Abstract
ABSTRACTThe study of meiosis performed on 53 triploid Zea mays plants revealed the occurrence of 1.48 I per cell in metaphase I, an unbalanced disjunction of chromosomes in anaphase I (the 15-15 type being only 32.66% in frequency) and a relatively high frequency of laggards and micronuclei. Consequently, the pollen fertility is low (44.58%) and the offspring 3n plants shows forms with 17-42 chromosomes, with a clear predominance of hyper triploids (81.0%).Triploid plants display relatively low fertility, but they are not steril as it is the case with the triploids of other species, while the aneuploids of the offspring, with 27–42 chromosomes are viable.
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