Earticle

초록

영어

The aim of this study was to investigate the sensitivity to environmental stress, and changes in the photosynthesis capacity in Abies koreana seedlings by age and to suggest the most effective age for restoration. To identify these physiological characteristics of A. koreana, the chlorophyll fluorescence and photosynthetic capacity of 1-, 2-, 3-, 5- and 6-year-old A. koreana seedlings were observed from June 2020 to June 2021. The maximum quantum efficiency of Photosystem II (Fv/Fm), a chlorophyll fluorescence measurement parameter, was strongly positively correlated with the monthly average temperature (1-year-old seedling: r=0.8779, 2-year-old seedling: r=0.8605, 3-year-old seedling: r=0.8697, 5-year-old seedlings: r=0.8085, and 6-year-old seedlings: r=0.8316). The Fv/Fm values were the lowest in winter (November 2020-March 2021). In addition, the Fv/Fm values of 1-, 2-, and 3-year-old seedlings in winter were lower than that of 5- and 6-year-old seedlings, while the Fv/Fm values in summer were relatively higher than those in winter. Further, the Fv/Fm values of seedlings of all ages decreased in August 2020, when the monthly average temperature was the highest. In particular, 1-year-old to 3-year-old seedlings showed Fv/Fm values less than 0.8. Further, the photosynthetic capacity measured in August 2020 increased with increasing seedling age. The analysis of variance results for summer Fv/Fm values showed significant differences in age-specific averages (p＜0.05), and Duncan’s multiple range test showed significant differences between 5- and 6-year-old seedlings and 1-, 2-, and 3-year-old seedlings (p＜0.05). These results suggested that the 5- and 6-year-old seedlings were less sensitive to environmental stress and showed better photosynthetic capacity than the 1-, 2-, and 3-year-old seedlings. Therefore, 5-year-old or older A. koreana seedlings can be used as restoration materials because they can show increased adaptability and stable growth during transplantation due to their relatively high environmental resistance and photosynthetic capacity.

목차

Abstract
Introduction
Materials and Methods
Plant materials and environmental factors
Chlorophyll fluorescence
Light response curve calculation
Statistical analyses
Results and Discussion
Seasonal changes in environmental factors
Age-wise differences in the chlorophyll fluorescence of A. koreana according to the season
Comparison of photosynthetic capacity of A. koreana seedlings by age through the light response curve
Conclusions
References

키워드

저자

• Han-Na Seo [ Forest Bioinformation Division, National Institute of Forest Science, Suwon 16631, Republic of Korea ]
• Seung-Beom Chae [ Forest Bioinformation Division, National Institute of Forest Science, Suwon 16631, Republic of Korea ]
• Hyo-In Lim [ Forest Bioinformation Division, National Institute of Forest Science, Suwon 16631, Republic of Korea ] Corresponding Author
• Sim-Hee Han [ Forest Microbiology Division, National Institute of Forest Science, Suwon 16631, Republic of Korea ]
• Kiwoong Lee [ Forest Ecology Division, National Institute of Forest Science, Seoul 02455, Republic of Korea ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  Journal of Forest and Environmental Science [산림과학연구]

• 간기

  계간

• pISSN

  2288-9744

• eISSN

  2288-9752

• 수록기간

  1981~2025

• 등재여부

  KCI 등재

• 십진분류

  KDC 526 DDC 634