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ISSN : 2287-8327

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Vol.37 No.2
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Effects of environmental factors on the growth response of above- and below-ground parts of Mankyua chejuense, endangered endemic plant to Jeju province, in Korea

Journal of Ecology and Environment / Journal of Ecology and Environment, (P)2287-8327; (E)2288-1220
2014, v.37 no.2, pp.61-67
https://doi.org/10.5141/ecoenv.2014.008




& (2014). Effects of environmental factors on the growth response of above- and below-ground parts of Mankyua chejuense, endangered endemic plant to Jeju province, in Korea. Journal of Ecology and Environment, 37(2), 61-67, https://doi.org/10.5141/ecoenv.2014.008
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Abstract

Mankyua chejuense is a native endangered plant distributed only in Gotzawal, a forested wetland, in Jeju Province, Korea. In order to determine the optimal environmental conditions for the growth and development of M. chejuense, we inves¬tigated the above- and below-ground growth responses and survival rate to various soil texture (sand and clay), water regimes (flooding and non-flooding), and CO2+T (ambient and elevated) conditions. All of the treatments had significant effects on aboveground growth parameters, while only the water regime and CO2+T treatments influenced belowground growth. The survival rate of M. chejuense was about twice higher under the sand, non-flooding and elevated CO2+T condi¬tions than clay, flooding and ambient CO2+T conditions. These results indicate that M. chejuense grows in well-drained sandy soil conditions and elevated CO2 concentration and temperature situations. Thus, there is a need to maintain M. chejuense under constant non-flooding soil conditions by implementing appropriate soil drainage strategies.

keywords
fern, flooding, global warming, rhizome, soil texture, sporophyll

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