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Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ / v.18, no.4, 2009³â, pp.303-308
Àú¾ÐÁ¶°Ç¿¡¼­ »óÃßÀÇ »ýÀ° Ư¼º
( Growth Characteristics of Lettuce under Low Pressure )
¹ÚÁ¾Çö;±è¿ëÇö; ÀüºÏ´ëÇб³ ´ëÇпø »ý¹°»ê¾÷±â°è°øÇаú;ÀüºÏ´ëÇб³ ³ó¾÷»ý¸í°úÇдëÇÐ »ý¹°»ê¾÷±â°è°øÇаú(³ó¾÷°úÇбâ¼ú¿¬±¸¼Ò);
 
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º» ¿¬±¸´Â Àú¾Ð Á¶°Ç¿¡¼­ ÀÛ¹°ÀÇ »ýÀå °¡´É¼ºÀ» °ËÅäÇϰí, ÀÛ¹° »ýÀå¿¡ ¹ÌÄ¡´Â ¾Ð·ÂÀÇ ¿µÇâÀ» »ìÆìº¸°íÀÚ ¼öÇàµÇ¾ú´Ù. °ø½ÃÀÛ¹°ÀÎ ÀûÄ¡¸¶»óÃßÁ¾ÀÚ(Lactuca sativa L.)¸¦ ÀÏ¹Ý ´ë±â¾ÐÁ¶°Ç¿¡¼­ ¹ß¾Æ½ÃÄÑ ÀΰøÈ¥ÇÕ ¹èÁö¸¦ ä¿î 50°ø Ç÷¯±×Æ®·¹ÀÌ Àý¹Ý¿¡ Á¤½ÄÇÏ¿´´Ù. Á¤½ÄµÈ »óÃß¹¦´Â 3¼öÁØÀÇ ¾Ð·ÂÁ¶°Ç(25, 50, 101.3 kPa)¿¡¼­ ó¸® µÇ¾ú´Ù. ¸ðµç ó¸®Á¶°Ç¿¡¼­ ±¤ÁÖ±â 16/8 h, ±â¿Â 26/$18^{circ}C$, ±¤ÇÕ¼ºÀ¯È¿±¤¾çÀÚ¼Ó $240{mu}mol{cdot}m^{-2}{cdot}s^{-1}$À¸·Î À¯ÁöÇÏ¿´´Ù. 3¼öÁØÀÇ ¾Ð·Â Á¶°Ç¿¡¼­ »ýÀåµÈ »óÃßÀÇ »ýÀåÁ¶»ç´Â ó¸® ÈÄ 7Àϰú 14Àϰ¿¡ ÀÌ·ç¾îÁ³´Ù. 7Àϰ »ýÀåÁ¶»ç °á°ú 25, 50, 101.3 kPa ó¸®Á¶°Ç¿¡¼­ ¿±¼ö, »Ñ¸®±æÀÌ, Áö»óºÎ °Ç¹°À², ¿±»öÀÇ hue°ªÀº À¯ÀÇÂ÷°¡ ÀÎÁ¤µÇÁö ¾Ê¾Ò´Ù. ¿±Àå, ¿±Æø, ¿±¸éÀû, ÁöÇϺΠ°Ç¹°ÁßÀº 101.3 kPaÀÇ Ã³¸®Á¶°Çº¸´Ù 25, 50 kPaÀÇ Ã³¸®Á¶°Ç¿¡¼­ À¯ÀÇÂ÷°¡ ÀÖ´Â °ÍÀ¸·Î Á¶»çµÇ¾ú´Ù. 14Àϰ »ýÀåÁ¶»ç °á°ú ¿±Àå, Áö»óºÎ °Ç¹°À², ÁöÇϺΠ°Ç¹°À²Àº 25, 50 kPaÀÇ Ã³¸® Á¶°Ç¿¡¼­ À¯ÀÇÂ÷°¡ ÀÎÁ¤µÇ¾ú´Ù 7Àϰ »ýÀåÁ¶»ç °á°ú¿Í´Â ´Ù¸£°Ô 25, 50, 101.3 kPaÀÇ Ã³¸®Á¶°Ç¿¡¼­ ¿±¼ö, ¿±Æø, ¿±¸éÀû, »Ñ¸®±æÀÌ, Áö»óºÎ »ýüÁß, Áö»óºÎ °Ç¹°À², ¿±»öÀÇ saturation °ªÀÇ À¯ÀÇÂ÷°¡ ÀÎÁ¤µÇÁö ¾Ê¾Ò´Ù. »ó±âÀÇ °á°ú·ÎºÎÅÍ 25, 50 kPaÀÇ Àú¾ÐÁ¶°Ç¿¡¼­µµ »óÃßÀÇ Àç¹è°¡ °¡´ÉÇÔÀ» È®ÀÎÇÏ¿´´Ù. ÇÑÆí, ÀÛ¹°·ÎºÎÅÍÀÇ Áõ»ê°ú ¹è¾ç¾×À¸·ÎºÎÅÍÀÇ Áõ¹ß·Î ¸»¹Ì¾Ï¾Æ Àú¾Ð è¹ö³»ÀÇ »ó´ë½Àµµ°¡ ³ôÀº ¼öÁØÀ¸·Î À¯ÁöµÇ¾ú°í, ÀÌ·Î ÀÎÇÏ¿© Àú¾Ð è¹ö ³»ºÎ Ç¥¸é¿¡ ÀÀÃà¼ö°¡ ¹ß»ýµÇ¾ú´Ù. ÀÌ·¯ÇÑ ÀÀÃà¼ö´Â Àú¾Ð è¹ö ³»ºÎ·Î Åõ°úµÇ´Â ±¤¾çÀ» ÀúÇÏ ½ÃŰ¹Ç·Î ÀÛ¹°ÀÇ »ýÀå¿¡ ºÎÁ¤ÀûÀÎ ¿µÇâÀ» ¹ÌÄ¡°Ô µÈ´Ù. ±×·¯¹Ç·Î Àú¾Ð è¹ö ³»ÀÇ ³ôÀº »ó´ë½Àµµ¸¦ ÀûÀýÇÑ ¼öÁØÀ¸·Î Á¦¾îÇÒ ¼ö ÀÖ´Â ±â¼ú °³¹ßÀÌ ¿äûµÈ´Ù.
