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2019 Vol.64, Issue 2 Preview Page

Original Research Article

Screening for Fittest Miscellaneous Cereals for Reclaimed Land and Functionality Improvement of Sorghum bicolor Cultivated in Reclaimed Land

간척지 적응성 잡곡 선발 및 간척지 재배 수수의 기능성 향상 효과

Chan Ho Kang1*
,
In Sok Lee1
,
Suk Ju Kwon2
강 찬호1*
,
이 인석1
,
권 석주2
1Researcher, Crops & Food Division, Jeollabuk-Do Agricultural Research and Extension Services
2Division Chief, Jeollabuk-Do Agricultural Research and Extension Services
1전라북도농업기술원 작물식품과 농업연구사
2전라북도농업기술원 농업연구관
* Corresponding Author
30 June 2019. pp. 109-126
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Abstract

Genetic resources of 84 species of Setaria italica BEAUVOIS, Sorghum bicolor, and Panicum miliaceum were collected to select the adaptable miscellaneous cereals in Saemangeum reclaimed land. The adaptability of Sorghum bicolor in reclaimed land was the highest among the three cereals cultivated on reclaimed land. The ratio of the average height of Sorghum bicolor plants cultivated in reclaimed land/normal field was 0.82, that of Panicum miliaceum was 0.61, and that of Setaria italica BEAUVOIS was 0.51. Three species of Sorghum bicolor, Satangdajuk, Kkamansusu, and Nampungcharl, were selected as potential genetic resources as they had excellent adaptability to reclaimed land. The yield of Satandaejuk on reclaimed land was 229.4 kg/10a, and the yield ratio of reclaimed land/normal field was 89.3%. The yield of Kkamansusu was 227.4 kg/10a, with reclaimed land/normal field ratio of 87.8%, and yield of Nampungcharl was 239.6 kg/10a, and reclaimed land/normal field ratio of 86%. In order to study the salt tolerance of selected genetic resources, we conducted salinity test. Salinity tolerance of Sorghum bicolor species-Satangdajuk, Kkamansusu, Nampungcharl was excellent compared to that of the other cereals. Among these, Satandaejuk had to highest salt tolerance level. Polyphenols, flavonoids, and detoxification of free radical were also studied. The anti-diabetic property of the cereals was also analyzed by α-glucosidase inhibitory activity. We confirmed that the functionality of 3 lines in reclaimed land had improved in all the functional analysis categories when compared to that with yield in the normal field. Polyphenol, an antioxidant, increased in the range of 2~26% when cultivated in reclaimed land and the flavonoid content also increased from 8.5 to 55.6%. DPPH elimination capability, the ability to scavenge harmful reactive oxygen, also increased from 16.7 to 47% when cultivated in reclaimed land. The anti-diabetic activity and α-glucosidase inhibition activity of selected Sorghum bicolor species-Satangdajuk, Kkamansusu, Nampungcharl also increased from 18.4 to 19.9% when cultivated on reclaimed land.

Keywords
functionality
Panicum miliaceum
reclaimed land, salinity tolerance
Setaria italica BEAUVOIS
Sorghum bicolor
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Information
  • Publisher :The Korean Society of Crop Science
  • Publisher(Ko) :한국작물학회
  • Journal Title :The Korean Journal of Crop Science
  • Journal Title(Ko) :한국작물학회지
  • Volume : 64
  • No :2
  • Pages :109-126
  • Received Date : 2019-03-29
  • Revised Date : 2019-05-18
  • Accepted Date : 2019-05-23
  • DOI :https://doi.org/10.7740/kjcs.2019.64.2.109
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