| Popis: |
In the present study an attempt has been made to establish the fate of sporangia ofSclerospora graminicola (Sacc.) Schroet deposited in the soil. A technique has been standardised to demonstrate the germination of sporangia and the viability and infectivity of zoospores in the soil under laboratory conditions. For how long the zoospores remain motile in the soil is one of the many unanswered questions in the zoospore biology. From the present study it is seen that, the sporangia can germinate in the soil and liberate zoospores. The zoospores can move against gravity, remain viable and infective for 5 hrs in the soil. Survival of zoospores in the soil indicated that, they may serve as a potential secondary source of inoculum through soil under field conditions. |
