Publication Type

Journal Article

Journal Name

Insect Science and its Application

Publication Date

1-1-1997

Abstract

Combining ability of resistance to the sorghum shootfly, Atherigona soccata and spotted stemborer, Chilo partellus in grain sorghum was analysed on a seven-parents diallel in a field trial at the ICIPE Mbita Point Field Station, western Kenya during the 1990 long rainy season. Lines with best performance for each of the four measured resistance parameters were also found to be the best general combiners. Resistance to leaf damage and number of holes/metre were controlled by additive gene effects whereas resistance to deadheart and stem tunnelling were controlled by additive and non-additive gene effects. Parents IS-1044, IS-12308 and IS-2269 with their good level of resistance, and desirable general combining ability (GCA) effects are proposed for utilisation as resistant combiners in breeding programmes for shootfly and stemborer resistance in grain sorghum. © 1997 ICIPE.

Keywords

Atherigona soccata, Chilopartellus, Combining resistance, Diallel, Gene effect, Sorghum, Sorghum bicolor, Sorghum shootfly, Stemborer

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