameters in a maize RIL population / Genome Biology 16:168
Cai H / 2012 / Identification of quantitative trait loci for leaf area and chlorophyll content in maize(Zea mays)under low nitrogen and low phosphorus supply / MolBreed 30:251~266
Frankel OH / 1984 / Genetics: New Frontiers, Vol IV / Oxford and IBH Publ. Co. :1~11
Kashiwagi T / 2008 / Improvement of lodging resistance with QTLs for stem diameter in rice (Oryza sativa L.) / Theor Appl Genet 117:749~757
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