Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Effects of Artificial Water Treatment on Chlorophyll Contents and Photosynthetic Characteristics in Fraxinus rhynchophylla and Fraxinus mandshurica Seedlings

인위적인 수분처리에 의한 물푸레나무와 들메나무의 엽록소 함량 및 광합성에 미치는 영향

  • Lee, Soo-Won (Forest Practice Research Center, Korea Forest Research Institute) ;
  • Choi, Jeong-Ho (Resources Development Div. of KENERTEC Co., LTD.) ;
  • Chung, Jin-Chul (Division of Bio-Environment Science, Wonkwang University) ;
  • Kwon, Ki-Won (Department of Environment and Forest Resources, Chungnam National University) ;
  • Yoo, Se-Kuel (Forest Practice Research Center, Korea Forest Research Institute) ;
  • Bae, Jong-Hyang (Division of Horticulture and Pet Animal-Plant Science, Wonkwang University)
  • 이수원 (국립산림과학원 산림생산기술연구소) ;
  • 최정호 (케너텍㈜ 자원개발본부) ;
  • 정진철 (원광대학교 생명환경학부) ;
  • 권기원 (충남대학교 산림자원학) ;
  • 유세걸 (국립산림과학원 산림생산기술연구소) ;
  • 배종향 (원광대학교 원예.애완동식물학부)
  • Published : 2008.06.30
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Abstract

The content of chlorophyll a, b have generally increased for Fraxinus rhynchophylla and Fraxinus mandshuricain the order of month of June B>C and >D. Therefore we suppose the photosynthesis rate will increase if the moisture level is high and in regardless of the growth stage.

인위적인 토양내 수분처리 결과 물푸레나무와 들메나무 모두 6월<8월<9월로 갈수록 엽록소 함량이 증가하였다. 생육기간이 지나는 동안 엽록소 a는 0.89mg/g에서 1.67mg/g로, 엽록소 b는 0.18mg/g에서 0.44mg/g을 나타냈으며, 두 수종 모두 6월보다 8월과 9월에 높은 함량 증가를 보였다. 두 수종의 광합성율을 보면, 물푸레나무는 각 토양수분 처리구마다 광합성율의 차이를 보였으며, 충분한 토양수분처리구($90{\sim}78%$)의 묘목이 상대적으로 낮은 토양수분조건에서 자란 묘목보다 높은 경향을 나타냈다. 들메나무 역시 물푸레나무와 비슷한 경향을 보였으며, 토양수분이 높을수록 광합성률이 높게 나타났고, 감소할수록 광합성률이 감소하였다. 광합성율의 생육시기별 변화는 두 수종 모두 9월>8월>6월 순으로. 9월에 상대적으로 높은 광합성률을 나타냈다. 이로 미루어보면 두 수종은 생장시기에 상관없이 수분함량이 높은 처리구에서 광합성이 활발히 이루어지는 것으로 생각된다.

Keywords

References

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