Identification of groundnut germplasm resistant to tikka disease in Gujarat

Abstract

Early and late leaf spots, caused by Cercospora arachidicola and Phaeoisariopsis personata, respectively are serious diseases of groundnut in Saurashtra region of Gujarat State. A total of 164 germplasms were screened along with susceptible check (GG-2) against both the diseases under natural epiphytotic conditions in kharif season to select resistant sources. The germplasms were scored using 1-9 scale at 90 days after sowing. The results indicate that no germplasm wasimmune or highly resistant to both the leafspots. Thirty six entriesshowed resistant reaction to the diseases.