종간교잡 유래 중생 다수성 벼 품종 화원 2호

• Published in: Korean journal of breeding Vol. 41; no. 3; pp. 342 - 345
• Main Authors: 안상낙(Sang Nag Ahn), 송미화(Mi Hee Song), 김동민(Dong Min Kim), 오창식(Chang Sik Oh), 강주원(Ju Won Kang), 박인규(In Kyu Park)
• Format: Journal Article
• Language: Korean
• Published: 한국육종학회 30.09.2009; The Korean Breeding Society
• Subjects: 농학; Interspecific cross; Hwaweon 2; Good quality; Oryza rufipogon; Rice
• ISSN: 0250-3360; 2287-5174

"화원2호"는 종간교잡을 통해 화성벼의 근동질계통을 육성하고자 '97년 화성벼와 O. rufipogon을 교배하고, 계속적인 여교배와 MAS를 병행 실시하여 CR121-1-1 계통을 선발하였다. 생산력검정 시험 결과 조사된 형질 중 천립중, 출수기, 간장, 수당립수 등에서 화성벼와 차이를 보이는 화성벼 근동질계통으로, 품종보호원 출원 조건에 부합하여 "화원2호"로 명명하고 품종보호원을 출원하였다. 화원 2호는 중간모본 혹은 분자연구를 위한 재료로서도 유 "Hwaweon 2" was developed from an interspecific cross between Hwaseongbyeo and a wild species, Oryza rufipogon L. (IRGC 105491) based on marker-aided selection. The recurrent parent "Hwaseongbyeo" is a high grain quality cultivar with medium-maturity. Hwaweon 2 is nearly isogenic to Hwaseongbyeo except a small O. rufipogon introgression on chromosome 9. This segment was associated with genes controlling a number of traits including grain weight, heading date, culm length, and spikelets per panicle. The preliminary and replicated yield trial was conducted at Chungnam National University in 2004, 2005 and 2006. The local adaptability test was carried out by the National Seed Management Office (NSMO) in 2007 and 2008. This cultivar was registered to NSMO with a cultivar designated as "Hwaweon 2". This cultivar averaged 98cm in culm length and has a medium to late growth duration. This variety is resistant to stripe virus as the recurrent parent. Milled rice of "Hwaweon 2" is translucent and the grain quality traits are comparable to those of the recurrent parent. The yield potential of "Hwaweon 2" in grain is about 7.68 MT/ha at the ordinary fertilizer level about 14% higher than that of Hwaseongbyeo due to increase in grain weight and spikelets per panicle.