Vol. 12, Special Issue 8 (2023)

Author(s):
Harshal P Patel and Lalit Mahatma

Abstract:
To know the status of the Mungbean yellow mosaic virus, during the summer 2019 a roving field survey was conducted in different districts of South Gujarat and a fixed plot survey was conducted at the Farm of Pulses and Castor Research Station, Navsari Agricultural University, Navsari. The results of the roving field survey revealed that the percent disease incidence ranges from 0.00 to 99.60. The highest average percent disease incidence of 14.48 percent was recorded in Valsad district, followed by Dangs, Tapi, Surat and Navsari districts with 10.49, 8.38, 6.43 and 1.63 percent, respectively. The recently released varieties of mungbean, GM-6 and GM-7, were found to be resistant in all of the surveyed villages. Among the surveyed villages, Hathuka of Tapi district and Chival of Valsad district had maximum PDIc of 99.60 and 96.0 percent, respectively. The results of the fixed plot survey revealed that the Mungbean yellow mosaic virus starts with the emergence of the first trifoliate leaf and constantly increases until it covers the entire field. The percent disease incidence of the fixed plot survey range was from 0.0 to 94.00 percent.