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This article in CS

  1. Vol. 36 No. 1, p. 201-203
     
    Received: Aug 26, 1994
    Published: Jan, 1996


    * Corresponding author(s): s.d.singh@cgnet.com
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doi:10.2135/cropsci1996.0011183X003600010036x

Recovery Resistance To Downy Mildew In Pearl Millet Parental Lines ICMA 1 AND ICMB 1

  1. S. D. Singh  and
  2. B. S. Talukdar
  1. Cereals Program, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, A.P. 502 324, India

Abstract

Abstract

Downy mildew [Sclerospora graminicola (S acc.) Schroet.] has been a major biotic factor affecting grain yield of pearl millet [Pennisetum glaucum (L .) R.Br.] in India for the last 25 yr. Many downy mildew resistant cultivars have been produce and several have been cultivated widely, but the vulnerability of their resistances to the disease has been a major cause of concern. Recovery resistance, in which the pathogen complete its life cycle without affecting the normal development of the plant, has potential for providing durable resistance to the disease. A high level of recovery resistanc(≥95%) was developed in ICM1A (8 1A, a leading male-sterile line in India)and its maintainer line ICM1B ( 81B), through pedigree selection for five generations. The recovery trait in the selected line, designated as RECRES 81A, was stable against the major pathotypes present in India. RECRES 81A is agronomically and phenotypically similar to 81A, produces equally high yielding hybrids, and is being used to produce commercial hybrids.

ICRISAT Journal Article no. 1630

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