分蘖型 옥수수 交雜種의 世代進展에 따른 形質變異

• 영문명: Variation in advanced generation of maize hybrids with Tillers
• 발행기관: 한국육종학회
• 저자명: Lee Won Koo(李元九) Bong Ho Choe(崔鳳鎬) Hee Bong Lee(李喜鳳) Kwon Koo Kang(姜權圭)
• 간행물 정보: 『한국육종학회지』Vol.24 No.1, 61~67쪽, 전체 7쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 1992.03.30

영문 초록

Objectives of the present study were to find any phenotypic variations in the advanced generations of the crosses between a tillering IK inbred and non-tillering inbreds like Ci66, Hi26, Ga209, B77, FR1141, FR20A and FR140. Significant differences were found within F₁, F₂ and F₃ for all the characteristics studied. The tillering inbred, IK was lower in 100 kernel weight and smaller in ear size compared with other non-tillering inbreds. All the F₁ plants showed significant heterosis in the characteristics like plant height and kernel weight, even though all the F₁’s were lower in tiller number per plant. The reason for the lower number of tillers per plant in F₁ may be due to the apical dominance for plant height. Phenotypic variations including number of tillers per plant and 100 kernel weight were observed in F₂ and F₃ generations.

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키워드

Inbreeding depression Heritability Heterosis Correlation