이삭도열병 발병정도가 벼 수량 및 품질에 미치는 영향

초록

Correlation between the rice panicle blast and the rice quality and yield was evaluated in field experiments. Results showed that there were high positive correlations between the disease incidence and the rice yield and quality. The correlation coefficients between the disease incidence and the yield of Jinmibyeo, an early maturing cultivar and Juanbyeo, an middle maturing cultivar were R2=0.6518 and R2=0.7977, respectively. As the disease incidence increased weight of 1,000 grains of the two cultivars decreased showing coefficients R2=0.6848 and R2=0.7841, respectively. Percentage of matured grains in healthy plots were 95 and 98%, however, as the disease incidence increased percentage of matured rice grains decreased showing R2=0.4745 in Jinmibyeo and R2=0.703 in Juanbyeo. As the disease increased, rate of the damaged rice also increased, showing R2=0.6607 in Jinmibyeo and R2=0.6706 in Juanbyeo, respectively.

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