자포니카 다수성 벼 드래찬과 보람찬 유래 약배양 계통을 이용한 이삭 및 수량 관련 형질 분석 및 다수성 계통 육성

• 영문명: Development of High-yielding Rice Lines and Analysis of Panicle and Yield-related Traits Using Doubled Haploid Lines Derived from the Cross between Deuraechan and Boramchan, High-yielding japonica Rice Cultivars in Korea
• 발행기관: 한국육종학회
• 저자명: 박현수(Hyun-Su Park) 하기용(Ki-Yong Ha) 김기영(Ki-Young Kim) 김우재(Woo-Jae Kim) 남정권(Jeong-Kwon Nam) 백만기(Man-Kee Baek) 김정주(Jeong-Ju Kim) 정종민(Jong-Min Jeong) 조영찬(Young-Chan Cho) 이점호(Jeom-Ho Lee) 김보경(Bo-Kyeong Kim) 안상낙(Sang-Nag Ahn)
• 간행물 정보: 『한국육종학회지』Vol.47 No.4, 384~402쪽, 전체 19쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2015.12.30

영문 초록

A doubled haploid (DH) lines derived from the cross between high-yielding japonica rice cultivars ‘Deuraechan’ and ‘Boramchan’ was developed to increase diversity of panicle and yield-related traits and select high-yielding lines. Panicle and yield-related traits of DH population consisting of 163 lines and 13 selected high-yielding lines were analyzed using correlation, principal component, and path analysis. Among panicle-related traits, number of spikelets on secondary rachis-branches (SRBs) was more highly correlated with and had more positive effect on number of spikelets (NS) than number of spikelets on primary rachis-branches (PRBs) per panicle. In the DH population, NS had the most positive effect on yield, whereas panicle number per hill (PN) was in the selected lines. PN was significantly positive correlated with ratio of ripened grain (RGG) in both case. The enhancement of ripening and increase of total spikelets number by increasing PN had more effect on yield than increase of total spiekelts number by increasing NS in the selected lines. Among 13 lines, four lines, AC60, AC152, AC156, and AC161 showed higher yield than Deuraechan (481 kg/10a) and Boramchan (558 kg/10a). Deuraechan exhibited panicle-weight type with low tiller and heavy panicles and Boramchan was slightly panicle-number type with more PN and higher RGG. Selected high-yielding lines showed medium characteristics of parents with improved yield potential. These elite lines could be utilized to develop high-yielding japonica rice.

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키워드

Rice Yield Panicle Trait Doubled haploid