中稻纹枯病对再生稻的影响研究

ON THE RELATIONSHIP BETWEEN SHEATH BLIGHT INCIDENCE OF SPRING-SOWN RICE AND THE YIELD OF ITS RATOONING PLANTS

前季稻的纹枯病可严重影响再生稻潜伏芽的成活、伸长和产量。蓄留再生稻时,必须注意前季稻纹枯病的防治。

Statistical analysis of the data in a study where marked rice plant estimation and fieldplot experiment were made showed a significant relationship between sheath blight(Pellicularia sasakii)incidence of spring-sown rice and the yield of its ratooning plants.This disease seriously affected the survival,elongation and grain yield of the latent buds ofthe rice.Therefore,sheath blight should be watched out for and controlled if a satisfactoryyield is expected from the ratooning plants of rice.