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Çѱ¹ÀܵðÇÐȸ / v.15, no.2, 2001³â, pp.65-76
ÀÏÁ¶½Ã°£ Á¶ÀýÀÌ Àܵð(Zoysia japonica)ÀÇ ¹°Áú»ý»ê°ú »ýÀå¿¡ ¹ÌÄ¡´Â ¿µÇâ
( Effect of Dry Matter Production and Growth Construction of Zoysia japonica on a photoperiod )
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Àܵð(Zoysia japonica)ÀÇ 1Â÷ »ý»ê¼º°ú ±¤Á¶°Ç°úÀÇ »óÈ£ÀÛ¿ëÀ» Æò°¡ÇÏ°í »ý¸®»ýÅÂÇÐÀûÀΠƯ¼ºÀ» ±Ô¸íÇϱâ À§ÇÏ¿© ÀÏÁ¶½Ã°£À» Á¶ÀýÇÑ »óÅ¿¡¼­ Àΰø±º¶ôÀÇ ¹°Áú»ý»ê°ú ¼ºÀåÇØ¼®¿¡ ¹ÌÄ¡´Â ¿µÇâ¿¡ ´ëÇÏ¿© ºÐ¼®ÇÏ¿´´Ù. ±× °á°úÀÇ ¿ä¾àÀº ´ÙÀ½°ú °°ÀÌ ÇÏ¿´´Ù. 1. RGRÀº °¢ ½ÃÇ豸°øÈ÷ ÀÌ½Ä ÈÄ 20Àϰæ±îÁöÀÇ »ýÀå°úÁ¤¿¡¼­ ³ô°Ô ³ªÅ¸³µ°í ÀÌÈÄ »ýÀåÀÌ ÁøÇàµÊ¿¡ µû¶ó ³·¾ÆÁö´Â °æÇâÀ» º¸¿´´Ù. ÃÖ°íÄ¡´Â Control¿¡¼­ ÀÌ½Ä ÈÄ 20Àϰú 20ÀÏ»çÀÌÀÇ »ýÀå°úÁ¤¿¡¼­ 2.13g/g.10-days·Î ³ªÅ¸³µÀ¸¸ç ±¤Á¶»ç ½Ã°£ÀÌ ÂªÀ»¼ö·Ï ÀÌ½Ä ÈÄ Ãʱâ»ýÀåºÎÅÍ ÇöÀúÈ÷ ³·Àº Ä¡¸¦ º¸¿´À¸¸ç ªÀº ½Ã°£ ÀÚ¿¬±¤ Á¶»ç°¡ RGRÀ» ÇöÀúÈ÷ ÀúÇϽÃŰ´Â °á°ú¸¦ º¸¿´´Ù. 2. NARÀº 3½Ã°£ ±¤Á¶»ç±¸¸¦ Á¦¿ÜÇÑ °¢±¸ °øÈ÷ÀÌ½Ä ÈÄ Ãʱ⠻ýÀå°úÁ¤¿¡¼­ ³ôÀº Ä¡¸¦ º¸¿´°í, ÀÌÈÄ »ýÀåÀÌ ÁøÇàµÊ¿¡ µû¶ó ³·Àº Ä¡¸¦ ³ªÅ¸³»¾úÀ¸¸ç ÃÖ°íÄ¡´Â Control±¸¿¡¼­ 35g/$m^2$ 10days·Î ³ªÅ¸³µ´Ù. ±¤Á¶»ç ½Ã°£ÀÌ ÂªÀº¼ö·Ï ÇöÀúÈ÷ ³·Àº Ä¡¸¦ º¸¿´À¸¸ç ƯÈ÷ 3½Ã°£ ±¤Á¶»ç±¸¿¡¼­´Â Ãʱâ»ýÀåºÎÅÍ ÇöÀúÈ÷ ³·Àº Ä¡¸¦ ³ªÅ¸³»¾ú°í º¯È­µµ °¨¼ÒÇÏ¿´´Ù. LAI¿Í´Â ¿ª»ó°ü, RGR°ú´Â Á¤ÀÇ »ó°ü°ü°è¸¦ ³ªÅ¸³»¾ú´Ù. 3. LARÀº Control±¸¿Í °¢ ÀÏÁ¶½Ã°£ Á¶Àý±¸¿¡¼­´Â ±¤Á¶»ç ½Ã°£ÀÌ ÂªÀ»¼ö·Ï À̽ÄÃʱâºÎÅÍ ÇöÀúÈ÷ ³ôÀº LARÄ¡¸¦ º¸¿´°í, ƯÈ÷ 3½Ã°£ ±¤Á¶»ç±¸¿¡¼­´Â ÇöÀúÈ÷ ³ôÀº Ä¡¸¦ º¸¿´À¸³ª »ýÀå°úÁ¤¿¡ µû¸¥ Áõ°¡À²Àº ³·°Ô ³ªÅ¸³µ´Ù. LARÀº RGR°ú NAR¿¡ ´ëÇÏ¿© ¿ªÀÇ »ó°ü°ü°è¸¦ ³ªÅ¸³»¾ú´Ù. 4. CGRÀº °¢±¸ °øÈ÷ ÀÌ½Ä ÈÄ 50ÀϱîÁö´Â »ýÀåÀÌ ÁøÇàµÊ¿¡ µû¶ó Áõ°¡ÇÏ¿´°í ÀÌÈÄÀÇ »ýÀå°úÁ¤¿¡¼­´Â ³·¾ÆÁö´Â °æÇâÀ» º¸¿´À¸¸ç ÃÖ°íÄ¡´Â 1.56g/$ extrm{cm}^2$10days·Î Control±¸¿¡¼­ ÀÌ½Ä ÈÄ 60Àϰ濡 ³ªÅ¸³µ´Ù. LAI¿Í´Â Á¤ÀÇ »ó°üÀ» ³ªÅ¸³»¾ú°í ÃÖÀû¿±¸éÀûÁö¼ö Control±¸¿Í 9½Ã°£, 7½Ã°£, 5½Ã°£ ¹× 3½Ã°£, ÀÏÁ¶½Ã°£ Á¶Àý±¸¿¡¼­´Â °¢°¢ 1.87, 1.12, 0.83, 0.18·Î ³ªÅ¸³µ´Ù.
This study was designed to estimate on the interaction of the first productivity, light condition and to examine the ecophysiological characteristics of Zoysia japonica. rtificial community of Zoysia japonica was analyzed effect of matter production and growth construction under various shading condition. The results summarized this experiment were as follows; 1. The relative