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Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ / v.9, no.3, 2000³â, pp.171-178
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±¤µµ, ¿Âµµ, $ extrm{CO}_2$ ³óµµ ¹× ¿±Áß Áú¼Ò³óµµÀÇ º¯È¿¡ µû¸¥ ¾ç¾×Àç¹è ¿ÀÀÌÀÇ ±¤ÇÕ¼º¼Óµµ¿¡ °üÇÑ ¼ö¸®Àû ¸ðÇü
( Mathematical Models of Photosynthetic Rate of Hydroponically Grown Cucumber Plants as Affected by Light Intensity, Air Temperature, Carbon Dioxide and Leaf Nitrogen Content ) |
| ÀÓÁØÅÃ;¹é¼±¿µ;Á¤ÇöÈñ;Çö±Ôȯ;±Çº´¼±; ¼øÃµ´ëÇб³ ÀÚ¿ø½Ä¹°°³¹ßÇаú;¼øÃµ´ëÇб³ ÀÚ¿ø½Ä¹°°³¹ßÇаú;¼øÃµ´ëÇб³ ÀÚ¿ø½Ä¹°°³¹ßÇаú;¼øÃµ´ëÇб³ ÀÚ¿ø½Ä¹°°³¹ßÇаú;¼øÃµ´ëÇб³ ÀÚ¿ø½Ä¹°°³¹ßÇаú;
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| ½Ã¼³ ¿ÀÀÌÀç¹è¿¡¼ Á¶Àý°¡´ÉÇÑ È¯°æ¿äÀεé, Áï ±¤µµ, $CO_2$ ³óµµ, ¿Âµµ ±×¸®°í ¿±Áß Áú¼Ò ³óµµÀÇ º¯È¿¡ µû¸¥ ¾ç¾×Àç¹è ¿ÀÀÌ ¿±ÀÇ Ãѱ¤ÇÕ¼º ¼Óµµ¸¦ ÃøÁ¤ÇÏ¿´´Ù. ±¤º¸»óÁ¡Àº 10~20$mu$mol.m$^{-2}$ .s$^{-1}$ Á¤µµ·Î ³·¾Ò°í ±¤Æ÷ÈÁ¡Àº 1000$mu$mol.m$^{-2}$ .s$^{-1}$ ÀÌ»óÀ̾úÀ¸¸ç, ¿ÀÀÌÀÇ Ãѱ¤ÇÕ¼º ¼Óµµ´Â ¿Âµµ°¡ »ó½ÂÇÒ¼ö·Ï Áõ°¡¼Óµµ´Â °¨¼ÒÇÏÁö¸¸ Áö¼ÓÀûÀÎ Áõ°¡¸¦ º¸¿´À¸³ª 24~32$^{circ}C$ »çÀÌ¿¡¼ ±¤ÇÕ¼º ¼Óµµ´Â Å« Â÷À̸¦ º¸ÀÌÁö ¾Ê¾Æ ÀÌ ¹üÀ§°¡ ¿ÀÀÌ »ýÀ°¿¡ ´ëÇÑ ÀûÁ¤¿ÂµµÀÎ °ÍÀ¸·Î ³ªÅ¸³µ´Ù. $CO_2$ º¸»óÁ¡Àº 20-40$mu$mol.mol$^{-1}$ »çÀÌ¿¡ À§Ä¡ÇÏ¿´°í $CO_2$Æ÷ÈÁ¡Àº 1200$mu$mol.mol$^{-1}$ÀÌ»óÀ¸·Î ³ªÅ¸³µÀ¸¸ç ¿±ÁßÀº Áú¼ÒÇÔ·®ÀÇ Áõ°¡¿¡ µû¸¥ ÀÙÀÇ Ãѱ¤ÇÕ¼º ¼ÓµµÀÇ º¯È´Â sigmoidÇüÀÇ Áõ°¡Ãß¼¼¸¦ º¸¿´´Ù. ¿äÀε鰣ÀÇ »óÈ£ÀÛ¿ë È¿°ú¿¡¼´Â ¸ðµç °æ¿ì »ó½ÂÀûÀ¸·Î ³ªÅ¸³ª, ÇÑ ¿äÀÎÀÇ ¼öÁØÀÌ Áõ°¡ÇÔ¿¡ µû¶ó Ÿ ¿äÀÎÀÇ ¼öÁØÀÇ Áõ°¡¿¡ µû¸¥ Ãѱ¤ÇÕ¼º ¼Óµµµµ »ó½ÂÀûÀ» Áõ°¡ÇÏ¿´´Ù. °¢È¯°æ¿äÀÎÀÇ º¯È¿Í ¿äÀε鰣ÀÇ »óÈ£ÀÛ¿ë¿¡ µû¸¥ Ãѱ¤ÇÕ¼º ¼ÓµµÀÇ º¯È¿¡ ´ëÇÑ ¼ö¸®Àû ¸ðÇüÀ» °³¹ßÇÏ¿´´Ù. ÀÌµé ¸ðÇüÀº ½Ã¼³ ³» ȯ°æº¯ÀÌ¿¡ µû¸¥ ¿ÀÀÌÀÇ »ýÀ° ³»Áö´Â ¼ö·®¿¡¼ÀÇ Â÷À̸¦ ¹àÈ÷´Âµ¥ ÀÌ¿ëµÉ ¼ö ÀÖÀ¸¸ç ¿ÀÀÌÀÇ ½Ä¹°»ýÀå ¸ðÇüÀ̳ª ´õ ³ª¾Æ°¡ °æ¿µÇÕ¸®È¸¦ À§ÇÑ ¿ÀÀÌ »ý»ê Àü¹®°¡ ½Ã½ºÅÛÀÇ °³¹ß¿¡ ÇÊ¿äÇÑ ±âÃÊ ÀÚ·á·Î ÀÌ¿ëµÉ ¼ö ÀÖÀ» °ÍÀÌ´Ù. |
