한국 품종배경 Dian형 일대잡종벼의 수량 잡종강세

• 영문명: Yield Heterosis of Dian-type Hybrid Rice with Backgrounds of Korean Varieties
• 발행기관: 한국육종학회
• 저자명: 서학수(Hak Soo Suh) 이영선(Yeong Seon Lee) 김성수(Sung Soo Kim) 정재윤(Jae Youn Jung) 정승권(Seung Kwon Jeong) 이동선(Dong Sun Lee) 강상구(Sang Gu Kang)
• 간행물 정보: 『한국육종학회지』Vol.37 No.5, 282~287쪽, 전체 6쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2005.10.30

영문 초록

In order to investigate the heterosis for yield in Dian-type hybrid rice with the backgrounds of the Korean rice varieties, six hybrid combinations between the Dian type cytoplasmic male sterile(CMS) lines, Hwayeongbyeo A and Nonghobyeo A, and the three restorer lines, YA3414-3-1-1-1-1, YA3416-1-1-1-wx3-1 and YA3428-2-1-1-2-1 were grown at the Experimental Farm of Yeungnam University in 2004. Twenty plants in the six hybrids, two CMS and maintainers, and three restorer lines were planted with the space of 15 cm × 30 cm in a randomized block design with two replications. The yield components; number of panicles per hill, number of spikelets per panicle, spikelet fertility and 1,000 grain weight, and milled rice yield were evaluated from 10 plants in each plot. The number of panicles per hill and spikelet fertility of the hybrids in Hwayeongbyeo A combinations, and the number panicles per hill and spikelet fertility of the hybrids in Nonghobyeo A combinations were increased significantly than those of their parents respectively. However, one thousand grain weight of the hybrids was almost same as their parents in the six hybrids. The heterobeltiosis of milled rice yield of the hybrids ranged 114-128% in Hwayeongbyeo A combinations, and 175-208% in Nonghobyeo A combinations. The standard heterosis over the standard rice variety Hwayeongbyeo ranged 114-128% in the Hwayeongbyeo A combinations and 107-127% in the Nonghobyeo A combinations.

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키워드

Hybrid rice Dian Type Heterosis