Physiological quality of peanut forage seeds submitted to different storage times and environments

Abstract

The successful establishment and production of pasture depends on a good seed quality, and the seed represents only about 10% of the total cost of the pasture formation. Considering this fact, the aim of the present study was to compare different times (0; 4; 8 and 12 months) of storage (BOD set at 10ºC), (Refrigerator 00ºC ± 5°C) and (Lab at 26ºC ± 3ºC) in seeds of Arachis pintoi cv. Amarillo. The seeds used were treated with the fungicide Vitavax-Thiram ® [Active Ingredient (carboxin + thiram): 200 + 200g / L] at a dosage of 300ml of fungicide diluted in 500mL of water to 100kg of seeds. The experimental design was in completely randomized blocks (DBC), arranged in a 4x3 factorial scheme with four storage times (0; 4; 8 and 12 months), three environments (Lab, Refrigerator and B.O.D.) with four repetitions. The results were submitted to analysis of variance, the regression and the means were compared by the Tukey test and F, at 5% probability. The seeds stored at low temperatures, even in the highest storage time studied, maintain their physiological quality, indicating that low temperatures have a positive effect on seed conservation.