Variability in different isolates of Penicillium italicum causing  blue mould rot in orange (Citrus reticulata)

Meera  Choudhary; G S Rathore; D R  Bajya; A K  Pathak

doi:10.48165/

Authors

Meera Choudhary College of Agriculture (SKNAU, Jobner), Peethampuri, Neemka Thana, Rajasthan, India
G S Rathore Emeritus Professor, Department of Plant Pathology, SKNAU 303329, Jaipur, Rajasthan
D R Bajya College of Agriculture (SKNAU, Jobner), Peethampuri, Neemka Thana, Rajasthan, India
A K Pathak Principal at Lords College, Alwar

DOI:

https://doi.org/10.48165/

Keywords:

Morphological, Pathological, Isolates, Blue mould rot, Cultural variability

Abstract

Seven isolates of blue mould fungi (Penicillium italicum), causing blue mould rot on orange (Citrus reticulata Blanco) isolated from Jobner region exhibited variable growth on artificial culture media (PDA). The PI-1 appeared as dark green centre with white periphery. The other isolates had different colony characters with green to light blue centre surrounded by cottony to profuse colony peripheries. The disease intensities of blue mould isolates were also variable. The PI-1, PI-2 and PI-3 were at par, while maximum intensity (57.76 %) was recorded in PI-1 and minimum (21.12 %) in PI-7.

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