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Identification of groundnut genotypes less susceptible to damage by leafhopper, Empoasca dolichi (Paoli) in Zambia

Published online by Cambridge University Press:  19 September 2011

S. Sithanantham ,
P.H. Sohati ,
B. Syamasonta  and
J. Kannaiyan
S. Sithanantham
Affiliation:
Food Legume Research team, Msekera Regional Research Station, P.O. Box 510089, Chipata, Zambia
P.H. Sohati
Affiliation:
Food Legume Research team, Msekera Regional Research Station, P.O. Box 510089, Chipata, Zambia
B. Syamasonta
Affiliation:
Food Legume Research team, Msekera Regional Research Station, P.O. Box 510089, Chipata, Zambia
J. Kannaiyan
Affiliation:
Food Legume Research team, Msekera Regional Research Station, P.O. Box 510089, Chipata, Zambia
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Abstract

Field experiments at the Msekera Regional Research Station during 1988–1990 and at Masumba (Luangwa Valley) Sub-station during 1989–1990 showed that six groundnut genotypes—ICG.485, ICG.2271, ICG-2306, ICG.5041, ICG.5045 and HyQ (cg) S-10 were distinctly less susceptible to the leafhopper, Empoasca dolichi (Paoli). ICG.2271 also appeared to combine low susceptibility to early leaf spot, Cercospora arachidicola Hori and good yield potential. This genotype as well as ICG.5041 and ICG.5045 also are known to be resistant to thrips and/or termites. The scope for their utilization in exploitation of leafhopper resistance in groundnut improvement programme in Zambia is indicated.

Résumé

Des experimentations conduites sur champ à la Station Régionale de Recherche de Msekera entre 1988–1990 et à la Sous-station de Masumba (Vallée de la Luangwa) entre 1989–1990 ont montré que six génotypes d'arachide, à savoir ICG.485, ICG.2271, ICG.2306, ICG.5041, ICG.5045 et HyQ (cg) S-10 étaient nettement moins susceptibles vis-à-vis de la cicadelle, Empoasca dolichi (Paoli). ICG.2271 semblait aussi allier une faible susceptibilité avec une précoce tache des feuilles (due à Cercospora arachidicola Hori) et un bon potentiel de rendement d'autre part. Ce génotype ainsi que ICG.5041 et ICG.5045 sont aussi connus pour leur résistance aux thrips et/ou aux termites. La portée de leur utilisation pour l'exploitation de la résistance à la cicadelle dans un programme d'amelioration de I'arachide en Zambie est mentionnée.

Keywords

Groundnutgenotypeshost plant resistanceEmpoasca dolichifield screeningArachidegénotypesrésistance à la plante-hôteEmpoasca dolichicriblage au champ
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 15 , Issue 2 , April 1994 , pp. 207 - 209
Copyright
Copyright © ICIPE 1994

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References

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