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ABSTRACT
Objective: The objective of this research was to determine the importance of the harvest time, on the physical quality and viability of the seed by means of the tetrazolium test.
Design/methodology/approach: The research was conducted under a completely randomized experimental design, the viability in embryos was taken based on a 5-color staining pattern. An analysis of variance and the comparison of means by Tukey (P? 0.05) were performed with the SAS 9.2 program.
Results: The varieties under study showed significant differences in all the variables studied related to physical quality of seeds, such as volumetric weight and weight of 1000 seeds. The best seed viability was obtained in the harvest season of January.
Limitations of the study/implications:The results obtained are limited to the varieties, environmental conditions and the time in which the varieties were evaluated.
Conclusions: The harvest time has an effect on better seed physical characteristics and better viability evaluated with tetrazolium in the seeds of coffee varieties.