Adaptability of IAC peanut genotypes to Mato Grosso Cerrado conditions

Abstract

Peanuts, which were previously restricted to sugarcane renovation areas in the state of São Paulo, the main producer, now encompasses another scenario, arousing the interest of producers from other regions. Thus, it is necessary to evaluate genotypes from the IAC Breeding Program under the conditions of the Cerrado Mato-Grossense. In this work, the adaptability and productivity of peanuts in pods under the conditions of Sorriso-MT were evaluated. For this, the experiment was carried out in completely randomized blocks, with 11 genotypes developed by the IAC (the cultivars IAC 503, IAC 505, IAC OL3, IAC OL5, IAC OL6, IAC Semper Verde and the lines IAC 1120, IAC 1127, IAC 1129, IAC 10719 and IAC 10677) and four repetitions. The plots were composed of four lines spaced 0.90 m apart and 4 m long. At 138 days after sowing, before harvesting, the severity of black spot (Cercosporidium personatum) was evaluated. Subsequently, the plants in the useful area were manually harvested to determine the pod yield, grain yield and mass of 100 grains. Data were subjected to analysis of variance using the F test and the treatment means were grouped using the Scott-Knott test at 5% probability. The tested genotypes showed no difference in productivity, but the productivity of genotype 10667 stands out, having potential as a new cultivar. The 100-grain mass, grain yield and severity of C. personatum differed between genotypes. Under the experimental conditions, all genotypes showed excellent productive adaptability and moderate incidence of disease and the cultivar IAC Semper Verde showed no incidence of black spot.