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ISSN : 1225-5009(Print)
ISSN : 2287-772X(Online)
Flower Research Journal Vol.31 No.S pp.13-13

Physiochemical Properties of Drought and Salt Stresses of Native Cyperaceae 3 species as Garden Materials for Possible Future Responses to Global Climate Change

Saeng Geul Baek*, Jung Won Shin, Ji Won Lee, Jeong Min Seo, Hyun Won Yoon, Jung Min Kim

Department of Garden Material Research, Sejong National Arboretum, Korea Arboreta and Gardens Institute 30106, Korea


This study conducted for development new garden materials for possible future responses to global climate change through the evaluation of adaptability to outdoor environmental conditions (drought and salt stresses) targeting native Cyperaceae 3 species (C. siderosticta Hance (대사초), C. sabynensis Less. ex Kunth (실청사초), C. erythrobasis H. Lév. & Vaniot (한라사초)) at Sejong National Arboretum. Drought treatment was divided into no watering, once every other week, once a week, twice a week, and daily irrigation and salt treatment was divided into 0, 150, 250, 350 and 500mM. The experiment was conducted for one month (July, 2022) in the glasshouse and the physiological and biochemical responses of each species were compared through analysis of biomass, photosynthetic rate (Pn), total chlorophyll content and K+ /Na+ ratio (only salt stress). As a result of the resistance comparison of drought and salt stresses by species was in the order of C. siderosticta > C. sabynensis > C. erythrobasis. In the drought treatment, all tree species showed the lowest physiological response in the no watering condition. And, biomass, photosynthetic rate, total chlorophyll contents including leaf browning tended to be very low at most of the 500mM salinity concentrations, and the K+ /Na+ ratio, which is used as an index of resistance to salt stress, also decreased as the salt concentration increased. Especially, C. erythrobasis indicated significantly low physiochemical properties under drought(no watering, once every other week, once a week, twice a week) and salt(150, 250, 350 and 500 mM) treatment condition expert the control compared with other species. Therefore, the C. siderosticta species have high resistance to drought and salt stresses, and expected to highly utilized as a garden plant material for outdoor urban gardens and climate change response.




  2. Journal Abbreviation : 'Flower Res. J.'
    Frequency : Quarterly
    Doi Prefix : 10.11623/frj.
    ISSN : 1225-5009 (Print) / 2287-772X (Online)
    Year of Launching : 1991
    Publisher : The Korean Society for Floricultural Science
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