Puccinia pathway

USEFUL INFO ABOUT THE SPREAD OF WHEAT RUST IN INDIA

1. PUCCINIA PATHWAY

2. QUEST FOR SURVIVAL OF UREDOSPORES Dr.K.C.Mehta & his associates through aeroscopic studies brought into light the mystery behind the spread of uredospores in the subcontinent.

3. EVENTS IN NEPAL I n central N epal wheat is sown during A ugust & harvested in January It gets infected by P.graminis during O ctober

4. The uredospores from central Nepal acts as the INOCULUM for the infection of main crop in the Northern plains.

5. U redospores travel to south via TERAI REGION

6. The wheat crops in northern plains are infected during February each year.

7. The uredospores travel to summer wheat crops of Nilgri & Puleny hills & also spreads to early sown crops of Mysore & other neiboughring places.

8. Fungi multiplies on summer hill crops & spreads to early sown crops in southern plains. The fungi multiplies & spreads Northward during October- November. The Gangetic plains are severely affected during February – March.

9. NEPAL October NORTHERN PLAINS FEB NILGRI HILLS DURING SUMMER SOUTHERN PLAINS EARLY SOWN