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"‘Saebonghwang’"

New Cultivar Developed
중만생 고품질 직파 및 이앙 재배적응 벼 품종 ‘새봉황’
‘Saebonghwang’: A High Grain Quality Mid-Late-Maturing Rice Cultivar Adaptable to Direct Seeding and Transplanting Cultivation
Chang-Min Lee, Choon-Song Kim, Woon-Chul Shin, Man-Kee Baek, Hyun-Su Park, Jong-Cheol Ko, Jeong-Ju Kim, Jung-Pil Suh, O-Young Jeong, Keon-Mi Lee, Jeonghwan Seo, Song-Hee Park, Dongmin Back, Hyeonsoo Jang
Korean. J. Breed. Sci. 2024;56(2):147-159.
Published online June 1, 2024
DOI: https://doi.org/10.9787/KJBS.2024.56.2.147

‘Saebonghwang’ was developed as a mid-late ripening rice variety with good cultivation stability and yield in transplanting and under direct seeding cultivation. It was bred by backcrossing ‘Hopum’, which has excellent cultivation stability and adaptability to direct seeding, as a repeat parent, and ‘Hitomebore,’ a Japanese rice variety with excellent taste, as a donor. The heading date of ‘Saebonghwang’ was August 11 under ordinary planting, which is two days earlier than that of ‘Nampyeong’, and August 13 under wet-direct seeding cultivation, which is the same as that of ‘Dongan’. ‘Saebonghwang’ had a culm length of 74 cm under wet-direct seeding cultivation, which is larger than that of ‘Dongan’ (69 cm), and had good cultivation stability, including lodging resistance. ‘Saebonghwang’ is resistant to bacterial leaf blight and rice stripe virus and shows moderate resistance to rice blast. Furthermore, ‘Saebonghwang’ has better grain appearance, superior taste and better milling characteristics than ‘Nampyeong’. The yield of ‘Saebonghwang’ when cultivated under ordinary planting, wet-direct seeding, and double cropping was 5.65, 5.37, and 5.37 MT/ha, respectively. Under wet direct sowing by drone cultivation, ‘Saebonghwang’ showed good initial survival rate and cultivation stability. The yield was 4.49 MT/ha, slightly lower than that obtained under transplanted cultivation (5.03 MT/ha), but was not statistically different; therefore, ‘Saebonghwang’ was adjudged to be adaptable to drone wet-direct seeding. ‘Saebonghwang’ can be used in various ways to suit the working conditions of farms, increase farm work efficiency, and expand the area of wet direct-seeding cultivation (Registration No. 9171).

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