지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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This study was conducted to investigate characteristics and variations of rice panicle traits for breeding temperate japonica varieties adapted to tropical environment. Eleven panicle traits were investigated from nine Korean rice varieties cultivated in Korea and wet season of the Philippines. Tested cultivars were composed of six temperate japonica varieties, three Tongil-type varieties, and one indica variety bred in the Philippines. The number of spikelets on secondary rachis branches (SRBs) was the most variable trait in both environments, while the mean number of spikelets on a primary rachis branch (PRB)was the least variable. Compared with PRB-related traits, SRB traits showed higher correlation with the number of spikelets per panicle. Compared with the plants grown in Korea, the number of spikelets on SRBs, the number of SRBs, spikelets, and rachis branches per panicle were decreased more than other traits in the Philippines. According to path analysis, the number of spikelets on SRBs per panicle affects the number of spikelets per panicle more than the number of spikelets on PRBs per panicle. Climatic factors such as growth duration, cumulative mean temperature, and integrated solar radiation were highly correlated with the relative rate of number of spikelets per panicle. To breed temperate japonica rice varieties adapted to tropical environment, it would be important to select lines which maintain proper growth duration and spikelets on SRBs in target region.
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참고문헌 (20)
참고문헌 신청
Chio HC / 1994 / A New Low-Tillering & Heavy-Panicle Type Rice Variety Adaptable to Direct Seeding “Nonganbyeo” / Korean J. Breed. Sci 26 : 451 ~ 452
Choi YG / 1997 / A new high yielding, disease resistant and lodging tolerant rice cultivar “Dasanbyeo” / RDA Journal of Crop Science 39 : 68 ~ 75
Flinn JC / 1984 / Trends in irrigated-rice yields under intensive cropping at Philippine research stations / Field Crops Research 9 : 1 ~ 15
Guillen-Portal FRS / 2006 / Compensatory mechanisms associated with the effect of spring wheat seed size on wild oat competition / Crop Sci 46 : 935 ~ 945
Ham YS / 1981 / A new early-maturing rice variety “Taebaegbyeo” / The Research Reports of the Office of Rural Development 23 : 35 ~ 42
Choi YG / 1997 / A new high yielding, disease resistant and lodging tolerant rice cultivar “Dasanbyeo” / RDA Journal of Crop Science 39 : 68 ~ 75
Flinn JC / 1984 / Trends in irrigated-rice yields under intensive cropping at Philippine research stations / Field Crops Research 9 : 1 ~ 15
Guillen-Portal FRS / 2006 / Compensatory mechanisms associated with the effect of spring wheat seed size on wild oat competition / Crop Sci 46 : 935 ~ 945
Ham YS / 1981 / A new early-maturing rice variety “Taebaegbyeo” / The Research Reports of the Office of Rural Development 23 : 35 ~ 42
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