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NTIS 바로가기한국농림기상학회지 = Korean Journal of Agricultural and Forest Meteorology, v.17 no.1, 2015년, pp.75 - 84
김길남 (국립산림과학원 산림유전자원부) , 한심희 (국립산림과학원 산림유전자원부)
This study was conducted to investigate the effects of high temperature and drought on growth performance, photosynthetic parameters and photosynthetic pigment contents of Liriodendron tulipifera L. seedlings. The seedlings were grown in controlled-environment growth chambers with combinations of fo...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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백합나무란? | 백합나무(Liriodendron tulipifera L.)는 미국 동부지역에서 자생하는 교목성 낙엽 활엽수로, 겨울철 평균 기온이 -7.2℃~16.1℃, 여름철 평균기온이 20.6℃~27.2℃이고, 연간강수량은 평균 762~2,032 mm인 곳에 자생한다(Beck, 1990). 우리나라에서는 1967년부터 1973년 사이에 3회에 걸쳐 북미 지역에서 백합나무를 도입하여 전국 각지에 시험 식재 하였다. | |
식물의 수분 이용 정도가 직경생장과 수고생장을 결정짓는 중요한 요인인 이유는? | 식물의 생장은 세포의 분열과 생장속도, 그리고 새로운 원형질과 세포벽의 합성에 필요한 유기, 무기화합물의 공급에 의해 조절된다. 특히, 세포의 생장은 세포의 팽압과 관계되고, 줄기와 잎의 신장은 수분 부족에 의해 억제되기 때문에, 식물의 수분 이용 정도는 직경생장과 수고생장을 결정짓는 중요한 요인이다(K℃h et al., 2004). | |
온도 증가에 의해 엽록소 함량은 증가하거나 감소하는 등 다양한 반응을 보이는 이유는? | , 2009) 등 다양한 반응을 보인다. 이는 수종에 따라 온도에 대한 생리적 반응이 다르기 때문이다. 백합나무 유묘는 대조구와 건조 처리구 모두 온도가 증가할수록 엽록소 함량이 뚜렷하게 증가하는 경향을 보였다. |
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