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        <dc:title>Sources and Mechanisms of Resistance to Sorghum Head Bug, Eurystylus-Immaculatus Odh in West-Africa</dc:title>
        <dc:creator>Sharma, H C</dc:creator>
        <dc:creator>Doumbia, Y O</dc:creator>
        <dc:creator>Haidara, M</dc:creator>
        <dc:creator>Scheuring, J F</dc:creator>
        <dc:creator>Ramaiah, K V</dc:creator>
        <dc:creator>Benenati, N F</dc:creator>
        <dc:subject>Sorghum</dc:subject>
        <dc:description>Sorghum is one of the most important cereal crops in West Africa, and the head bug, Eurystylus immaculatus Odh. (Hemiptera: Miridae) is the key pest of grain sorghum in this region. A range of sorghum genotypes were evaluated for resistance to sorghum head bug at Sotuba (Mali) and Kamboinse (Burkina Faso). Genotypes CSM 388, IS 14332, Malisor 84-7, Sakoika. S 29 and Kamboinse local were resistant to head bugs. both under natural and headcage screening. Head bug resistant genotypes had a lower percentage of head bug damaged grain. The food quality of head bug damaged grain was very poor and unacceptable. Cultivar non-preference was identified as a component of resistance to head bugs. and CSM 388 was nonpreferred compared to E 35-1. Panicle compactness was positively associated with head bug numbers and grain damage. However, genotypes with loose panicles were also susceptible to bugs. Long glumes (&gt;5 mm), days to glume opening (&gt;20 days after anthesis), &gt;50% covering of the grain by the glumes, and grain hardness contribute towards resistance to Eurystylus immaculatus. This information will be useful for developing a programme to breed for resistance to this insect in West Africa.</dc:description>
        <dc:publisher>International Centre of Insect Physiology and Ecology, Nairobi, Kenya</dc:publisher>
        <dc:date>1994</dc:date>
        <dc:type>Article</dc:type>
        <dc:type>PeerReviewed</dc:type>
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        <dc:language>en</dc:language>
        <dc:identifier>http://oar.icrisat.org/2813/1/JA_1073.pdf</dc:identifier>
        <dc:identifier>  Sharma, H C and Doumbia, Y O and Haidara, M and Scheuring, J F and Ramaiah, K V and Benenati, N F  (1994) Sources and Mechanisms of Resistance to Sorghum Head Bug, Eurystylus-Immaculatus Odh in West-Africa.  Insect Science and its Application, 15 (1).  pp. 39-48.  ISSN 0191-9040     </dc:identifier></oai_dc:dc>
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