This study was conducted to analyze the feasibility of plant growth under low pressure and to investigate the effect of pressure on plant growth. Three levels of pressures (25, 50, and 101.3 kPa (control)) were provided to analyze the growth of Lettuce (Lactuca sativa L.) as affected by low pressure. Photoperiod, air temperature, and photosynthetic photon flux were set at 16/8 h, 26/$18^{circ}C$, and $240{mu}mol{cdot}m^{-2}s^{-1}$, respectively. Growth characteristics of lettuce were measured on 7 days and 14 days after experiment. Leaf length, leaf width, leaf area, and root dry weight of lettuce measured on 7 days under 25 and 50 kPa were significant as compared to the control. Leaf length, top dry matter and root dry matter of lettuce measured on 14 days were significantly different under 25 and 50 kPa. From these results, we confirmed that lettuce could be grown under low pressure. However high relative humidity by evapotranspiration from leaves and growing beds under low pressure caused the condensation on the inner surface of the chamber. Therefore in a low pressure chamber, humidity control is required to maintain the relative humidity at a proper level.
 
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»ó´ë½Àµµ;»óÃß;½Ä¹°»ýÀå;Àú¾Ðè¹ö;lettuce;low pressure chamber;plant growth;relative humidity;
 
»ý¹°È¯°æÁ¶ÀýÇÐȸÁö / v.18, no.4, 2009³â, pp.303-308
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
ISSN : 1229-4675
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200914035211673)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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