논문 상세보기
pp.445-451
‘소다미’는 소비료 재배 적응 중만생 고품질 내도복 복합내 병성 품종육성을 목적으로 2003년 하계에 단간 다수성인 ‘익 산469호’(‘온누리’)를 모본으로 하고 도열병에 강하고 초형이 양호한 조생종 운봉31호를 부본으로 인공교배하였다. 보통기 보비 재배에서 ‘소다미’의 출수기는 8월 16일로 ‘남평’과 같 고 간장, 수수 및 수당립수는 각각 81 cm, 12개 및 134개이며 등숙률은 86.8%였다. ‘소다미’는 내냉성 검정에서 냉수구 임 실률은 52%로 소비와 비슷하나 ‘남평’보다 높았다. ‘소다미’ 는 흰잎마름병(K1 ～K3), 줄무늬잎마름병에 강하고 잎도열병, 및 멸구류 등의 해충에 약한 품종이다. ‘소다미’의 쌀 외관은 심복백이 없이 맑고 투명하며, 단백질 및 아밀로스 함량은 각 각 6.0% 및 19.0% 로 ‘남평’ 및 ‘소비’보다 낮았다. ‘소다미’ 의 지역적응시험 3개년간 평균 쌀 수량성은 보통기 소비료 재 배에서 평균 5.2 MT/ha로 ‘소비’보다 3% 높은 경향을 보였 고, 보통기 보비재배에서 6.0 MT/ha로 ‘남평’보다 9% 증수하 는 품종이며 적응지역은 충남이남 평야지 및 남서해안지이다.
‘Sodami’ is a new high quality japonica rice variety developed from a cross between ‘Iksan469’ and ‘Unbong31’ by the rice breeding team of Rice Breeding and Cultivation Research Division, Department of Rice & Winter Cereal Crop, NICS, RDA. This variety is suitable for low level nitrogen fertilizer (LNF, 6kg/10 a) cultivation at ordinary season. The heading date of ‘Sodami’ was August 16th, the same that of ‘Nampyeong’ at ordinary season cultivation. Culm length of ‘Sodami’ was about 81 cm and this variety had 12 tillers per hill and 134 spikelets per panicle. Ripened grain rate of this variety was approximately 86.8%. The spikelet fertility of ‘Sodami’ was similar to that of ‘Sobi’ and higher than that of ‘Nampyeong’ by 26% when exposed to cold stress. ‘Sodami’ is resistant to bacterial blight and rice stripe virus but susceptible to blast disease and planthoppers. The milled rice of ‘Sodami’ exhibits translucent, clear non-glutinous endosperm and medium short grain. It shows lower protein content than that of ‘Nampyeong’ and ‘Sobi’. The milled rice yield of this variety was slightly higher than that of ‘Sobi’ by 3% as about 5.2 MT/ha in LNF cultivation at ordinary season but it was not significantly different and much higher by 9% as about 6.0 MT/ha than that of ‘Nampyeong’ in ordinary season cultivation in local adaptability test for three years. ‘Sodami’ could be adaptable to plain areas of south of Chungcheongnamdo and southwest coastal district of Korea.
