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"Sang Ik Han"

New Cultivar Developed

낟알이 부드럽고 더 굵은 흰색 찰기장 ‘연희찰’
‘Yeonheechal’: A Soft, Large, White, and Glutinous Proso Millet Variety (Panicum miliaceum L.)
Ji Ho Chu, Ji Yeon Ko, Seok Bo Song, Myeong Eun Choi, Sang Ik Han, Do Yeon Kwak
Korean. J. Breed. Sci. 2023;55(4):409-414.
Published online December 1, 2023
DOI: https://doi.org/10.9787/KJBS.2023.55.4.409

Proso millet (Panicum miliaceum L.) is a highly adaptive, short-duration crop that is grown in Korea for food, feed, and fodder. ‘Yeonheechal’ is a variety of proso millet that was developed in 2013. This variety is a cross between Hwanggeumgijang (K263691) and IT297382. In terms of its phenotype, ‘Yeonheechal’ is erect and possesses drooping panicles. Regarding its growth-related outcomes, ‘Yeonheechal’ was found to have a growth period of 90 days. The culm and panicle lengths of this variety were 144 and 33.6 cm, respectively. These structures were both shorter than those of ‘Leebaekchal.’ Additionally, the weight of 1,000 seeds was 5.3 and 4.5 g in terms of husked and dehusked grains, respectively. The husked and dehusked grains were white and yellow, respectively, consisting of a characteristically glutinous endosperm. The yield potential of ‘Yeonheechal’ was approximately 2.67-ton ha-1 in the regional yield trials conducted from 2017 to 2019. The hardness of this variety’s grain was 1,749 gf, making it softer than that of ‘Leebaekchal’ (i.e., 2,158 gf) (Registration number: 9104).

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저항전분 기능성 고아밀로스 벼 ‘도담쌀 (밀양261호)’
‘Dodamssal (Milyang261)’, Functional Rice as a Resistant Starch with a High Amylose Content
Jun Hyeon Cho, You Chun Song, Jong Hee Lee, Ji Yoon Lee, Young Bo Son, Seong Hwan Oh, Sang Ik Han, Chun Song Kim, Kuk Hyun Chung, Dong Soo Park, Jeom sig Lee, Un Sang Yeo, Do Yeon Kwak
Korean. J. Breed. Sci. 2019;51(4):515-522.   Published online December 1, 2019
DOI: https://doi.org/10.9787/KJBS.2019.51.4.515

‘Dodamssal’ was developed as a functional rice by means of a cross between ‘Goamibyeo’, a high amylose cultivar for noodle rice, and ‘Goami2’, a mutant cultivar derived from ‘Ilpum’ treated with N-methyl N-nitrosourea (MNU), with a high amylose content. The bulk population was displayed from F2 to F4, followed by pedigree methods from F5, where line selection was performed based on amylose mutants with an opaque endosperm. Finally, ‘Milyang261’, which has a high amylose content and high resistant starch content, was selected and named as ‘Dodamssal’ in 2013. ‘Dodamssal’ is a mid-maturing ecotype with a heading date of August 10, susceptibility to both viruses and insects, and showed a slightly high viviparous germination rate of 23.4%. The yield capacity of ‘Dodamssal’ was 529 kg/10a over a 3-year regional yield test and would be suitable for cultivation in the middle and southern plain areas of Korea. The amylose content of ‘Dodamssal’ is 42.8%, with a grain appearance of opaque endosperms. Moreover, the starch granule of ‘Dodamssal’ was a round particle shape, unlike the polygonal shape of the ordinary grain. ‘Dodamssal’ is functional variety with resistant starch and dietary fiber contents of 13.6% and 5.3%, respectively (Registration No. 5637).

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