핵심집단 육성을 위한 옥수수 계통의 형태적 특성 연구

• 영문명: Analysis of Morphological Characteristics for a Core Set of 194 Maize Accessions
• 발행기관: 한국육종학회
• 저자명: 김오겸(O Gyeom Kim) 홍탁기(Tak Ki Hong) 고우리(Woo Ri Ko) 우수연(Su Yeon Woo) 마슐쥔(Shi Jun Ma) 박종원(Jong Won Park) 사규진(Kyu Jin Sa) 이주경(Ju Kyong Lee)
• 간행물 정보: 『한국육종학회지』Vol.48 No.2, 133~139쪽, 전체 7쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2016.06.30

영문 초록

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±22.6cm), 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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키워드

maize morphological variation principal component analysis core set maize breeding programs