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Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸ / v.19, no.4, 2006³â, pp.480-487
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PEG¸¦ ÀÌ¿ëÇÑ priming 󸮰¡ °í·Î¼è³ª¹« Á¾ÀÚ ¹ß¾Æ¿¡ ¹ÌÄ¡´Â ¿µÇâ
( Effect of Priming Treatment Using PEG on Seed Germination in Acer mono Max. ) |
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| º» ¿¬±¸´Â ¹ß¾ÆÀ²ÀÌ ³·°í ¹ß¾Æ°¡ ºÒ±ÕÀÏÇÒ »Ó¸¸ ¾Æ´Ï¶ó ¹ß¾Æ¼Ò¿ä±â°£ÀÌ ±ä °í·Î¼è³ª¹« Á¾ÀÚÀÇ ¹ß¾ÆÀ² ¹× ¹ß¾Æ¼Óµµ¸¦ Çâ»ó½Ã۰íÀÚ PEG¸¦ ÀÌ¿ëÇÑ priming 󸮸¦ ½Ç½ÃÇÏ¿´´ø ¹Ù ±× °á°ú¸¦ ¿ä¾àÇÏ¸é ´ÙÀ½°ú °°´Ù. ¼öºÐÆÛÅÙ¼ÈÀ» 0, -0.25, -0.5, -1.0, -2.0MPa·Î °¢°¢ Á¶ÀýÇÑ PEG ¿ë¾×¿¡ 3ÀÏ µ¿¾È ħÁö½ÃÄÑ priming ó¸®ÇÑ °í·Î¼è³ª¹« Á¾ÀÚ´Â ¹«Ã³¸®±¸¿¡ ºñÇØ priming 󸮱¸¿¡¼ ¹ß¾ÆÀ², Æò±Õ¹ß¾ÆÀϼö, ¹ß¾Æ¼Óµµ ¹× ¹ß¾Æ±ÕÀÏÁö¼ö°¡ Çâ»óµÇ¾ú´Ù. ƯÈ÷, -2.0MPa 󸮱¸¿¡¼´Â °¡Àå ³ôÀº È¿°ú¸¦ ³ªÅ¸³»¾ú´Ù. ¶ÇÇÑ priming 󸮴 ¹«Ã³¸®±¸¿¡ ºñÇØ ÈÞ¸éÀ²ÀÌ ³·°Ô ³ªÅ¸³ª ÈÞ¸éŸÆÄ¿¡ È¿°ú°¡ ÀÖÀ½À» ¾Ë ¼ö ÀÖ¾ú´Ù. Priming 󸮰¡ Á¾ÀÚ¹ß¾Æ »Ó¸¸ ¾Æ´Ï¶ó À¯¹¦È°·Â¿¡µµ ¿µÇâÀ» ¹ÌÄ¡´ÂÁö ¾Ë¾Æº¸°íÀÚ priming ó¸® ÈÄ ¹ß¾ÆµÈ Á¾ÀڷκÎÅÍ »ýÀåÇÑ À¯¹¦¸¦ ´ë»óÀ¸·Î »ó´ë»ýÀåÀ² ¹× T/RÀ²À» Á¶»çÇÑ °á°ú -2.0MPa 󸮱¸ÀÇ À¯¹¦¿¡¼ »ó´ë»ýÀåÀ²Àº °¡Àå ³ô°í T/RÀ²Àº °¡Àå ³·Àº °ÍÀ¸·Î °üÂûµÇ¾ú´Ù. ÀÌ·¯ÇÑ °á°ú·ÎºÎÅÍ -2.0MPaÀÇ ¼öºÐÆÛÅټȿ¡¼ 3ÀÏ µ¿¾È priming ó¸®ÇÏ´Â °ÍÀÌ °í·Î¼è³ª¹« Á¾ÀÚ¿¡ ÀÖ¾î °¡Àå ÇÕ¸®ÀûÀÎ Á¾ÀÚó¸® ¹æ¹ýÀ̶ó ÇÒ ¼ö ÀÖ¾ú´Ù. |
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| This study was conducted to improve the germination percent and germination speed by seed priming using polyethylene glycol (PEG) 8,000 solution on Acer mono seed because it has low and irregular germination characteristics. Seed priming was carried out under 0, -0.25, -0.5, -1.0 and -2.0 MPa of water potential at $20^{circ}C$ for 3 days. Primed seeds showed higher percent germination, germination speed, mean germination time (MGT) and germination performance index (GPI) than unprimed seeds. Especially, primed seed with -2.0 MPa of water potential had the highest germination properties. And primed seeds had a lower dormancy than the unprimed seeds. Relative growth rate and T/R ratio of seedling from primed seeds were measured to survey the effect of seed priming on the seedling vigor as well as seed germination. The seedlings from primed seeds at -2.0 MPa of water potential showed the highest relative growth rates of height and root collar diameter, however, the lowest value in T/R ratio. This study suggested that seeds priming at -2.0 MPa of water potential under $20^{circ}C$ for 3 days enhanced not only the percent germination, germination speed, MGT and GPI but also the vigor and growth of seedlings in Acer mono. |
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| Ű¿öµå |
| Acer mono;Priming;Germination property;Relative growth rate;T/R ratio; |
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Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸÁö / v.19, no.4, 2006³â, pp.480-487
Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸ
ISSN : 1226-3591
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200603043151412)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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