Abstract
벼 이삭마름병에 관여하는 진균의 종류로 일미벼에서는 Altemaria alternate(<TEX>$10.2\%$</TEX>), A. padwickii(<TEX>$5.2\%$</TEX>), Bipolaris oryzae(<TEX>$10.3\%$</TEX>), Nigrospora oryzae(<TEX>$5.2\%$</TEX>), Phoma sorghina (<TEX>$6.3\%$</TEX>) 등이 우점 하였으며,총 23종의 진균이 검출되었다. 대산벼에서는 A. alternate(<TEX>$9.6\%$</TEX>), Cladosporium sp. (<TEX>$7.5\%$</TEX>), Curvularia lunate(<TEX>$2.2\%$</TEX>), N. oryzae(<TEX>$15.1\%$</TEX>) 등이 우점 하였으며, 총 13종의 진균이 검출되었다. 또한 이삭마름병으로 벼알이 심하게 오염된 경우에는 일미벼 현미에서도 B. oryzae(<TEX>$15.5\%$</TEX>), A. alternate(<TEX>$5.5\%$</TEX>), Fusarium graminearum(<TEX>$8.0\%$</TEX>), N. oryzae(<TEX>$5.2\%$</TEX>), P. sorghina(<TEX>$4.5\%$</TEX>) 등이 높은 비율로 감염되어 있었다. In order to detect casual agents associated with ear blight of rice, seed samples of 'Ilmi-byeo' and 'Daesan-byeo', susceptible cultivars were collected from 28 regions on a nationwide scale. Finally 23 fungi including Bipolaris oryzae(<TEX>$10.3\%$</TEX>), Alternaria alternata (<TEX>$10.2\%$</TEX>), Cladosporium sp. (<TEX>$7.5\%$</TEX>), Nigrospora oryzae(<TEX>$5.2\%$</TEX>) and Phoma sorghina (<TEX>$6.3\%$</TEX>) from seeds of 'Ilmi-byeo', and 13 fungi including N. oryzae (<TEX>$15.1\%$</TEX>), A. alternata (<TEX>$9.6\%$</TEX>) and Curvularia lunata (<TEX>$2.2\%$</TEX>) from seeds of 'Daesan-byeo' were detected. In case of discolored seeds caused by rice ear blight, B. oryzae(<TEX>$15.5\%$</TEX>), A. alternata (<TEX>$5.5\%$</TEX>), Fusarium graminearum (<TEX>$8.0\%$</TEX>), N. oryzae(<TEX>$5.2\%$</TEX>) and P. sorghina (<TEX>$4.5\%$</TEX>) were detected even from the hulled rice of Ilmi-byeo.
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