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| Gross photosynthetic rats of leaves of hydroponically grown cucumber plants(Cucumis sativus L. cv. Guwoosalichungjang) were measured under various conditions of photosynthetic photon flux(PPF), ambient $CO_2$ concentration, air temperature and leaf nitrogen contents. Light compensation point of leaf photosynthesis appeared to be in the range of 10~20$mu$mol.m$^{-2}$ .s$^{-1}$ and light saturation point be above 1000$mu$mol.m$^{-2}$ .s$^{-1}$ . Gross photosynthetic rates increased persistently and asymptotically as air temperature rose from 12$^{circ}C$ to 32$^{circ}C$. However, there were only small differences in gross photosynthetic rates in the range of 24-32$^{circ}C$, so that the range seemed to be optimal for photosynthesis of cucumber plants at the condition of $CO_2$ concentration of 400$mu$mol.mol$^{-1}$ and PPF of around 400$mu$mol.m$^{-2}$ .s$^{-1}$ . $CO_2$ compensation point of leaf photosynthesis appeared to be in the range of 20-40$mu$mol.mol$^{-1}$ and $CO_2$ saturation point be above 1200$mu$mol.mol$^{-1}$ . Gross photosynthetic rates increased sigmoidally as leaf nitrogen content increased. These environmental factors interacted synergistically to enhance gross photosynthetic rate, so that the rate increased multiplicatively s level of one factor increased progressively with higher levels of he other factors. Mathematical models wer developed to estimate the gross photosynthetic rate in accordance with the variations of these environmental factors. These modes can be used not only to explain he variation of growth or yield of cucumber plants under different environmental conditions but also as building blocks of plant growth model or expert system of cucumber plants. |
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| Ű¿öµå |
| Ãѱ¤ÇÕ¼º ¼Óµµ;¾ç¾×Àç¹è;±¤;¿Âµµ;¿±ÁßÁú¼ÒÇÔ·®;Ãѱ¤ÇÕ¼º ¼ÓµµÀÇ ¼ö¸®Àû ¸ðÇü;Cucumis sativus L.;$ extrm{CO}_2$;GPR;PPF;Gross photosynthetic rate;hydroponics;light;temperature;leaf nitrogen content;mathematical model of gross photosynthetic rate; |
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»ý¹°È¯°æÁ¶ÀýÇÐȸÁö / v.9, no.3, 2000³â, pp.171-178
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
ISSN : 1229-4675
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200011920846142)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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