Korean Journal of Plant Resources (한국자원식물학회지)

The Plant Resources Society of Korea (한국자원식물학회)
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A Comparison of Photosynthetic Characteristics of Three Ligularia species Under-tree Cultivation

임간재배지에서 세 종 곰취(Ligularia)속 식물의 광합성특성 비교

  • Kim, Gab-Tae (Department of Forestry, College of Life Sci. and Nat. Resources, Sangji Univ.)
  • 김갑태 (상지대학교 생명자원과학대학 산림과학과)
  • Published : 2008.10.31
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Abstract

The photosynthetic characteristics of three Ligularia species, L. fischeri, L. fischeri var. spiciformis and L. stenocephala under-tree cultivated in Dunnae-myeon, Hoengsung-gun were measured and compared. Total mean photosynthetic rate increased with increasing the light intensity up to 2,000 PPFD. Mean photosynthetic rate of L. fischeri increased to maximum value of $21.1{\mu}mol\;CO_{2}m^{-2}s^{-1}$ with increasing the light intensity up to 1,600 PPFD, but it was decreased at 2,000 PPFD. The highest photosynthetic rate was shown in L. fischeri var. spiciformis, followed by L. fischeri, and L. stenocephala. was the highest $27.39{\mu}mol\;CO_{2}m^{-2}s^{-1}$ among three species, followed by that of The differences in photosynthetic rates were significantly different among the species each measuring date. L. fischeri var. spiciformis was more adaptive species at the low elevated under-tree cultivated sites, such as, Sanchemaeul Dunnae-myeon Hoeyngseung-gun than L. fischeri and L. stenocephala.

고품질의 곰취, 곤달비 및 한대리곰취를 지속적으로 생산할 수 있는 임간재배기술을 개발하고자 횡성군 둔내면의 산채마을 임간재배지에 생육중인 세 식물종의 광합성을 특성을 조사 비교하였다. 광도에 따른 곰취류의 광합성율의 평균은 광도가 높아질수록 높아지는 경향을 보였다. 광도에 따른 곰취의 광합성율의 평균은 광도가 높아질수록 높아지다가 1,600 PPFD에서 최대치인 $21.1{\mu}mol\;CO_{2}m^{-2}s^{-1}$를 보이고 2,000 PPFD에서는 낮아졌다. 한대리곰취가 $27.39({\mu}mol\;CO_{2}m^{-2}s^{-1})$로 가장 높은 광합성율을 보였고, 곰취, 곤달비 순으로 낮아졌다. 5월 27일 측정에서 모두 식물종간 통계적 유의차가 인정되었으며 광합성율은 한대리곰취, 곰취, 곤달비 순이었고, 6월 21일 측정 광합성율은 한대리금취, 곤달비, 곰취순이었다. 횡성군 둔내면 산채마을과 같은 해발고가 낮은 지역에서는 곰취나 곤달비 보다는 한대리곰취의 임판재배가 적합할 것이라 사료된다.

Keywords

References

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