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Çѱ¹ÀܵðÇÐȸ / v.6, no.2, 1992³â, pp.570-582
ÀܵðÀÇ ÀÙ¸¶¸§Áõ»ó(Yellow patch)À» ÀÏÀ¸Å°´Â 2ÇÙ¼º RhizoctoniaÀÇ µ¿Á¤ ¹× º´¿ø¼º
( Identification and Pathogenicity of Binucleate Rhizoctonia Isolates Causing Leaf Blight(Yellow Patch) in Turfgrass )
±èÁø¿ø;½É±Ô¿­;±èÈ£ÁØ;À̵ÎÇü; Çѱ¹Àܵ𿬱¸¼Ò;Çѱ¹Àܵ𿬱¸;Çѱ¹Àܵ𿬱¸;¼­¿ï½Ã¸³´ëÇб³ ȯ°æ¿ø¿¹Çаú;
 
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±¹³» °ñÇÁÀå¿¡ ½ÄÀçµÈ bentgrass (Agrostis palustris Huds), zoysiagrass (Zoysia japonica Steud) ¹× Kentucky bluegrass (Poa pratensis L.)¿¡ ÀÙ¸¶¸§Áõ»ó(yellow patch)À» ³ªÅ¸³»´Â º´¹Ý ºÎÀ§¿¡¼­ º´¿ø±ÕÀ» ºÐ¸®¤ýµ¿Á¤ÇÑ °á°ú 2ÇÙ¼ºÀÎ Rhizoctonia cerealis·Î µ¿Á¤µÇ¾ú´Ù. º´¿ø±ÕÀº ÀܵðÀÇ °üºÎ¿Í ¿±Á¶Á÷À» Ä§ÇØÇÏ¿´À¸¸ç, º´Â¡Àº bentgrassÀÇ °æ¿ì 1m ³»¿ÜÀÇ µÕ±Ù °í¸®¸ð¾çÀÇ º´¹ÝÀ» Çü¼ºÇϰí, º´¹Ý °¡ÀåÀÚ¸®ÀÇ ÀܵðÀÙÀº Ãʱ⿡´Â ºÓÀº»öÀ» ¶ì¸ç º´ÀÌ ÁøÀüµÊ¿¡ µû¶ó °¥º¯ÇÏ¿´´Ù. Zoysiagrass¿¡´Â Á÷°æ 30~40cmÀÇ ±Ù»ç¿øÇüÀÇ º´¹ÝÀÌ º½Ã¶ ¸Í¾Æ½Ã±â¿¡ ¹ß»ýÇϰí, º´¹Ý ºÎÀ§¿¡¼­´Â Àܵ𰡠¸Í¾ÆµÇÁö ¾Ê¾Ò´Ù. ¸Í¾ÆµÈ Àܵ𿡴 ºÎÁ¤ÇüÀÇ º²Â¤»ö ¹ÝÁ¡ÀÌ »ý±â¸é¼­ °í»çµÇ¾ú´Ù. Rhizoctonia cerealisÀÇ ±Õ»çÁ÷°æÀº 2.5~6.3$mu extrm{m}$(Æò±Õ 3.8$mu extrm{m}$)À̾úÀ¸¸ç, ±Õ»ç´Â ´ãȲ»öÀ» ¶ì°í, ±ÕÃÑÀÇ »öÀº ¹àÀº °¥»öÀ» ³ªÅ¸³Â´Ù. Monilioid cell Å©±â´Â 5.8~12.5$ imes$l3.8~37.5$mu extrm{m}$¿´À¸¸ç, ¹èÁö»ó¿¡¼­ Çü¼ºµÈ ±ÕÇÙÀÇ Å©±â´Â 0.2~2.0mm, ±ÕÇÙÀÇ »öÀº óÀ½¿¡´Â Èò»öÀ» ¶ì´Ù°¡ ¼º¼÷ÇØ°¡¸é¼­ °¥»öÀ» ³ªÅ¸³Â´Ù. ¿Âµµ¿¡ µû¸¥ ±Õ»çÀÇ »ýÀåÀº 23$^{circ}C$¿¡¼­ °¡Àå ¾çÈ£Çß´Ù. º´¿ø¼º °ËÁ¤ °á°ú ºÐ¸®±Õ°£¿¡ º´¿ø¼º¿¡´Â ´Ù¼Ò Â÷À̰¡ ÀÖ¾ú´Ù.
Yellow patch as leaf blight caused by binucleate Rhizoctonia occured in bentgrass (Agrostis Palustris Huds), zoysiagrass (Zoysia japonica Steud) and Kentucky bluegrass (Poa pratensis L.) from several golf couses in Korea. Binucleate Rhizoctonia was isolated from the infected lesions and was identified Rhizoctonia cerealis. Rhizoctonia cerealis infected crown, stem and leaf tissue, and the symptom was light yellow circular patch upto 1 m in diameter on bentgrass golf green. Individual infected leaf near the margin of patch developed first red and finally turn brown. As zoysiagrass lawn, the symptom was 30~40cm circular patch that occured zoysiagrass shooting time as spring, and there could not sheeted in severe lesion. In case of sheeted, zoysiagrass was first irregular leaf sopt and finally dead. Hypha diameter of Rhizoctonia cerealis was $2.5~6.3mu extrm{m}$(average $3.8mu extrm{m}$) and colar was white to buff. Monilioid cell size was $5.8~12.5$ imes$13.8~37.5mu extrm{m}$. Sclerotia size was 0.2~2.0mm and color was white to brown. Optium temperature for the hypha growth was $23^{circ}C$. There was a little difference in pathogenicity among the isolates.
 
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Çѱ¹ÀܵðÇÐȸÁö / v.6, no.2, 1992³â, pp.570-582
Çѱ¹ÀܵðÇÐȸ
ISSN : 1229-3253
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199211922436149)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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