The invention provides a
japonica rice
sheath blight resistance identification method, and belongs to the technical field of
plant disease resistance identification. The invention provides a method for identifying the
sheath blight resistance of
japonica rice. The method comprises the following steps: planting and culturing
japonica rice seeds to be detected in an intelligent
greenhouse, performing
sheath blight induction from a tillering end stage to a young ear differentiation stage, observing the
attack condition of the sheath
blight, measuring the average scab length of the
japonica rice to be detected, calculating the
disease index, and evaluating the sheath
blight disease grade of the
japonica rice. According to the method, the
japonica rice rapidly enters the tillering last stage, the
plant requirement of sheath
blight identification is met, and the identification period is remarkably shortened; the method can complete simultaneous identification of multiple varieties at the same time, is not limited by other conditions in the field, and reduces the influence of environmental factors, thereby improving the accuracy and
repeatability of sheath blight resistance screening. The banded sclerotial blight identification can be carried out for 3-4 times in one year, the dependence on professional equipment and large-area test fields is reduced, the method is more economical and universal, the identification efficiency is improved, and the identification cost is reduced.