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Analysis of Morphological Characteristics Among Popcorn Inbred Lines

튀김옥수수 자식계통들에 대한 형태적 특성

  • Chang, Eun-Ha (Maize Experiment Station, Gangwon Agricultural Research and Extension Services) ;
  • Sa, Kyu Jin (Department of Applied Plant Sciences, College of Agriculture and Life Science, Kangwon National University) ;
  • Kim, Jong-Hwa (Department of Horticulture, College of Agriculture and life Sciences, Kangwon National University) ;
  • Lee, Ju Kyong (Department of Applied Plant Sciences, College of Agriculture and Life Science, Kangwon National University)
  • 장은하 (강원도 농업기술원 옥수수연구소) ;
  • 사규진 (강원대학교 농업생명과학대학 식물자원응용공학과) ;
  • 김종화 (강원대학교 농업생명과학대학 원예학과) ;
  • 이주경 (강원대학교 농업생명과학대학 식물자원응용공학과)
  • Received : 2013.04.10
  • Accepted : 2013.06.26
  • Published : 2013.09.30

Abstract

We evaluated the morphological characteristics of 79 popcorn inbred lines, which were developed to breeding popcorn variety at Maize Experiment Station, Gangwon Agricultural Research and Extension Services, by examining ten quantitative and three qualitative characteristics. In the survey of 3 qualitative traits for 79 popcorn inbred lines, most inbred lines respectively showed purple (46 inbred lines) at tassel color (QL1), green (55inbred lines) at silk color (QL2) and green (75 inbred lines) at stem color (QL3). While, on the survey of 10 quantitative traits among 79 popcorn inbred lines, they showed the morphological variation in plant height (QN1, $174.2{\pm}34.9$ cm), ear height (QN2, $103.4{\pm}24.7$ cm), ear length (QN3, $9.4{\pm}3.0$ cm), kernel setting length (QN4, $8.4{\pm}2.6$ cm), ear thickness (QN5, $24.9{\pm}7.7$ mm), ear row number (QN6, $14.0{\pm}2.3$ number), ear weight (QN7, $36.5{\pm}26.0$ g), kernel weight (QN8, $30.9{\pm}19.3$ g), 100 kernel weight (QN9, $10.4{\pm}3.8$ g) and germination rate (QN10, $95.3{\pm}8.1%$), respectively. As a result, 5 inbred lines (PS0-001, PS0-003, PS1-002, PS1-003, PS2-009) in the 79 popcorn inbred lines have showed comparatively high values for the five quantitative traits. On the principal component analysis, silk color (QL2), ear length (QN3), kernel setting length (QN4), ear thickness (QN5), ear weight (QN7), kernel weight (QN8) and 100 kernel weight (QN9) greatly contributed in positive direction on the first principal components, whereas tassel color (QL1), stem color (QL3), ear height (QN2) and ear row number (QN6) contributed in negative direction on the first principal component. In addition, plant height (QN1), ear height (QN2), and kernel weight (QN8) contributed in positive direction on the second principal component, and also tassel color (QL1), silk color (QL2), ear length (QN3), ear row number (QN6) and 100 kernel weight (QN9) contributed in negative direction on the second principal component.

본 연구는 강원도농업기술원 옥수수연구소에서 튀김옥수수 품종개발을 위하여 육성한 79개의 자식계통들에 대하여 총 13개의 양적 및 질적 형질들을 이용하여 형태적 변이 연구를 수행하였다. 3개의 질적 형질 중에서 웅수색(QL1)은 연한 자주색을 나타내는 계통(46계통)들이 가장 많았고, 자수색(QL2)과 줄기색(QL3)에서는 각각 녹색을 나타내는 계통(55계통, 75계통)들이 가장 많았다. 반면에 10개의 양적형질 중에서 간장(QN1)은 $174.2{\pm}34.9$ cm, 착수고(QN2)는 $103.4{\pm}24.7$ cm, 이삭장(QN3)은 $9.4{\pm}3.0$ cm, 착립장(QN4)은 $8.4{\pm}2.6$ cm, 이삭경(QN5)은 $24.9{\pm}7.7$ mm, 이삭열수(QN6)는 $14.0{\pm}2.3$ 열, 이삭중(QN7)은 $36.5{\pm}26.0$ g, 종실중(QN8)은 $30.9{\pm}19.3$ g, 백립중(QN9)은 $10.4{\pm}3.8$ g, 발아율(QN10)은 평균 $95.3{\pm}8.1%$를 각각 나타내었다. 분석에 이용된 자식계통들 중에서 5개의 자식계통(PS0-001, PS0-003, PS1-002, PS1-003, PS2-009)들은 조사된 7개의 수량 관련 형질들 중 5개 이상의 형질들에서 비교적 높은 경향이었다. 주성분 분석은 분석에 이용된 13개의 양적 및 질적 형질들 중에서 자수색(QL2), 이삭장(QN3), 착립장(QN4), 이삭경(QN5), 이삭중(QN7), 종실중(QN8), 백립중(QN9)은 제 1 주 성분에서 양의 방향에 크게 기여하였고, 반면에 웅수색(QL1), 줄기색(QL3), 착수고(QN2) 그리고 이삭열수(QN6)는 음의 방향에 크게 기여하였다. 제 2 주성분에서는 간장(QN1), 착수고(QN2) 그리고 종실중(QN8)은 양의 방향에 크게 기여하였고, 반면에 웅수색(QL1), 자수색(QL2), 이삭장(QN3), 이삭열수(QN6) 그리고 100립중(QN9)은 음의 방향에 기여하였다.

Keywords

References

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