Histological and histochemical causes of male sterility in two cytoplasmic-genic male sterile lines of rice (Oryza sativa L.)

Yogeesha, H.S.; Mahadevappa, M.

Indian Journal of Genetics and Plant Breeding 55(1): 58-64


ISSN/ISBN: 0019-5200
Accession: 002859517

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The anthers of cytoplasmically-genetically male sterile (CMS) rice lines V20A and Pragathi and their maintainer lines grown at Bangalore during 1990 were compared histologically and histochemically. Both CMS lines only differed from their maintainer lines at the postmeiotic stages. There were abnormalities in the tapetum and endothecium in both CMS lines. Anthers from the CMS lines also had lower insoluble polysaccharides, proteins and RNA content than the maintainer lines.