Relation of the Sporulating Ability on the Rice Plant to Some Other Characters in Blast Fungus Strains

Abstract

Differential blast fungus strains for identification of resistance genes in rice varieties were compared in relation to lesion-forming ability, sporulating ability on the host and on artificial media, and aggressiveness. Relative sporulating ability of fungus strains is different due to the host varieties and media used. Particularly, a negative correlation was noted between the amount of sporulation on the host and that on the oatmeal decoction sucrose agar medium.