Studies on the Cytology and Fertility in the Induced Polyploids of Self-Incompatible <i>Brassica campestris</i> var. <i>Brown sarson</i>

Abstract

Cytological study of the induced polyploids of self-incompatible Brassica campestris var. brown sarson revealed the presence of multivalents, univalents, laggards, etc., which lead to irregular separation of chromosomes. However, quite a high percentage of cells showed normal distribution (20 chromosomes to each pole). The polyploid plants in C1 generation were self-compatible or partially self-compatible although the diploids were self-incompatible. The tetraploids had more seed setting than the diploid plants both on self-pollination and open-pollination.