The characteristics of germination and seedling emergence of several grasses seeds with different vigor

Abstract: Present study investigated the seed germination, seedling emergence and relative parameters of several grasses seeds with different aging treatment, and further analyzed their relationships. The results indicated that: 1) In addition to Leymus chinensis, as the aging duration prolonging, germination percentage, seed germination index, vigor index, radicle length, plumule length, sprout length, emergence percentage, seedling emergence rate of the other species decreased; 2) Seed antiaging ability varied with species, seed dormancy might improve seed antiaging, such as L. chinensis; 3) Except L. chinensis, sprout tendency, germination percentage, germination index, vigor index, radicle length, plumule length, sprout length showed a significant correlation with seed emergence percentage and seedling emergence rate (P0.01); 4) Germination percentage was a better indicator used to seed vigor batch division compared with the other germination parameters.