SEED DORMANCY OF Paspalum notaram Flügger. notaram, ECOTYPE ANDRÉ DA ROCHA, UNDER DIFFERENT STORAGE CONDITIONS
Abstract
Seed germination is basic to good pasture implantation. The objective of this work was to evaluate germination ability of Paspalum notatum Flügge var. notatum seeds, ecotype André da Rocha, under distinct storage conditions: storage at 5° C in refrigerator, or in laboratory conditions. Sceds were submitted to the standard germination test and two methodologies to break dormancy: 1) imbibition in potassium nitrate (0,2 %); 2) manual scarification of the caryopsis. A split-plot experimental design was used with four replications of 50 seeds, for each storage condition and treatment. Storage conditions were treated as plots, and treatments as subplots. There were no differences in seed germination, regarding storage conditions and treatments to break dormancy (P>0,05). The KNO 3 treatment was the most efficient in breaking dormancy of seeds.
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