Evaluation of a cassava germplasm collection for reaction to three major diseases and the effect on yield

Evaluation of a cassava germplasm collection for reaction to three major diseases and the effect on yield

Thirty-five cassava (Manihot esculenta Crantz) genotypes from the International Institute of Tropical Agriculture (IITA), germplasm collection were planted in May 1992 under natural disease infection conditions, at the IITA field plots at Ibadan, Nigeria. The genotypes were evaluated at monthly inte...

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Veröffentlicht in:Genetic resources and crop evolution 2000-02, Vol.47 (1), p.63-71
Hauptverfasser: Fokunang, C N, Akem, C N, Dixon, AGO, Ikotun, T
Format: Artikel
Sprache:eng
Schlagworte:
Anthracnose
Blight
Cassava
Collection
Correlation
Disease
Dry matter
Genotypes
Germplasm
Incidence
Manihot esculenta
Plant virus diseases
Planting
Root rot
Viruses
Weight
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Zusammenfassung:Thirty-five cassava (Manihot esculenta Crantz) genotypes from the International Institute of Tropical Agriculture (IITA), germplasm collection were planted in May 1992 under natural disease infection conditions, at the IITA field plots at Ibadan, Nigeria. The genotypes were evaluated at monthly intervals for six months, for incidence and severity of cassava anthracnose disease (CAD), cassava bacterial blight (CBB) and African cassava mosaic virus (ACMV). The effect of the pathogens on yield was also evaluated twelve months after planting (MAP). CAD, CBB and ACMV incidence and severity were significantly different (P
ISSN:0925-9864
1573-5109
DOI:10.1023/A:1008797225343