growth rate (RGR) in all experimental plots was high during the growth stage of 20 days after transplanting, and then decreased. The maxium RGR value appeared in the control plot (2.13g/g. 10days) during the growth stage from 10 to 20 days after transplating. RGR value in server shading of short day condition was remarkably decreased from the early growth stage. The main factor to lower RGR value considered as a short day condition than that of shading. 2. The net assimilation rate (NAR) in all experimental plots except 3hour photoperiod plot was high during the early growth stage after transplanting, and then decreased early growth stage after transplanting, and then decreased as the growth proceeded. The maxium value appeared in the control plot (35g/g. 10days). NAR value in the severe shading of short day condition plots was low. Especially, NAR value in the three hours photoperiod plot was remarkably low from the early growth, there was no great difference by growth stage. NAR had negative correlation with LAI and positive correlation with RGR. 3. The increasing rate of leaf area ratio(LAR) was high during the early growth stage after transplanting in the control plot and in the photoperiod plot, the shorter the exposure time to sunlight, the higher the LAR value from the early growth stage. Especially, its value in the 3 hour photoperiod plot was remarkably high but its increasing rate was lower as the growth proceeded. LAR hade negative correlation on RGR and NAR. 4. The crop growth rate(CGR) in each experimental plot was increased until 50 days after transplanting, and then decreased. After that time, the maxium CGR value appeared in the control plot (1.56g/$ extrm{cm}^2$. 10-days), 60 days after transplanting, CGR had positive correlation with LAI. The optimum LAI in the control, 9 hour, 7 hour, 5 hour, and 3 hour photoperiod plots appeared as 1.87, 1.12, 0.83, and 0.18.
 
Ű¿öµå
Zoysia japonica;photoperiod;growth construction;
 
Çѱ¹ÀܵðÇÐȸÁö / v.15, no.2, 2001³â, pp.65-76
Çѱ¹ÀܵðÇÐȸ
ISSN : 1229-3253
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200111920935952)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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