Comparison of methods for assessing the vigor of seed lots of triticale

In a program of seed quality assurance, the evaluation of seed vigor is fundamental and necessary to the global production process outcome. The objective of this experiment was to verify the efficiency of different vigor tests for evaluation of triticale seeds (X. triticosecale Wittmack) seeking the lots differentiation. Five lots of triticale seeds (cv. IPR 111) were submitted to the following evaluations: germination, first counting of germination test, cold test, electrical conductivity test (50 seeds into 50ml of water, at 25°C for 24 hours), accelerated aging test (43°C 48h-1) in distilled water (100% RH), and also seed water content. The test of electrical conductivity and potassium leaching was efficient to distinguish vigor of triticale.

X. triticosecale; electrical conductivity; cold test; accelerated aging