Molecular Characterization and Screening for Sheath Blight Resistance Using Malaysian Isolates of Rhizoctonia solani

Table 2

IRRI scoring schedule for sheath blight disease (Rhizoctonia solani) (0–9 scale).

Types	Symptoms shown
HR	No changes
R	Lesions limited to below of the leaf
MR	Lesions limited to below of the leaves
MS	Lesions present in more than of the leaves
S	Lesions present in more than of the leaf surface. Severe infection in upper leaves (2 branches of withered leaves)
HS	Lesions reach the tiller. Severe infection on all leaves and some plants were killed.

Description: HS: highly susceptible; S: susceptible; MS: moderately susceptible; MR: moderately resistant; R: resistant; HR: highly resistant.