首页|Selection of superior female parents utilizing B X R crosses for A-line development in pearl millet
Selection of superior female parents utilizing B X R crosses for A-line development in pearl millet
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NSTL
When breeding pearl millet [Pennisetum glaucum (L.) R. Br.] the development of superior B-lines can have more impact on increasing grain and/or forage yield than any other type of inbreeding, especially if the B-lines are used to develop cytoplasmicmale-sterile (CMS) lines (Hanna and Rai 1999). A desirable B-line should perform well so as to reduce the cost of seed production, maintain complete male sterility, have good general combining ability (gca), produce adequate pollen to maintain its isogenic A-line, and have the much-needed resistance to biotic and abiotic stresses that will make it a successful inbred line. In the process of developing new CMS lines, it would be advantageous to determine the combining ability of potential B-lines beforecommitting time and effort to sterilize all of the potential females (Schert and Johnson 1984; Rai and Singh 1987; Lee et al. 1992). The work reported here was an attempt to assess combining ability of newly developed downy mildew [Sclerospora graminicola (Sacc.) J. Schrot.] (DM)-resistant B-lines and to identify the B-lines suitable for conversion into malesteriles and for use.
NSTL
