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Grain mold resistance in advanced sorghum B-lines

Author(s): P Sanjana Reddy | VP Rao | Belum VS Reddy | S Ramesh | RP Thakur

Journal: Journal of SAT Agricultural Research
ISSN 0973-3094

Volume: 1;
Issue: 1;
Start page: 3pp.;
Date: 2005;
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Keywords: seed weight | Sorghum bicolor | Cochliobolus lunatus | glumes | panicles | plant height | plant pathogenic fungi | colour | plant diseases | fungi | lines | flowering date | India | plant pathogens | crop yield | Andhra Pradesh | fungal diseases | disease resistance | seeds | correlated traits

Twenty-eight advanced sorghum B-lines were evaluated for resistance to grain mould [caused by Cochliobolus lunatus] in Andhra Pradesh, India, during the rainy season of 2003, along with resistant (IS 14384) and susceptible (Bulk Y and 296B) controls. Significant differences were observed among the 28 lines for grain mould reaction at grain physiological maturity (PGMR) and grain mould reaction on threshed grain (TGMR) scores, number of days to 50% flowering, plant height, grain hardness, grain mass and grain yield. SGMR 33-1, SGMR 33-2, SGMR 40-1 and SGMR 40-2 were on a par with the resistant control in terms of PGMR score but were superior with regard to grain yield (2.31-2.69 t/ha). These B-lines, besides flowering early (

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