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Identification of sources of resistance to powdery and downy mildew diseases in Cucumber [Cucumis sativus (L.)]

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Title Identification of sources of resistance to powdery and downy mildew diseases in Cucumber [Cucumis sativus (L.)]
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Creator M. PITCHAIMUTHU, K. SOURAVI, GIRIJA GANESHAN, G. SONTHOSH KUMAR and R. PUSHPALATHA
 
Subject Cucumber, Downey Mildew, Powdery Mildew, PDI, Screening
 
Description Not Available
The
experimental materials consisted of 42 accessions of
Cucumis spp including the wild type Cucumis hardiwickii,
Cucumis sativus var sativus and SM 12735 (Bitter in
taste).After calculating the PDI, the germplasm in the
population was categorized into four groups namely
resistant (0-25), moderately resistant (26-40), susceptible
(41-60) and highly susceptible(>60).
In open field screening, wild species Cucumis
hardiwickii-14 and 15, Cucumis sativus var sativus and
SM 12735 exhibited a high level of resistance to powdery
and downy mildew diseases with 0-25 % PDI under
natural conditions. Five accessions namely (IIHR-27,
IIHR-35, IIHR-303, IIHR-64 and 82) had < 40 % PDI
exhibited moderately resistance to PM and DM diseases
and rest of the accessions showed > 60 % PDI depicting
highly susceptible to both the diseases. This preliminary
work must be repeated by screening all lines under
artificial conditions in the glasshouse in order to confirm
the results.
Not Available
 
Date 2021-08-06T09:43:09Z
2021-08-06T09:43:09Z
2012
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/53401
 
Language English
 
Relation Not Available;
 
Publisher Not Available