Abstract
Chromatid-type aberrations were predominant at all levels of viability in the primary roots derived from lettuce seeds stored at moisture contents from 8.1% to 18.1%. In seeds stored at lower moisture contents (3.3 and 5.5%), although chromatid aberrations were predominant initially, there was a relative increase in the chromosome-type aberrations with loss of viability. The implications of these results are discussed in relation to the mechanism of production of chromosomal aberrations.
