비음처리에 따른 먼나무의 광합성, 엽록소 함량 및 엽 특성

• 영문명: Photosynthesis, Chlorophyll Contents and Leaf Characteristics of Ilex rotunda under Different Shading Treatments
• 발행기관: 한국자원식물학회
• 저자명: 한진규(Jin-Gyu Han) 손석규(Seog-Gu Son) 김세현(Sea-Hyun Kim) 김찬수(Chan-Soo Kim) 황석인(Suk-In Hwang) 변광옥(Kwang-Ok Byun)
• 간행물 정보: 『한국자원식물학회지』제21권 제4호, 299~303쪽, 전체 5쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2008.08.31

영문 초록

Two-year-old seedlings of Ilex rotunda were grown under control (full sunlight) and three different shading condition. Those conditions were full sunlight (PPFD 1600μmol m-2 s-1), 30% (PPFD 400μmol m-2 s-1), 50% (PPFD 250μ mol m-2 s-1) and 70% treatment (PPFD 100μmol m-2 s-1). Total chlorophyll contents were inverse proportion to light intensity. Seedlings under full sunlight showed the highest photosynthetic activity such as photosynthetic rate, intercellular CO2 concentration and water use efficiency. Photosynthetic activity trend was increased at the higher light intensity than the lower treatment over PPFD 500μmol m-2 s-1. Especially, seedlings under 70% treatment showed the worst photosynthetic activity at high light intensity. That result was regular for adapted plant in low intensity environment. Leaf area was also inverse proportion to light intensity, while dry weight per leaf area was shown the opposite trend.

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키워드

Ilex rotunda Shading treatment Light intensity Photosynthetic rate Intercellular CO2 concentration, Water use efficiency