Desempenho de sementes de arroz irrigado tratadas com dietholate isolado

Abstract

Rice seeds when treated with dieyholate, a protector, try the effect of the herbicide clomazone to become more selective, thereby facilitating the control of weeds, in addition to anticipating the sowing of the crop. The work aims to evaluate the effect of the protector in relation to different doses and storage time of these seeds (0, 15, 30, 45 and 60 days after treatment), in all at two temperatures (20 ° C and 25 ° C ). Containing six treatments, T1 without treatment; T2 Dietholate isolado T3 Fipronil + Carboxina + Thiram; T4 Fipronil + Carboxina + Thiram + Dietholate (4ml/100kg); T5 Fipronil + Carboxina + Thiram + Dietholate(5ml/100kg); T6 Fipronil + Carboxina + Thiram + Dietholate(6ml/100kg). The cultivars IRAG 424 RI, IRGA 431 and Guri were used. The following variables were evaluated: first germination count, germination, cold test and modified cold test of irrigated rice seeds. Seed treatment with dietholate alone and combined with fungicide and insecticide affects the germination potential and vigor of rice seeds in low temperature conditions and alone in ideal temperature conditions (25 ° C).