포장 특성이 우수한 고품질 복합내병충성 벼 품종 ‘드리미3호’ 육성

• 영문명: Breeding of “Drimi3ho” a High-Quality, Multi-Resistant Rice Cultivar having Excellent Field Agronomic Traits
• 발행기관: 한국육종학회
• 저자명: 장윤희 박재령 김은경 손재근 이강섭 김경민
• 간행물 정보: 『한국육종학회지』Vol.54 No.4, 385~394쪽, 전체 10쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2022.12.01

영문 초록

Rice is one of the most important food crops in the world, but brown planthopper (BPH, Nilaparvata lugens stal) causes a significant loss of rice yield. Due to climate change, different races of rice-damaging species are evolving at an accelerated pace, thus, creating a need to breed multi-resistant rice cultivars for a stable food supply. In 2001, “Samgang” and “Nagdong” were crossed at the Plant Molecular Breeding Laboratory of the Department of Applied Biosciences, Graduate School, Kyungpook National University, Daegu Korea. “Drimi3ho” is a resistant and high-quality rice cultivar that was bred by backcrossing a line having excellent agronomic traits with “Ilmi.” The heading date of “Drimi3ho” was August 12 (104 d after sowing), and it was a medium-maturing cultivar that matured 3 d earlier than “Ilmi” (August 15, 107 d after sowing). Its culm length was 81 cm, panicle length was 18 cm, panicle number per hill was 16, spikelet number per panicle was 113, ripened grain ratio was 93.2%, and 1,000-grain weight was 24.3 g. “Drimi3ho” was highly resistant to blast disease and bacterial blight (K1, K2, and K3), rice stripe virus, rice dwarf virus, rice black-streaked dwarf virus, and BPH. When “Drimi3ho” was milled, the milled grain was clear and transparent; moreover, the grains were semi-round and short-type. Moreover, “Drimi3ho” had lower protein and amylose content and tasted better than “Ilmi.” When “Drimi3ho” was grown on an ordinary plantation in the southern mountainous area, the yield was 563 kg/10a (Registration No. 5621).

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Rice Drimi3ho Brown planthopper Yield Grain quality