Twins and Triplets in Pearl Millet: their Cytology and Origin

Multiple radicles and plumules were produced in high frequenciesin selfed seed of six plants in pearl millet (L.S. 326–3).Ninety-five of these survived to maturity. All were diploids,except in one twin where a trisomic (2n+1) was found. The occurrenceof albino twins in progenies of heterozygous plants, and normalhomozygotes in twins from translocation heterozygotes suggeststheir origin through sexual reproduction. The origin of theremaining twins and triplets is not known with certainty. Pennisetum americanum, twins, triplets, tertiary trisomy, translocation hybridity