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2024 Vol.37, Issue 4 Preview Page

Research Article

Screening of Valuable Naked Oat (Avena sativa L.) Germplasms through Comparison of Agronomic Traits

주요 농업형질 비교를 통한 쌀귀리 유용 유전자원 탐색

Jin-Cheon Park1
,
Chang-Hyun Lee1
,
Young-Mi Yoon1
,
Yu-Young Lee2
,
Myoung-Jae Shin3
,
On-Sook Hur4
박 진천1
,
이 창현1
,
윤 영미1
,
이 유영2
,
신 명재3
,
허 온숙4
1Researcher, Crop Breeding Division, National Institute of Crop Science, RDA, Wanju 55365, Korea
2Senior Researcher, Crop Post-harvest Technology Division, National Institute of Crop Science, RDA, Suwon 16613, Korea
3Researcher, Agrobiodiversity Center, National Institute of Agricultural Science, RDA, Jeonju 54874, Korea
4Senior Researcher, Crop Breeding Division, National Institute of Crop Science, RDA, Wanju 55365, Korea
1국립식량과학원 작물육종과, 연구사
2국립식량과학원 수확후이용과, 연구관
3국립농업과학원 농업유전자원센터 연구사
4국립식량과학원 작물육종과, 연구관
*Corresponding Author
1 August 2024. pp. 411-422
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Abstract

Naked oat is particularly vulnerable to cold weather among cereal crops, and frequent lodging due to their long culm length. Also it is difficult to cultivate in double cropping system with rice because of late maturity in Korea. In this study, we charaterized 71 naked oat germplasms including two control varieties with agronomic traits, to select superior resources and use them for the improvement of exsiting varieties. The maturity date was May 26th for ‘Joyang’ and June 1st for ‘Daeyang’, and there were 5 resources including IT302003, which was earlier than Daeyang. In the case of culm length, the distribution ranged from 62 to 124 ㎝, and there were 13 resources, including IT209241, that were shorter than ‘Joyang’ (84 ㎝) and ‘Daeyang’ (83 ㎝). In correlation analysis of agronomic traits, the highest positive correlation (r=0.89) was observed between days to heading and days to maturity. In addition, culm length and spike length (r=0.72) and days to heading (r=0.50) showed a positive correlation. However, Barley yellow dwarf virus(BYDV) and grain yield (r=-0.30), lodging tolerance and liter weight (r=-0.37) showed a negative correlation. Cluster analysis, resources with similar traits such as liter weight, husk ratio, days to heading, and days to maturing were subclassified. Through this analysis, 6 resources, including IT302002 (X345-1-B4-20-1), which had short culm length, early maturity, and cold tolerance compared to ‘Joyang’ and ‘Daeyang’, were selected. Among the selected excellent resources, the avenanthramide content of the four resources was IT302002 (325.18 ㎍/g), K000010 (557.3㎍/g), K253299 (447.33 ㎍/g), and K253301 (440.49 ㎍/g), respectively, which was higher than ‘Daeyang’ (301.97 ㎍/g). These excellent resources will be used as breeding materials for the development of new varieties in the future.

Keywords
Agronomic traits
Comparison
Germplasm
Naked oat
Screening
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Information
  • Publisher :The Plant Resources Society of Korea
  • Publisher(Ko) :한국자원식물학회
  • Journal Title :Korean Journal of Plant Resources
  • Journal Title(Ko) :한국자원식물학회지
  • Volume : 37
  • No :4
  • Pages :411-422
  • Received Date : 2024-02-20
  • Revised Date : 2024-04-19
  • Accepted Date : 2024-04-25
  • DOI :https://doi.org/10.7732/kjpr.2024.37.4.411
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