Induced mutagenesis in janeiro grass by ethyl-meta-sulfonate and its effect on spittlebug control; [Mutagênese induzida em grama de janeiro por etil-meta-sulfonato e seu efeito no controle da cigarrinha]

Villalva J.G.; Mora F.C.; Moran E.H.; de la Barra A.L.E.; Herrera I.C. · Revista de la Facultad de Agronomia (2022) · DOI: 10.47280/revfacagron(luz).v39.n3.04

Resumen

In this research, the median lethal dose (LD50 ) and resistance to spittlebug (Mahanarva andigena) were determined, using a mutagenizing agent ethyl meta-sulfonate (EMS) in Janeiro grass (Eriochloa polystachya Kunth) as a means to generate mutations. The study was carried out at the laboratory and greenhouse level, using a Complete Random Design (DCA) with ten treatments and three repetitions, which consisted of 5 doses of EMS (0.00%, 0.25%, 0.50%, 0.75% and 1.00%). for 2 impregnation times (24 and 48 hours). According to the results, the doses of ethyl meta-sulfonate (EMS) influenced the setting of the stolons of the janeiro grass, presenting a high rate of deflation in doses higher than 0.50%. Treatments with doses of 0.25% EMS at 48 hours achieved the best agronomic performance up to 95 days, where plant height had its best development with use close to that determined as DL50 (0.32%). The janeiro grass impregnated with EMS presented slight damage caused by the spittle. © The Authors, 2022, Published by the Universidad del Zulia.

Instituciones: Universidad Nacional Agraria La Molina