Antagonistic bacteria strain B 916 against rice sheath blig ht was treated by UV and DES after natural screening.

• 对水稻纹枯病拮抗细菌B 916进行自然选育、紫外光和硫酸二乙酯诱变选育。 自然选育菌株Z 49的生长速度比原始B 916菌株提高了28.；6%25；拮抗性能提高了33 3%25。