Characterization of Brown Midrib Mutants of Sorghum (Sorghum bicolor (L.) Moench)

Srinivasa Rao, P and Deshpande, S P and Blummel, M and Reddy, B V S and Hash, C T (2012) Characterization of Brown Midrib Mutants of Sorghum (Sorghum bicolor (L.) Moench). The European Journal of Plant Science and Biotechnology, 6 (SI 1). pp. 71-75. ISSN 1752-3842

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Abstract

Twenty brown midrib (bmr) mutants of sorghum (Sorghum bicolor (L.) Moench) were evaluated for agronomic traits, forage quality traits and the relationships between these traits. Potential fodder quality was assessed by laboratory analysis. Significant differences were observed among the bmr mutants (bmr1, 3, 6, 7, 8 and two new mutants) for stover yield, plant height, stover nitrogen (N) content, in vitro organic matter digestibility (IVOMD), metabolizable energy (ME) content and acid detergent lignin (ADL) content. The bmr mutants such as IS 23253, IS 21549, IS 23789 and IS 23787 had high stover yield coupled with better forage quality, hence these mutants can be exploited in future bmr hybrid breeding programs. All of these had reduced cinnamyl alcohol dehydrogenase (CAD) activity except for the new and uncharacterized bmr mutant, IS 23253, whose allelic relationship is yet to be determined.

Item Type: Article
Divisions: UNSPECIFIED
CRP: UNSPECIFIED
Uncontrolled Keywords: Acid detergent lignin, allelic relationship, biomass, in vitro organic matter digestibility, nitrogn content, stover quality, stover yield
Subjects: Mandate crops > Sorghum
Others > Agriculture-Farming, Production, Technology, Economics
Depositing User: Mr Siva Shankar
Date Deposited: 28 Sep 2012 05:45
Last Modified: 28 Sep 2012 06:31
URI: http://oar.icrisat.org/id/eprint/6155
Official URL: http://www.globalsciencebooks.info/JournalsSup/12E...
Projects: SWEETFUEL grant 22742, Grant no. 974
Funders: European Commission, International Fund for Agricultural Development(IFAD)
Acknowledgement: UNSPECIFIED
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