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Multiple Resistance in Forage Sorghum Hybrids to the Sorghum shootfly, Atherigona soccata (Rondani) and the Spotted Stemborer, Chilo partellus (Swinhoe)

Published online by Cambridge University Press:  19 September 2011

Tarun Verma  and
S. P. Singh
Tarun Verma
Affiliation:
Department of Entomology, CCS Haryana Agricultural University, Hisar-125 004, India
S. P. Singh
Affiliation:
Department of Entomology, CCS Haryana Agricultural University, Hisar-125 004, India
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Abstract

Forty forage sorghum genotypes, including 30 hybrids, 5 inbred forage varieties and 3 resistant and 2 susceptible checks were screened for resistance to the sorghum shootfly, Atherigona soccata (Rondani) (Diptera: Muscidae) and the spotted stemborer, Chilo partellus (Swinhoe) (Lepidoptera: Pyralidae) under natural infestation in July-September 1996 and 1997. Six sorghum genotypes including two forage sorghum hybrids, HH 1 and NFSH 10659, three resistant check entries, IS 2205, IS 5469 and IS 18551 and inbred forage variety HC 171 showed multiple resistance to both the shootfly and the stemborer. The forage sorghum hybrid HH 1 also gave the highest green fodder yield. It is therefore suggested that this cultivar may be used in breeding programmes as a donor parent for developing sorghum cultivars resistant to A. soccata and C. partellus, or used directly for general cultivation.

Résumé

Quarante génotypes de sorgho fourrager dont 30 hybrides, 5 variétés fourragères de lignée pure, 3 variétés résistantes et 2 variétés sensibles en observation ont été cliblés pour la résistance contre la mouche du bourgeon terminal de sorgho, Atherigona soccata (Rondani) (Diptera: Muscidae), et le foreur tachété des tiges, Chilo partellus (Swinhoe) (Lepidoptera: Pyralidae). L'expérience a été conduite sous infestation naturelle en juillet-septembre 1996 et 1997. Six génotypes de sorgho dont deux hybrides fourragers, HH 1 et NFSN 10659, trois entrées résistantes en observation, IS 2205, IS 5469 et IS 18551 et une variété fourragère de lignée pure, HC 171 ont montré des résistances multiples vis-à-vis des deux insectes. L'hybride de sorgho fourrager, HH 1 a aussi donné le plus haut rendement en fourrage vert. Partant de ceci, on recommande que ce cultivar soit utilisé dans les programmes de sélection comme parent donnateur pour la mise au point des variétés résistantes à A. soccata et C. partellus, ou simplement l'employer comme matériel de plantation.

Keywords

sorghumshootflyAtherigona soccatastemborerChilo partellusmultiple resistancesorghomouche de bourgeon terminalAtherigona soccataChilo partellusrésistance multiple
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 20 , Issue 3 , September 2000 , pp. 203 - 206
Copyright
Copyright © ICIPE 2000

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References

REFERENCES

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