Inheritance of powdery mildew tolerance in sesame

Powdery mildew is a devastating disease in sesame during rabi season, causing considerable yield loss. Utilisation of host plant resistance mechanism is ideal disease management strategy and knowledge of inheritance of tolerance/resistance to powdery mildew will be quite helpful in formulating breed...

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Bibliographic Details
Published in:Archiv für Phytopathologie und Pflanzenschutz 2012-02, Vol.45 (4), p.404-412
Main Authors: Rao, P. Venkata Ramana, Anuradha, G, Prada, M. Jaya, Shankar, V. Gouri, Reddy, K. Raja, Reddy, N.P. Eswara, Siddiq, E. A
Format: Article
Language:English
Subjects:
breeding
Crop diseases
disease control
Epistasis
Genetics
genotype
Genotypes
Heredity
Host plants
Immune response
Immunological tolerance
inheritance
Plant breeding
Plant protection
Powdery mildew
recessive genes
screening
sesame
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Summary:Powdery mildew is a devastating disease in sesame during rabi season, causing considerable yield loss. Utilisation of host plant resistance mechanism is ideal disease management strategy and knowledge of inheritance of tolerance/resistance to powdery mildew will be quite helpful in formulating breeding program. In the present investigation, 30 genotypes were screened against powdery mildew, of which 18 showed susceptible and 12 tolerant reactions. None of the genotype recorded immune response. Study on inheritance of tolerance to powdery mildew revealed that susceptibility was dominant over tolerance and is controlled by two independent recessive genes with complementary epistasis.
ISSN:1477-2906
0323-5408
1477-2906
DOI:10.1080/03235408.2011.587971