C₁₃ Generation in Autotetraploid Sweet Clover

Cytomorphological studies were carried out in advanced generation (C₁₃) autotetraploid Melilotus alba to find out the extent of meiotic stabilization and its correlation with vigour and fertility. In spite of greater degree of meiotic regularization, the seed fertility is still 54% to their diploid progenitors even after 12 years of selection. This leads to the conclusion that some factors other than meiotic anomalies are responsible for poor fertility in autotetraploid sweet clover.