Resistance breeding in root and tuber crops at the International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria

Hahn, S. K.; Isoba, John C. G.; Ikotun, T.

doi:10.1016/0261-2194(89)90022-7

Cited by 92 publications

(68 citation statements)

References 21 publications

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“…The increase in severity and incidence of CBB with time (the beginning and peak of rainy season) observed for the varieties suggest that high rainfall favours the spread of the disease. This is in agreement with the findings of Hahn et al (1989) and IITA (1990) who reported an increase in incidence and severity of CBB over a period of six months on both resistant and susceptible genotypes under similar environmental conditions. Results from this study show that incidence and severity of the disease decline at the end of the rains.…”

Section: Map Months After Plantingsupporting

confidence: 93%

Evaluation of Some Improved Varieties of Cassava (Manihot esculenta) (Crantz) for Resistance to cassava Bacterial Blight (CBB) in a Humid Forest Zone of Nigeria

Emiri¹

2016

IOSR

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Section: Map Months After Plantingsupporting

confidence: 93%

Evaluation of Some Improved Varieties of Cassava (Manihot esculenta) (Crantz) for Resistance to cassava Bacterial Blight (CBB) in a Humid Forest Zone of Nigeria

Emiri¹

2016

IOSR

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“…It has been reported that CBB resistance was highly dependent of the interaction between cassava cultivars and Xam isolates (Restrepo et al, 2000), and MEPX1 could be useful as a marker for specific cultivar x isolate interaction. It would also be interesting to check this clone as a marker for resistance to cassava mosaic virus (ACMV), another important disease in cassava, since there are indications that the genes for resistance to both diseases are linked (Hahn et al, 1989).…”

Section: Resultsmentioning

confidence: 99%

Cloning of a peroxidase gene from cassava with potential as a molecular marker for resistance to bacterial blight

Pereira

Erickson

2003

Braz. arch. biol. technol.

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“…Of all the diseases found on cassava, Cassava Anthracnose Disease (CAD) caused by Colletotrichum gloeosporioides Penz f sp. manihotis Chev is the most important fungal disease of cassava in the field [3] . The most outstanding effect of the disease is its ability to cause severe stem damage causing canker on stem, wilting of leaves and diebacks.…”

Section: Introductionmentioning

confidence: 99%

A Combining Ability Analysis of Cassava Manihot esculenta Crantz Genotypes to Anthracnose Disease

Owolade¹,

Dixon²,

Akande³

et al. 2009

American J. of Applied Sciences

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Cassava Anthracnose Disease (CAD) caused by Colletotrichum gloeosporioides f sp. manihotis has been recognized as one of the major economic disease of cassava in all the cassava growing regions of Africa. Little information is available on the resistance of cassava to C. gloeosporioides f sp. manihotis. This study was conducted to determine the relative importance of general (GCA) and specific (SCA) combining ability, maternal and non-maternal reciprocal effects on resistance to C. gloeosporioides f sp. manihotis in selected cassava genotypes. A complete diallel mating scheme including reciprocals of nine resistant and susceptible genotypes of cassava were evaluated in the field over a period of two planting seasons. The combining ability analysis revealed that both the additive and nonadditive gene effects were present. Crosses between the resistant lines and susceptible genotypes showed intermediate disease reaction to CAD suggesting a polygenic system of resistance to the disease. The significant maternal and specific reciprocal differences among the parents and crosses indicated that maternal and/or cytoplasmic inheritance is involved in the reaction of cassava genotypes to Colletotrichum gloeosporioides f sp manihotis. The significant genotype X environment interaction suggested lack of stability in the development of lesions/cankers on cassava stems. Therefore, recurrent selection would be appropriate for accumulating genes for resistance to CAD in cassava and progeny performance may not be based on their parents performance sec −1 .

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Resistance breeding in root and tuber crops at the International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria

Cited by 92 publications

References 21 publications

Evaluation of Some Improved Varieties of Cassava (Manihot esculenta) (Crantz) for Resistance to cassava Bacterial Blight (CBB) in a Humid Forest Zone of Nigeria

Evaluation of Some Improved Varieties of Cassava (Manihot esculenta) (Crantz) for Resistance to cassava Bacterial Blight (CBB) in a Humid Forest Zone of Nigeria

Cloning of a peroxidase gene from cassava with potential as a molecular marker for resistance to bacterial blight

A Combining Ability Analysis of Cassava Manihot esculenta Crantz Genotypes to Anthracnose Disease

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