밀 유전자원의 농업적 특성 및 적응성 분석을 통한 국내 재배환경에 적합한 유전자원 활용성 분석
Selection of Wheat Germplasm in Korean Production Environments employing Agronomic Characteristics and Adaptation Analysis
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초록
The National Agrobiodiversity Center of the RDA, Korea, has more than 22,700 accessions of global wheat genetic resources, includingKorean wheat cultivars and landraces. Despite the numerous efforts to develop high-quality, hard winter wheat, the employment of new geneticresources into Korean wheat breeding programs is still hampered by the different growing environments. To overcome this limitation, 200germplasms that were screened using the Genebank Management System (GMS) were evaluated in three different regions in Korea. In the2018–2019 trial, 55 lines that showed superior field performance and high protein content were selected from among the 200 germplasms. These lines were re-evaluated in the 2019–2020 trial, and 24 lines that had suitable traits for growth, grain yield, and grain protein contentin three locations were finally selected. These winter wheat germplasms also showed high yield stability throughout the three different environmentsin Korea. Preliminary screening using GMS information, consecutive regional tests, and quality tests could be effective procedures for thedevelopment of hard winter wheat in Korea. Therefore, introduction breeding could be a favorable breeding method aiming to improve quality,where useful genetic resources are limited.
Abstract
The National Agrobiodiversity Center of the RDA, Korea, has more than 22,700 accessions of global wheat genetic resources, includingKorean wheat cultivars and landraces. Despite the numerous efforts to develop high-quality, hard winter wheat, the employment of new geneticresources into Korean wheat breeding programs is still hampered by the different growing environments. To overcome this limitation, 200germplasms that were screened using the Genebank Management System (GMS) were evaluated in three different regions in Korea. In the2018–2019 trial, 55 lines that showed superior field performance and high protein content were selected from among the 200 germplasms. These lines were re-evaluated in the 2019–2020 trial, and 24 lines that had suitable traits for growth, grain yield, and grain protein contentin three locations were finally selected. These winter wheat germplasms also showed high yield stability throughout the three different environmentsin Korea. Preliminary screening using GMS information, consecutive regional tests, and quality tests could be effective procedures for thedevelopment of hard winter wheat in Korea. Therefore, introduction breeding could be a favorable breeding method aiming to improve quality,where useful genetic resources are limited.
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