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Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ / v.7, no.3, 1998³â, pp.253-258
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°á±¸»óÃßÀÇ ¼ö°æÀç¹è½Ã ¼öÈ®Àü Áú¼ÒÁß´ÜÀÌ Ç°Áú¿¡ ¹ÌÄ¡´Â ¿µÇâ
( Effect of Nitrogen Starvation on Quality of Crisp Lettuce in Deep Flow Culture ) |
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| º» ½ÇÇèÀº ¼öÈ® 18, 14, 11, 7, 0ÀÏÀüÀÇ ¹è¾ç¾×³» Áú¼ÒÁß´ÜÀÌ °á±¸»óÃßÀÇ »ýÀ°°ú ǰÁú¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Á¶»çÇÑ °ÍÀ¸·Î, Áú¼Ò Áß´ÜÀ¸·Î ¿±Áß nitrate ÇÔ·®Àº »ó´ç·® °¨¼ÒÇÏ¿´´Ù. ±×·¯³ª ±×¿Í µ¿½Ã¿¡ »ýüÁßµµ °¨¼ÒÇÏ¿´´Ù. ¼öÈ® 18ÀÏÀü 󸮿¡¼ °á±¸µÈ °ÑÀÙÀÇ nitrate ÇÔ·®ÀÌ °¡Àå ³·¾ÒÀ¸¸ç, ¼ÓÀÙÀº ¼öÈ® 14ÀÏÀü ¹× 11ÀÏÀü 󸮿¡¼ °¡Àå ³·¾Ò´Ù. Áú¼ÒÁß´Ü ±â°£ÀÌ ±æ¼ö·Ï ¾çÀÌ¿ÂÀÇ Èí¼ö°¡ ÀúÁ¶ÇÏ¿´´Ù. ½ÇÇè±â°£µ¿¾È pH´Â 0ÀÏÀü ¹× 7ÀÏÀü 󸮱¸¸¦ Á¦¿ÜÇϰí´Â °¨¼ÒÇÏ´Â °æÇâÀ» º¸¿´À¸¸ç, EC´Â 󸮿¡ °ü°è¾øÀÌ °è¼ÓÀûÀ¸·Î Áõ°¡ÇÏ¿´´Ù. |
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| Lettuce plants(Lactuca sativa var. capitata L.) were subjected to nitrogen starvation for 18, 14, 11, 7, and 0 days before harvest. The nitrate content of lettuce was decreased greatly by nitrogen starvation and also its fresh weight. The nitrate content of the middle part of leaves was lowest at the treatment of 18 days before harvest. In the inner part it was lowest at the treatment of 11 and 14 days before harvest. The longer the period of nitrogen starvation was, the more were decreased the absorption rates of cations at harvest. During the experiment, the pH was decreased except the treatment of 7 days before harvest. The EC was continuously increased regardless of treatments. |
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| ¾ç¾×Àç¹è;Áú»êÅ Áú¼ÒÇÔ·®;»ýüÁß;hydroponics;pH;EC;nitrate content;fresh weight; |
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»ý¹°È¯°æÁ¶ÀýÇÐȸÁö / v.7, no.3, 1998³â, pp.253-258
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
ISSN : 1229-4675
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199811922406223)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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