1 Ascospore analysis suggested that the fungus is homothallic but will preferentially outcross.

2 This paper reports the nutritional conditions affecting yeast's ascospore formation.

3 A cross was made between two isolates of Magnaporthe grisea, CH63 and TH16. A total of 78 ascospore isolates were tested for pathogenicity on 36 rice varieties.

4 The isolation of pure culture by using hyphal, stipe, stroma and ascospore obtained the pure culture of conidium phase.

5 The thesis poses the simple and rapid method of dotteretiationbetween the vegetative cell and It's ascospore.