Investigations of two kinds of cytoplasmic male sterility in rapeseed (Brassica napus L.)

Bartkowiak Broda, I.; Rousselle, P.; Renard, M.

Genetica Polonica 20(4): 487-497


Accession: 000686669

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In progeny of crosses between the Polish spring cultivar Bronowski as male parent and other spring varieties as female, pollen developed late and the anthers were indehiscent; some morphological characters of the flowers were associated with this form of cytoplasmic male sterility. A second form of cytoplasmic male sterility, derived from radish and transferred by means of successive crosses with cabbage and various rapes, resulted in atrophied anthers and degeneration of the tapetum and microspores after the tetrad stage. Meiosis was irregular.