Earticle

초록

영어

Salix gracilistyla is widely distributed along riversides in Korea and very good for biomass production by SRC because of its excellent germination ability, but it is necessary to measure drying tolerance for cultivation. The drought tolerance of S. gracilistyla was tested using cuttings, and growth and physiological analysis were performed after irrigation was stopped. The growth inhibition of S. gracilistyla was observed from the day irrigation was stopped, and the soil moisture content decreased to less than 10% on the 25th day after irrigation was stopped. Over 50% of the seedlings turned brown 25 days after watering was stopped. The chlorophyll content of S. gracilistyla decreased dramatically after 25 days of stopping of irrigation. RWC values were unchanged until day 12 after irrigation was stopped but decreased rapidly until day 21, but there was a slightly decreasing trend after that. RWL levels increased slightly during irrigation stops. The proline content of plants subjected to drought stress was 0.91-2.63 mg/0.05 g, 2.75 times higher than that of the control treatment. The sugar content of the drought stress treatment group was 29.77 to 350.66 mg/0.05 g, which increased 12.24 times that of the control treatment. As a result of this study, S. gracilistyla was found to have a drought tolerance almost comparable to that of evergreen broad-leaved trees growing on the land. This study is expected to contribute to the resource utilization S. gracilistyla, a native willow tree of Korea, and the mass production of biomass by SRC.

목차

Abstract
Introduction
Materials and Methods
Plant material and drought stress treatment
Measurement of soil moisture content
Measurement of leaf wilting and chlorophyll content
Measurement of leaf water content in drought stressed plant
Analysis of proline content in drought stressed plant
Measurement of reducing sugar in drought stressed plant
Statistical analysis
Results
Soil moisture content
Growing characterization of drought stressed plants
Leaf water content of drought stressed plant
Proline content of drought stressed plant
Reducing sugar content of drought stressed plant
Discussion
Characterization of drought stressed plants
Leaf water content in drought stressed plant
Proline and sugar content in drought stressed plant
Acknowledgements
References

키워드

저자

• Hyun Jin Song [ Department of Plant Variety Examination, National Forest Seed and Variety Center, Chungju 27495, Republic of Korea ]
• Seong Hyeon Yong [ Division of Environmental Forest Science & Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea ]
• Hak Gon Kim [ Department of Forest Research, Gyeongsangnam-do Forest Environment Research Institute, Jinju 52615, Republic of Korea ]
• Kwan Been Park [ Division of Environmental Forest Science & Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea ]
• Do Hyeon Kim [ Division of Environmental Forest Science & Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea ]
• Seung A Cha [ Division of Environmental Forest Science & Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea ]
• Ji Hyun Lee [ Division of Environmental Forest Science & Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea ]
• Myung Suk Choi [ Division of Environmental Forest Science & Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea ] Corresponding Author

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