Zonal Agricultural Research Station, University of Agricultural Sciences, Bengaluru- 560 065
*E-mail: kavalikaruna@yahoo.co.in
Online published on 25 March, 2015.
Oidium state of Erysiphe cichoracearum DC was identified as the incitant of powdery mildew of sunflower. Among the sunflower hybrids released from UAS, Bengaluru, Hybrid KBSH 53 was resistant to powdery mildew whereas, hybrid KBSH 44 was highly susceptible to powdery mildew. hybrids KBSH 1, KBSH 41 and KBSH 42 were found susceptible to powdery mildew. The highly susceptible hybrid recorded higher sized conidia. While, the resistant hybrid recorded significantly least conidial dimensions. The results obtained on the conidial measurement of E. cichoracearum. collected among different sunflower hybrids revealed that the length of the conidia ranged from 23.53 μm to 32.17 μm and the breadth ranged from 13.93 μm to 17.95 μm.
Powdery mildew, sunflower, hybrid, Erysiphe cichoracearum, conidia
