eprintid: 54
rev_number: 12
eprint_status: archive
userid: 1
dir: disk0/00/00/00/54
datestamp: 2011-05-31 04:39:31
lastmod: 2011-06-10 09:13:21
status_changed: 2011-05-31 04:39:31
type: article
metadata_visibility: show
contact_email: Library-ICRISAT@cgiar.org
item_issues_count: 0
creators_name: Sharma, R
creators_name: Rao, V P
creators_name: Senthilvel, S
creators_name: Rajput, S C
creators_name: Thakur, R P
icrisatcreators_name: Sharma, R
icrisatcreators_name: Rao, V P
icrisatcreators_name: Senthilvel, S
icrisatcreators_name: Thakur, R P
affiliation: ICRISAT(Patancheru)
affiliation: Chandra Shekhar Azad University of Agriculture and Technology(Aligarh)
country: India
title: Virulence Diversity in North Indian Isolates
of Sclerospora Graminicola, the pearl millet
Downy Mildew Pathogen

ispublished: pub
subjects: S1.5
full_text_status: restricted
agrotags: <b>Agrotags</b>     - isolation | pathogens | millets | pearl millet (plant) | hybrids | fungal diseases | downy mildews | planting | fungi | surveys <br><b>Fishtags</b>    - pearls <br><b>Geopoliticaltags</b> - uttar pradesh | india | delhi | haryana
note: The authors like to thank Dr I.S. Khairwal, Project
Coordinator, All India Coordinated Pearl Millet Improvement
Project, for approving and Dr R.S. Mahala,
Pioneer Overseas Corporation, Hyderabad, for facilitating
the on-farm survey
abstract: On-farm surveys were conducted in the Uttar Pradesh
(India) during the two rainy seasons 2007 and 2008 to
monitor pearl millet (Pennisetum glaucum) downy mildew
incidence. Twenty-one isolates of Sclerospora graminicola,
the pearl millet downy mildew pathogen, were collected
from different hybrid cultivars. These isolates were established
on seedlings of the highly susceptible line 7042S
grown in the greenhouse and were characterized for their
virulence diversity using a set of seven host differential
lines. Quantitative differences in virulence among
pathogen isolates were determined by calculating virulence
index (percent disease incidence × latent period-1).
Results were submitted to cluster analysis using the Average
Linkage method to determine similarity among
pathogen isolates. The two highly virulent isolates, Sg 492
from Aligarh and Sg 510 from Badaun, representing geographically
diverse locations were selected for use in
greenhouse screening of pearl millet breeding lines.
date: 2011
date_type: published
publication: Journal of Plant Pathology
volume: 93
number: 1
pagerange: 71-78
refereed: TRUE
related_url_url: http://scholar.google.co.in/scholar?as_q=%22VIRULENCE+DIVERSITY+IN+NORTH+INDIAN+ISOLATES+OF+SCLEROSPORA+GRAMINICOLA%2C+THE+PEARL+MILLET+DOWNY+MILDEW+PATHOGEN%22&num=10&btnG=Search+Scholar&as_epq=&as_oq=&as_eq=&as_occt=title&as_sauthors=&as_publication=&as
related_url_type: author
citation:   Sharma, R and Rao, V P and Senthilvel, S and Rajput, S C and Thakur, R P  (2011) Virulence Diversity in North Indian Isolates of Sclerospora Graminicola, the pearl millet Downy Mildew Pathogen.  Journal of Plant Pathology, 93 (1).  pp. 71-78.      
document_url: http://oar.icrisat.org/54/1/008_JPP322%28Sharma%29_71.pdf