The most utilized parameter to evaluate the physiological quality of seeds is the germination test. However, citrus seeds present slow germination and germination test may be extended for up to 60 days. In this way, the need for the development of rapid tests to estimate the viability of seeds appears. The evaluation of the physiological quality of citrus seeds by means of fast tests may be considered as an extremely helpful resource for seed-producing enterprises in the sense of enabling a faster and more efficient quality control. So, the objective of this research work was to adapt rapid test methodologies to determine the viability of Citromleo swingle seeds assessed in four storage periods. The tests of tetrazolium, of electric conductivity and of exudate pH (phenolphetaleine) were employed. The test of emergence on tray and germination pattern were utilized for comparing the results obtained in those above-quoted. The rapid tests for evaluating viability proved promising for germination monitoring and seedling emergence from the third month's storage and in the absence of dormant seeds emergence from the third month's storage.
physiological quality; seeds; citrus
