Identification of stable resistance to ergot in pearl millet

Thakur, R P and Rao, V P and Williams, R J and Chahal, S S and Mathur, S B and Pawar, N B and Nafade, S D and Shetty, H S and Singh, G and Bangar, S G (1985) Identification of stable resistance to ergot in pearl millet. Plant Disease, 69 (11). pp. 982-985. ISSN 0191-2917

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Abstract

hen >2500 Pennisetum americanum germ plasm accessions and c. 7300 advanced breeding lines were screened against Claviceps fusiformis all the latter were highly susceptible and only very low levels of resistance were detected in a few germ plasm accessions from India, Nigeria and Uganda. Resistant lines, developed by intermating relatively less-susceptible plants and pedigree selecting for several generations under high disease pressure, were evaluated through a cooperative international multilocational testing programme, the International Pearl Millet Ergot Nursery, to determine their resistance stability. Seven inbred lines (ICMPE numbers) and 6 sib-bulk populations (ICMPES numbers) evaluated at 8-12 locations for 2-3 yr in India and West Africa showed consistently high levels of resistance. Mean ergot severities in these lines across locations ranged from <1 to 7% compared with 30-65% in the susceptible check. These lines were also resistant to smut (Tolyposporium penicillariae) and downy mildew (Sclerospora graminicola) at ICRISAT Cent., Patancheru

Item Type:	Article
Divisions:	UNSPECIFIED
CRP:	UNSPECIFIED
Subjects:	Mandate crops > Millets
Depositing User:	Ms K Syamalamba
Date Deposited:	31 Oct 2011 06:19
Last Modified:	31 Oct 2011 16:26
URI:	http://oar.icrisat.org/id/eprint/3445
Official URL:	http://www.apsnet.org/publications/PlantDisease/Ba...
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	We wish to thank N.V. Sundaram and P.D. Thyagi, Samaru, Nigeria; K.J. Bindu, Aurangabad; H.R. Dave and N.A. Thakar, Jamnagar; D.P. Thakur, Hisar, and B.D. Patil, Pune, India, and the other pathologists who cooperated in the IPMEN project and provided data used in this paper, and S.D. Singh, pearl millet pathologist, ICRISAT, for his help in screening for downy mildew resistance in the multiple disease nursery at patancheru. We wish to thank S.B. King, principal pathologist, Pearl Millet Improvement Program, ICRISAT, for his useful comments on the manuscript and N.K. Ganapathy for assistance in typing.
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