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Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ / v.8, no.2, 1999³â, pp.108-114
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( Effects of Light Intensity and Nutrient Level on Growth and Quality of Leaf Lettuce in a Plant Factory ) |
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| ½Ä¹°°øÀå¿¡ ÀÖ¾î¼ »ý»ê¼º ±Ø´ëȸ¦ À§ÇÑ ÃÖÀûȯ°æÀ» ±¸¸íÇϱâ À§ÇÏ¿©, ½Ä¹°°øÀå ½Ã½ºÅÛ ÇÏ¿¡¼ ±¤µµ¿Í ¹è¾ç¾× ³óµµ°¡ ÀÙ»óÃßÀÇ »ýÀ°°ú ǰÁú¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Á¶»çÇÏ¿´´Ù. ½ÇÇè°á°ú ±¤ÀÌ ³ô¾ÆÁü¿¡ µû¶ó Áõ»ê·®°ú ±¤ÇÕ¼º·®ÀÌ ³ô¾ÒÀ¸¸ç, ±¤µµ 200$mu$mol $m^{-2}$ $s^{-1}$°ú 300$mu$mol $m^{-2}$ $s^{-1}$ ¿¡¼ »ýüÁß°ú °Ç¹°ÁßÀÌ °¡Àå ³ô°Ô ³ªÅ¸³µ´Ù. µû¶ó¼ ½Ä¹°°øÀå³» ÀÙ»óÃßÀÇ ÃÖÀû ±¤µµ´Â 200 $mu$mol $m^{-2}$ $s^{-1}$ ÀÌ»óÀ¸·Î ³ªÅ¸³µ´Ù. Áö»óºÎ ȯ°æ¿äÀεé°úÀÇ ÁöÇϺΠȯ°æ ¿äÀΰúÀÇ °ü°è¸¦ ¹àÈ÷±â À§Çؼ ±¤µµ¿Í ¹è¾ç¾× ³óµµ°£ÀÇ °ü°è°¡ ÀÙ»óÃß »ýÀ°°ú ǰÁú¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Á¶»çÇÑ °á°ú Åë°èÀû À¯ÀǼºÀº ¾ø¾úÀ¸³ª Àú±¤µµ¿¡¼´Â ¹è¾ç¾×³óµµ°¡ ³ôÀº ÆíÀÎ 2.4 mS cm-1¿¡¼ °í±¤µµ¿¡¼´Â 1.8 mS cm-1 ¼öÁØ¿¡¼ »ýÀ°·®ÀÌ ¸¹°Ô ³ªÅ¸³µ´Ù. |
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| This study was conducted to investigate the optimum environment for leaf lettuce (Lactuca sativa L. var. crispa) in a plant factory to increase mass-production efficiency of quality leaf lettuce. Transpiration rate and $CO_2$ assimilation rate were increased with increasing the photosynthetic photon flux density (PPFD). The highest fresh weight and dry weight were observed at the PPFD of 200 and 300 U moi $m^{-2}$ $s^{-l}$, respectively. The optimum aerial environment for the growth and quality of leaf lettuce in the plant factory was determined to be over 200 $mu$mol $m^{-2}$ $s^{-1}$ for PPFB. Although the interaction between light intensity and nutrient level was not significant, the lettuce growth was the best under electrical conductivity (EC) of 1.8 mS $cm^{-1}$ / at high light intensity (250 $mu$mol $m^{-2}$ $s^{-1}$ ) and EC of 2.4 mS cm-1 at low light level (150 $mu$mol $m^{-2}$ $s^{-1}$ ) respectively.y. |
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| ¼ö°æÀç¹è;±¤ÇÕ¼º±¤ÀÚÀ¯¼Ó¹Ðµµ;Àü±âÀüµµµµ;electrical conductivity;hydroponics;photosynthetic photon flux density.; |
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»ý¹°È¯°æÁ¶ÀýÇÐȸÁö / v.8, no.2, 1999³â, pp.108-114
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
ISSN : 1229-4675
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911922406624)
¾ð¾î : ¿µ¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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