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Çѱ¹ÀܵðÇÐȸ / v.21, no.2, 2007³â, pp.113-126
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°ñÇÁÀå Çѱ¹ÀܵðÀÇ Rhizoctonia solani AG2-2¿¡ ÀÇÇÑ Large Patch ¹ß»ý Åä¾ç¿¡¼ ±Ù±Ç ¹Ì»ý¹°°ú ¹«±â¿µ¾ç Æò°¡
( Soil Mineral Nutrients and Microbes Are Responsible for Large Patch Disease Caused by Rhizoctonia solani AG2-2 in Zoysiagrass Turf ) |
| ÀåÅÂÇö;·ù¿¬ÁÖ;À̿뼼; »óÁÖ´ëÇб³ »ý¸íÀÚ¿ø´ëÇÐ ½Ä¹°ÀÚ¿øÇаú;´ë±¸´ëÇб³ »ý¸íȯ°æ´ëÇÐ »ê¾÷¹ÙÀÌ¿À;´ë±¸´ëÇб³ »ý¸íȯ°æ´ëÇÐ »ê¾÷¹ÙÀÌ¿À;
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| °ñÇÁÀåÀÇ Çѱ¹ Àܵ𿡼 Rhizoctonia solani AG2-2¿¡ ÀÇÇØ ¹ß»ýµÇ´Â large patchÀÇ ±Ù±ÇÅä¾ç°ú °ÇÀü ÀܵðÀÇ ±Ù±Ï Åä¾ç »ùÇÃÀ» hole cutter (diameter $10;cm;{ imes};8;cm$ deep)À» ÀÌ¿ëÇÏ¿© »ùÇÃÀ» äÃëÇÏ¿© ¹«±â¼ººÐ°ú ¹Ì»ý¹°À» Á¶»çÇÏ¿´´Ù. Large patch¿Í °ÇÀü ÀܵðÀÇ ºÐ»êºÐ¼® °á°ú $NO_3$-N(P=0.05), NH4-N(P=0.1) ¹× K(P=0.1) ÇÔ·®¿¡¼ Áß¿äÇÑ À¯ÀÇÂ÷À̸¦ º¸¿´´Ù. Large patch°¡ ¹ß»ýÇÑ Åä¾ç¿¡ $NO_3$-N ÇÔ·®Àº 9.49 mg/kg·Î °ÇÀüÇÑ ÀܵðÀÇ Åä¾ç 7.02 mg/kg º¸´Ù ³ô¾Ò´Ù. ¹Ý¸é, $NH_4$-NÀÇ ÇÔ·®Àº large patch ¹ß»ýÇÑ Åä¾çÀÌ 12.02 mg/kgÀ¸·Î °ÇÀüÇÑ ÀܵðÀÇ ±Ù±Ç Åä¾ç 14.40 mg/kg º¸´Ù ³ô¾Ò´Ù. K ÇÔ·®Àº large patch Åä¾çÀÌ °ÇÀüÇÑ ÀܵðÀÇ Åä¾çº¸´Ù ³·¾Ò´Ù. ±Ù±Ç Åä¾çÀÇ ¹Ì»ý¹° Áý¶ô ¼ö¸¦ Á¶»çÇÏ¿© ºÐ»ê ºÐ¼®ÇÑ °á°ú Pseudomonas spp Áý¶ô ¼ö¿¡¼ Áß¿äÇÑ À¯ÀÇÂ÷ÀÌ(P=0.05)¸¦ º¸¿´´Ù. Large patch°¡ ¹ß»ýÇÑ Åä¾ç¿¡ ¹Ì»ý¹°ÀÇ Áý¶ô ¼ö°¡ °ÇÀüÇÑ ÀܵðÀÇ Åä¾ç¿¡ ºñÇÏ¿© ³·¾Ò´Ù. ÀÌµé °á°ú´Â ±Ù±Ç Åä¾ç¿¡ °ú´ÙÇÑ $NO_3$-N, $NH_4$-N ¹× K ÇÔ·®°ú Åä¾ç¹Ì»ý¹°ÀÇ ¹Ðµµ´Â large patch ¹ßº´°ú °ü·Ã ÀÌ ÀÖÀ» ¼ö ÀÖ´Ù°í »ç·áµÈ´Ù. |
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| Mineral nutrients and population dynamics of soil microbes in the root zones of zoysiagrass infected by Rhizoctonia solani AG2-2 and that of healthy plants were sampled from ten golf courses using a cup cutter(diameter $10;cm;{ imes};8;cm$ deep). Analysis of variance(ANOVA) showed significant differences in content of $NO_3$-N(P = 0.05), $NH_4$-N(P = 0.1), and K(P = 0.1) between infected and healthy samples. The content of $NO_3$-N in the soils of large patch was 9.49 mg/kg and that in soil of health¥ã plants was 7.02 mg/kg. However, the content of $NH_4$-N in the soil of large patch was 12.02 mg/kg whereas 14.40 mg/kg for the soil under the healthy plants. The content of K in the soil of large patch was lower than that of soil of healthy plants. There was few numbers of Pseudomonas colonies In the soils of large patch compared to that of healthy plants. These results indicated that the content of $NO_3$-N, NH4-N, and K and the microbial population dynamics in root zones correlated to occurrence of large patch. |
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| Ű¿öµå |
| Áú»ê¿°;¾Ï¸ð´½;±Ù±Ç;Çѱ¹Àܵð;nitrate;ammonium;pseudomonas;rootzone;zoysiagrass; |
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Çѱ¹ÀܵðÇÐȸÁö / v.21, no.2, 2007³â, pp.113-126
Çѱ¹ÀܵðÇÐȸ
ISSN : 1229-3253
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200720055490072)
¾ð¾î : ¿µ¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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