|
|
|
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ / v.15, no.4, 2006³â, pp.377-384
|
Åä¾ç¼öºÐÁ¶°Ç ¹× ÈÇй°Áú󸮰¡ ¿ÀÀ̹¦ÀÇ Àú¿ÂÀåÇØ¿¡ ¹ÌÄ¡´Â ¿µÇâ
( Effects of Soil Moisture and Chemical Application on Low Temperature Stress of Cucumber (Cucumis sativus L.) Seedling ) |
| ³²À±ÀÏ;¿ì¿µÈ¸;À̰üÈ£; ¿ø¿¹¿¬±¸¼Ò;Çѱ¹³ó¾÷Àü¹®Çб³;Çѱ¹³ó¾÷Àü¹®Çб³;
|
|
|
 |
|
| |
| ÃÊ ·Ï |
| ¿ÀÀ̹¦°¡ Àú¿ÂÇÇÇØ¸¦ ÀÔ±â Àü, ÈÄ Åä¾ç¼öºÐÁ¶°Ç°ú ¸î °¡ÁöÀÇ ÈÇй°Áú󸮰¡ ¿ÀÀ̹¦ÀÇ ³ÃÇØ °æ°¨¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ¿¬±¸ÇÑ °á°ú Åä¾ç¼öºÐ -0.3bar Àû½À»óÅ¿¡¼ 07:00½Ã¿¡ $2^{circ}C$·Î Àú¿Â󸮸¦ ÇßÀ» ¶§, »ýÁ¸À²Àº 28.3%À̾úÀ¸³ª -5.5bar¿¡¼´Â 83.3%·Î ³ô¾ÆÁ® Åä¾ç¼öºÐÀÌ °ÇÁ¶Çϸé Àú¿ÂÇÇÇØ°¡ °¨¼ÒµÇ¾ú´Ù. ±×·¯³ª 18:00½Ã¿¡ Àú¿Âó¸®Çϸé -0.3bar¿¡¼µµ »ýÁ¸À²Àº 87% ÀÌ»óÀ̾ú´Ù. Åä¾ç¼öºÐÀÌ °ÇÁ¶ÇÏ¸é ¿±½ÅÀÇ ABAÇÔ·®Àº Å©°Ô Áõ°¡µÇ¾ú´Ù. Àú¿Âó¸® Àü, ÈÄ ABAÀÇ Åä¾ç ¹× ¿±¸é󸮴 ¿ÀÀ̹¦ÀÇ »ýÁ¸À²À» À¯ÀÇÇÏ°Ô Áõ°¡½ÃÄ×°í ¼¼Æ÷ÀÇ ÀüÇØÁú ´©Ãâ·®µµ ÇöÀúÇÏ°Ô °¨¼Ò½ÃÄ×À¸¸ç, ¼ö·®ÀÇ °¨¼Ò¸¦ °æ°¨½ÃÄ×´Ù. ¶ÇÇÑ ABA 󸮴 Àú¿Âó¸® Èĺ¸´Ù´Â Àú¿Âó¸® Àü¿¡, ¿±¸é󸮺¸´Ù´Â Åä¾ç¿¡ ó¸®ÇÏ´Â °ÍÀÌ º¸´Ù È¿°úÀûÀ̾ú´Ù. ABA($10^{-5}M$)¿Í ´õºÒ¾î ¿ä¼Ò(0.2%)¿Í $KH_2PO_4$ÀÇ ¿±¸é»ìÆ÷´Â ¿ÀÀÌÀÇ »ýÀå°ú ¼ö·®¿¡ ¹ÌÄ¡´Â Àú¿ÂÇÇÇØ¸¦ °æ°¨½Ã۴µ¥ È¿°úÀûÀ̾ú´Ù. |
|
| This study was conducted to investigate the effects of chemical application and amout of soil moisture on low temperature stress of cucumber seedling under the greenhouse conditions. When chilling treatments ($2^{circ}C$) were begun at 07:00AM, survival rates of seedlings of two conditions; -0.3 bar and -5.5 bar were 28.3% and 83.3% respectively. But when chilling treatments were begun at 6:00PM - even the soil moisture condition was -0.3 bar - the survival rate was above the 87%. When reducing the soil moisture from -0.3 bar to -9.0 bar, ABA content in leaf was inc.eased by 6.5fo1d. Spraying of abscisc acid (ABA) before or after the chilling significantly increased the survival rates of seedlings, decreased the amounts of leaking electrolytes and prevented the yield reductions. ABA application on the soil before the chilling appeared to be more effective than the application after the chilling with foliar spray. Spraying of ABA ($10^{-5}M$), urea (0.2%) or $KH_2PO_4$ was effective in counteracting the low temperature, which causes growth deterioration and yield reduction in cucumbers. |
| |
| Ű¿öµå |
| Àú¿Â;Åä¾ç¼öºÐ;ÈÇй°Áú;abscisic acid;chilling;soil moisture; |
| |
|
|
 |
|
»ý¹°È¯°æÁ¶ÀýÇÐȸÁö / v.15, no.4, 2006³â, pp.377-384
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
ISSN : 1229-4675
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200608506271149)
¾ð¾î : Çѱ¹¾î |
|
| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
|
|
|
|
|
|