Variations of cob rot infection caused by Fusarium verticillioides in the Filial 1(F1) hybrid maize line

Abstract

Abstract The study of infection variations of the cob rot disease caused by Fusarium verticillioides on the hybrid maize line Filial 1(F1) aimed to determine the variation of infection of corn cob rot disease caused by F. verticillioides. This research was carried out in Sinoa District, Bantaeng Regency from November 2020 to February 2021. Research design used was randomized Block Design with 3 replications. The treatment were Filial line (F1) of 6 lines (D71, D72, D73, D74, BMD75, D76) and 4 commercial varieties Indonesia (Pioner 36, BISI 2, BISI 18, P36, and NK22). Bisi 2 was used as susceptible check variety and NK 22 as a resistant check. The response of lines D71, D72, D74 and D75, were classified moderately resistant to cob rot disease F. v erticilliodies, infected with 30.66%, 32.66%, 33.33% and 28.00%, respectively. Strains D73 and D76, classified as susceptible (47.33% and 46.66%). BISI 2 was very susceptible (62.33% and 63.66%) and NK 22 was resistant (13.33%-14.00%) The variable of infected cobs showed D71, D72, D74 and D75 (27.53%-32.13%) significantly lower compared D73 and D76 (52.56%-44.76). %). Susceptible varieties Bisi 2 (63.06%-62.43%). Asymptomatic seeds (asymptomatic) can achieve internal infection of F. Verticilliodies seeds, ranging from 14.00%-16.33%.