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Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸ / v.21, no.4, 2008³â, pp.299-303
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( Photosynthesis, Chlorophyll Contents and Leaf Characteristics of Ilex rotunda under Different Shading Treatments )
ÇÑÁø±Ô;¼Õ¼®±Ô;±è¼¼Çö;±èÂù¼ö;Ȳ¼®ÀÎ;º¯±¤¿Á; °æÈñ´ëÇб³ »ýŽýºÅÛ°øÇÐ;±¹¸³»ê¸²°úÇпø ³­´ë»ê¸²¿¬±¸¼Ò;±¹¸³»ê¸²°úÇпø »ê¸²À¯ÀüÀÚ¿øºÎ;±¹¸³»ê¸²°úÇпø ³­´ë»ê¸²¿¬±¸¼Ò;±¹¸³»ê¸²°úÇпø »ê¸²À¯ÀüÀÚ¿øºÎ;±¹¸³»ê¸²°úÇпø ³­´ë»ê¸²¿¬±¸¼Ò;
 
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4°¡Áö ´Ù¸¥ ±¤µµÁ¶°ÇÀÇ ºñÀ½Ã³¸®±¸¿¡¼­ 2³â°£ »ýÀ°ÇÑ ¸Õ³ª¹« ¹¦¸ñÀÇ ÃÑ ¿±·Ï¼Ò ÇÔ·®Àº ºñÀ½Ã³¸® °­µµ°¡ ³ô¾ÆÁú¼ö·Ï ÃÑ ¿±·Ï¼Ò ÇÔ·®µµ Å« °ªÀ» ³ªÅ¸³Â´Ù. ±¤ÇÕ¼º Ư¼ºÀ» ¾Ë¾Æº¸±â À§ÇØ Á¶»çµÈ ±¤ÇÕ¼º ´É·Â, ¿±À°³» $CO_2$ ³óµµ, ¼öºÐÀÌ¿ëÈ¿À² ¸ðµÎ ¹«Ã³¸®¿¡¼­ °¡Àå ³ôÀº ±¤ÇÕ¼º È¿À²À» ³ªÅ¸³ÂÀ¸¸ç ºñÀ½Ã³¸®º° ºñ±³¿¡¼­µµ ±¤µµ°¡ ³·¾ÆÁú¼ö·Ï ³·Àº ±¤ÇÕ¼º È¿À²À» ³ªÅ¸³Â´Ù. ƯÈ÷, °¡Àå ³·Àº ±¤µµÁ¶°ÇÀÎ 70% Â÷±¤Ã³¸®±¸´Â ³ôÀº ±¤µµÁ¶°Ç¿¡¼­ °¡Àå ³·Àº ±¤ÇÕ¼º È¿À²À» ³ªÅ¸³Â´Âµ¥ ÀÌ´Â ³·Àº ±¤µµÁ¶°Ç¿¡ ¼øÈ­µÈ ±¤ÇÕ¼º ±â±¸°¡ ³ôÀº ±¤µµ Á¶°Ç¿¡ ÀûÀÀÇÏÁö ¸øÇÑ °á°ú·Î »ç·áµÈ´Ù. ÀÙÀÇ ÇüÅÂÀû Ư¼º¿¡¼­´Â ±¤µµÁ¶°ÇÀÌ ³·À»¼ö·Ï Å« ¿±¸éÀûÀ» ³ªÅ¸³ÂÀ¸¸ç ´ÜÀ§¸éÀû´ç °ÇÁß·®Àº ¹«Ã³¸®¿¡¼­ °¡Àå Å« °ªÀ» ³ªÅ¸³Â´Ù.
Two-year-old seedlings of Ilex rotunda were grown under control (full sunlight) and three different shading condition. Those conditions were full sunlight (PPFD 1600${mu}mol;m^{-2};s^{-1}$), 30% (PPFD 400${mu}mol;m^{-2};s^{-1}$), 50% (PPFD 250${mu}mol;m^{-2};s^{-1}$) and 70% treatment (PPFD 100${mu}mol;m^{-2};s^{-1}$). Total chlorophyll contents were inverse proportion to light intensity. Seedlings under full sunlight showed the highest photosynthetic activity such as photosynthetic rate, intercellular $CO_2$ concentration and water use efficiency. Photosynthetic activity trend was increased at the higher light intensity than the lower treatment over PPFD 500${mu}mol;m^{-2};s^{-1}$. 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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Ilex rotunda;Shading treatment;Light intensity;Photosynthetic rate;Intercellular $CO_2$ concentration;Water use efficiency;
 
Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸÁö / v.21, no.4, 2008³â, pp.299-303
Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸ
ISSN : 1226-3591
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200831050534499)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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