Vol. 11, Issue 5 (2022)

Author(s):
Swathi B, Chattannavar SN, Krishnaraj PU, Jahagirdar S and Koti RV

Abstract:
Fifteen isolates of Macrophomina phaseolina were characterised on the basis of different colony and sclerotial characters to study the variability in the population. PCA analysis extracted three main components, No. of sclerotia / microscopic field, colony growth, and dry mycelial weight from the population that described the variability in the population most appropriately. The colony growth highly correlated with the No. of sclerotia / microscopic field and dry mycelial weight. The study has brought out variation in M. phaseolina, thus which further helps in identification of physiologic races in the pathogen.