Screening of cumin germplasm against Fusarium wilt under wilt-sick plot conditions

Abstract

Wilt caused by Fusarium oxysporum f. sp. cumini is the most serious disease of cumin (Cuminum cyminum L.) in India. Cumin germplasm was screened against Fusarium wilt at S. D. Agricultural University, Gujarat, India. Out of 105 genotypes evaluated, none of the genotype was found to be immune to wilt. The genotypes viz., JC-18-11 and GC-5-1 were highly resistant with a minimum wilt incidence of 5.00 per cent while the genotypes viz., JC-18-01 (17.25%), JC-18-07 (18.25%), GP-5 (20.05%) and GP-7 (20.00%) were resistant. The genotypes viz., JC-18-03 (25.15%), JC-18-05 (25.00%), JC-18-06 (25.00%), GP-3 (25.00%), GC-3(c) (25.06%), JC-2010-5 (30.25%), Sanand 5 (30.50%), Sanand 6(30.25%) and GP-4 (30.14%) were found moderately resistant. The genotypes viz., JC-18-04
(35%), GP-2 (35%), GC-5-2 (35%), GC-5 (c) (35%) JC-18-02 (40%), JC-2000-28-1 (40%), JC-16-07 (40%), JC-18-08 (45%), GC-4 (c) (45%) and J-Cum-2-2017 (50%) were found susceptible to the pathogen. The remaining germplasm accessions with the wilt incidence of more than 50% were susceptible to highly susceptible.