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논문 기본 정보

자료유형
학술저널
저자정보
이재환 (삼육대학교 자연과학연구소) 안재정 (삼육대학교)
저널정보
강원대학교 농업생명과학연구원(구 농업과학연구소) 농업생명환경연구 농업생명환경연구 제36권 제3호
발행연도
2024.9
수록면
217 - 231 (15page)
DOI
10.22698/jales.20240018

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Betula platyphylla var. japonica, a member of the Betulaceae family, is a temperate landscape tree species with significant industrial value. This study investigated the effects of short-term dry-cold treatment periods that ranged from 0 to 60 days on the germination success of B. platyphylla var. japonica seeds and their post-germination growth and physiological characteristics. The short-term dry-cold treatment periods were 0 (control), 15, 30, 45, and 60 days. The results revealed that seeds subjected to a 30-day dry-cold treatment period exhibited the highest germination percentage, seedling survival rate, and germination energy, whereas relatively longer dry-cold treatment periods significantly decreased these parameters. Furthermore, the control without any dry-cold treatment exhibited a more pronounced decrease in these parameters. In contrast, the 15-day dry-cold treatment period was observed to be most beneficial in regard to enhancing the size and biomass of B. platyphylla var. japonica seedlings. Analysis of the remote sensing vegetation indices and chlorophyll fluorescence responses used to assess the physiological characteristics of seedlings indicated that a dry-cold treatment period of 0-15 days was the most appropriate. Therefore, when the primary objective is to maximize germination success and seedling survival rates, a 30-day dry-cold treatment period is optimal. Conversely, if the goal is to enhance rapid seedling growth and improve physiological characteristics, a 15-day short-term dry-cold treatment period is the most suitable. These findings offer valuable guidance for selecting appropriate short-term dry-cold treatment periods to maximize germination success, post-germination growth, and physiological performance of B. platyphylla var. japonica seeds.

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