ELECTRON MICROSCOPIC EVIDENCE OF THE ASSOCIATION OF PHYTOPLASMA WITH ONION PHYLLODY DISEASE

摘要

Onion (Allium cepa L) is an important vegetable crop grown commercially in India. All parts of the crops are being consumed and it is known to possess high medicinal value. During the year 1992 few plants of Allium cepa were found to exhibit phyllodysymptoms in the farmers field at Patur of Akola District, Maharastra. The disease incidence varied from 0.43 to 2% in 5 acres of crop. The investigations were therefore undertaken to find out the causal agent through electron microscopy and the results are presented in this communication.