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Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸ / v.24, no.4, 2011³â, pp.438-444
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Çѱ¹»ê(ùÛÏÐß§) ´À¸¨³ª¹«¼Ó 3¼öÁ¾(â§ðú)ÀÇ Á¾ÀÚÀúÀ强(ðúíîÍíúàõ) ¹× ¹ß¾ÆÆ¯¼º(Û¡ä´÷åàõ)
( Germination Behaviors and Seed Longevities of Three Ulmus Species in Korea ) |
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| ¿ì¸®³ª¶ó¿¡ ÀÚ»ýÇÏ´Â ´À¸¨³ª¹«¼Ó 3¼öÁ¾[´À¸¨³ª¹«(Ulmus davidiana var. japonica(Rehder) Nakai), ºñ¼ú³ª¹«(U. pumila L.), Âü´À¸¨³ª¹«(U. parvifolia Jacq.)]ÀÇ ¿ÂµµÁ¶°Ç(4°³)¿¡ µû¸¥ ¹ß¾ÆÆ¯¼º(¹ß¾ÆÀ², Æò±Õ¹ß¾Æ¼Ò¿äÀϼö, ¹ß¾Æ¼Óµµ) ¹× °ÇÁ¶±â°£¿¡ µû¸¥ Á¾ÀÚ È°·ÂÀÇ º¯È¸¦ ºÐ¼®ÇÏ¿´´Ù. Á¾ÀÚ ¹ß¾Æ¿¡ ¹ÌÄ¡´Â ¿ÂµµÁ¶°ÇÀÇ ¿µÇâÀ» »ìÆìº¸¸é 3¼öÁ¾ ¸ðµÎ Æò±Õ¹ß¾ÆÀϼö¿¡¼ Â÷À̸¦ º¸¿´À¸³ª, ¹ß¾ÆÀ²¿¡¼´Â Âü´À¸¨³ª¹«¿¡¼¸¸ Åë°èÀûÀ¸·Î °íµµÀÇ À¯ÀǼºÀÌ ÀÎÁ¤µÇ¾ú´Ù. ´À¸¨³ª¹«¿Í ºñ¼ú³ª¹«´Â ¸ðµç ¿ÂµµÁ¶°Ç¿¡¼ ºñ±³Àû °í¸¥ ¹ß¾ÆÀ²À» º¸¿©ÁÖ¾úÀ¸¸ç, ƯÈ÷ ºñ¼ú³ª¹«´Â Àú¿Â(10~15$^{circ}C$)¿¡¼µµ ³ôÀº ¹ß¾ÆÀ²À» ³ªÅ¸³Â´Ù. Âü´À¸¨³ª¹«´Â Àú¿Â(10~20$^{circ}C$)¿¡¼´Â °ÅÀÇ ¹ß¾Æ°¡ µÇÁö ¾ÊÀ¸¸ç 25$^{circ}C$ ÀÌ»óÀÇ ³ôÀº ¿Âµµ¿¡¼ ¹ß¾Æ°¡ µÇ´Â µ¶Æ¯ÇÑ Æ¯¼ºÀ» ³ªÅ¸³Â´Ù. ºñ¼ú³ª¹«¿Í Âü´À¸¨³ª¹« Á¾ÀÚ´Â 4~8% ¼öºÐÇÔ¼öÀ² Á¶°Ç¿¡¼ ½Ã¼³ÀúÀåÀÌ °¡´ÉÇÑ ÀúÀ强 Á¾ÀÚ(Orthodox seed)·Î ÆÇ¸íµÇ¾úÀ¸¸ç, ´À¸¨³ª¹« Á¾ÀÚ´Â Àå±âÀúÀåÀÌ ¾î·Á¿î ³ÀúÀ强 Á¾ÀÚ(Recalcitrant seed)·Î ³ªÅ¸³µ´Ù. °á·ÐÀûÀ¸·Î ´À¸¨³ª¹«¼Ó 3¼öÁ¾ÀÇ ¹ß¾ÆÆ¯¼º ¹× ÀúÀ强ÀÇ Â÷ÀÌ´Â ¼öÁ¾º° ºÐÆ÷Ư¼º¿¡ µû¸¥ »óÀÌÇÑ È¯°æ Á¶°Ç¿¡ ÀûÀÀÇϱâ À§ÇÑ Á¾ ƯÀ¯ÀÇ »ýÁ¸ Àü·«À¸·Î ÆÇ´ÜµÈ´Ù. |
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| This study was conducted to investigate temperature effect on seed germination behaviors and seed viability changes by drying periods of three Ulmus species (Ulmus davidiana var. japonica (Rehder) Nakai, U. pumila L., and U. parvifolia Jacq.) distributed in Korea. Statistical analysis showed that temperature had a significant effect on mean germination time in three Ulmus species, but its effect on germination percentage was only shown in U. parvifolia (p<0.01). U. davidiana var. japonica and U. pumila germinated relatively consistent in all temperature conditions, especially the latter showed high germination behaviors in low temperatures (10-15$^{circ}C$). U. parvifolia germinated well in high temperature (25$^{circ}C$), while this species rarely germinated in low temperature conditions (10-20$^{circ}C$). The results confirm that seeds of U. pumila and U. parvifolia are orthodox seeds which can be stored under 4-8% moisture condition, and U. davidiana var. japonica seed is recalcitrant seed which is difficult to store for a long time. In conclusion, these differences of the germination behaviors for three Ulmus species seem to be adaptive regimes of their natural habitats, respectively. |
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| Ű¿öµå |
| Ulmus davidiana;U. pumila;U. parvifolia;Germination;Longevity; |
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Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸÁö / v.24, no.4, 2011³â, pp.438-444
Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸ
ISSN : 1226-3591
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201125136122593)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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