Mycelial combatability in Sclerotium rolfsii causing Stem rot Disease

Abstract

Sunflower (Helianthus annus) is one of the important oil seed crops in India, which belongs to the family Asteraceae (Compositae). In this study mycelial compatability there are two isolates were usually paired on one dish and the test was repeated at least twice. Totally 56 pairings were formed using the eight isolates of S. rolfsii. Out of 56 pairings, 40 were found to be normal intermingling without any antagonistic reaction. Induction of basidial stage conducted to study the ability of each S. rolfsii isolate to undergo sexual stage.