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Identification of Stable Resistance to Smut in Pearl Millet

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Relation http://oar.icrisat.org/4922/
http://dx.doi.org/10.1094/PD-70-38
 
Title Identification of Stable Resistance to Smut in Pearl Millet
 
Creator Thakur, R P
Rao, K V S
Williams, R J
Gupta, S C
Thakur, D P
Nafade, S D
Sundaram, N V
Frowd, J A
Guthrie, J E
 
Subject Millets
 
Description More than 1,500 accessions from a germ plasm working collection and 6,200 advanced breeding lines were screened to identify resistance to smut in pearl millet. All advanced breeding lines were susceptible, but resistance was detected in several germ plasm accessions originating from Nigeria, Senegal, Mali, Cameroon, Uganda, Lebanon, and India. To combine resistance with agronomic eliteness, crosses were made between smut-resistant lines and agronomically elite inbred lines, and pedigree selection was carried out in the segregating generations up to the F6 generation under high disease pressure. Stability of resistance was tested through a multilocational testing program, the International Pearl Millet Smut Nursery (IPMSN). Selections from six germ plasm accessions (SSC FS 252-S-4, ICI 7517-S-1, ExB 132-2-S-5-2-DM-1, ExB 46-1-2-S-2, ExB 112-1-S-1-1, and P-489-S-3) and four, newly developed, smut-resistant, agronomically elite lines (ICMPS 100-5-1, 900-9-3, 1600-2-4, and 2000-5-2) showed consistently high levels of smut resistance for 1–6 yr at six or seven locations in India and West Africa. These lines had across-location mean smut severities of less than 5% compared with 35% or more in the susceptible checks. These lines were also resistant to downy mildew in India.
 
Publisher American Phytopathological Society
 
Date 1986
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/4922/1/PlantDisease70n01_38.pdf
Thakur, R P and Rao, K V S and Williams, R J and Gupta, S C and Thakur, D P and Nafade, S D and Sundaram, N V and Frowd, J A and Guthrie, J E (1986) Identification of Stable Resistance to Smut in Pearl Millet. Plant Disease, 70 (1). pp. 38-41. ISSN 0191-2917