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2026 Vol.39, Issue 2 Preview Page

Research Article

Evaluation of Winter Hardiness and Agronomic Trait Diversity in Triticale Genetic Resources

트리티케일 유전자원의 내한성 및 농업 형질 다양성 평가

Ja Hwan Ku1†
,
Jeong Ju Kim1†
,
Keun Chun Park3
,
Sujung Kim2
,
Kyung Yoon Ra2
,
Myoung Ryoul Park4
,
Su Jeong Kim5
구 자환1†
,
김 정주1†
,
박 근춘3
,
김 수정2
,
라 경윤2
,
박 명렬4
,
김 수정5
1Post-doc, Central-Northern Region Crop Research Center, National Institute of Crop and Food Science, RDA, Suwon 16429, Korea
2Researcher, Central-Northern Region Crop Research Center, National Institute of Crop and Food Science, RDA, Suwon 16429, Korea
3Master’s Degree Researcher, Central-Northern Region Crop Research Center, National Institute of Crop and Food Science, RDA, Suwon 16429, Korea
4Researcher, Crop Production & Physiology Division, National Institute of Crop and Food Science, RDA, Wanju-Gun 55365, Korea
5Senior Researcher, Central-Northern Region Crop Research Center, National Institute of Crop and Food Science, RDA, Suwon 16429, Korea
1농촌진흥청 국립식량과학원 중북부작물연구센터, 박사후연구원
2농촌진흥청 국립식량과학원 중북부작물연구센터, 농업연구사
3농촌진흥청 국립식량과학원 중북부작물연구센터, 석사후연구원
4농촌진흥청 국립식량과학원 작물환경과, 농업연구사
5농촌진흥청 국립식량과학원 중북부작물연구센터, 농업연구관
*Corresponding Author
†These authors contributed equally to this work.
1 April 2026. pp. 44-58
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Abstract

This study evaluated winter hardiness and agronomic traits in 253 triticale germplasms from 17 countries to support breeding for Korean paddy field double cropping systems. The East Asian group, including Korea, exhibited superior potential for forage yield with the earliest heading (195 days), tallest plant height (133 ㎝), and highest thousand-grain weight (50 g). Overall, stronger winter hardiness correlated with longer plant and culm lengths. A significant negative correlation (r = -0.60***) between heading date and thousand-grain weight suggests that early heading resources are advantageous for large grain development in Korea. Principal component analysis and cluster analysis identified four distinct groups. Cluster I (early maturity, high grain weight) and Cluster II (strong winter hardiness, tall plant height) were identified as the most effective parental lines for developing high yielding, high quality triticale varieties adapted to domestic environments.

Keywords
Agronomic characteristics
Cluster analysis
Germplasm
Multivariate analysis
Triticale
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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 : 39
  • No :2
  • Pages :44-58
  • Received Date : 2026-03-18
  • Revised Date : 2026-03-26
  • Accepted Date : 2026-03-26
  • DOI :https://doi.org/10.7732/kjpr.2026.39.2.044
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