eprintid: 2081
rev_number: 7
eprint_status: archive
userid: 30
dir: disk0/00/00/20/81
datestamp: 2011-10-08 07:13:13
lastmod: 2011-10-08 07:13:13
status_changed: 2011-10-08 07:13:13
type: article
metadata_visibility: show
contact_email: Library-ICRISAT@CGIAR.ORG
item_issues_count: 0
creators_name: Sharma, H C
icrisatcreators_name: Sharma, H C
affiliation: ICRISAT(Patancheru)
country: India
title: Cytoplasmic male-sterility and source of pollen influence the expression of resistance to sorghum midge,Stenodiplosis sorghicola

ispublished: pub
subjects: s1.4
full_text_status: restricted
keywords: plant resistance, pollen effects, resistance mechanisms, Sorghum bicolor, Stenodiplosis sorghicola,sorghum midge 
note:                                                     
I thank Dr Rodomiro Ortiz for his constructive comments, and Mr D. Krishna and Mr V.V. Rao for their help in carrying out these experiments.                
                                                    
abstract: Sorghum midge, Stenodiplosis (Contarinia) sorghicola (Coquillett), is an important pest of grain sorghum, and host plant resistance is an important aspect of control of this pest. This research investigated how cytoplasmic male-sterility and source of pollen influence the expression of resistance to sorghum midge. Sorghum midge emergence was significantly lower in panicles of midge-resistant and midge-susceptible cytoplasmic male-sterile lines when pollinated with AF 28 - a midge-resistant restorer line, than those pollinated with Swarna - a midge susceptible restorer line, indicating the presence of xenia effects. Maintainer lines (B-lines) of midge-resistant parents had significantly lower numbers of eggs and larvae than the B-lines of midge-susceptible parents. Male-sterile lines of the both midge-resistant and midge-susceptible lines were equally susceptible, indicating that resistance to sorghum midge is influenced by factors in the cytoplasm of the B-line. These findings will have an important bearing on the production of hybrids with resistance to insects.
date: 2001
date_type: published
publication: Euphytica
volume: 122
number: 2
publisher: Springer
pagerange: 391-395
refereed: TRUE
issn: 0014-2336
official_url: http://dx.doi.org/10.1023/A:1012995409298
related_url_url: http://scholar.google.co.in/scholar?hl=en&q=allintitle%3A+%22Cytoplasmic+male-sterility+and+source+of+pollen+influence+the+expression+of+resistance+to+sorghum+midge%2C+Stenodiplosis+sorghicola.%22&btnG=Search&as_sdt=0%2C5&as_ylo=&as_vis=0
related_url_type: author
citation:   Sharma, H C  (2001) Cytoplasmic male-sterility and source of pollen influence the expression of resistance to sorghum midge,Stenodiplosis sorghicola.  Euphytica, 122 (2).  pp. 391-395.  ISSN 0014-2336     
document_url: http://oar.icrisat.org/2081/1/Cytoplasmic_male-sterility_and_source_of_pollen_influence_the_expression_of_resistance_to_sorghum_midge%2C_Stenodiplosis_sorghicola.pdf