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Journal Article 2002

Morphological and isozymic diversity of the cultivated yams (Dioscorea cayenensis/Dioscorea rotundata complex) of Cameroon

Autor: Mignouna, H.D. Dansi, A. Zok, S.

Using IPGRI's descriptors, 45 accessions of Guinea yams (Dioscorea cayenensis Lam./ Dioscorea rotundata Poir. complex) collected in Cameroon were classified into six cultivar groups based on their morphological similarities. An identification key is proposed for the cultivar groups. Six enzymatic...

Enlace original: https://cgspace.cgiar.org/handle/10568/99944

Investigación en Agricultura

CULTIVARS

DIOSCOREA CAYENENSIS

DIOSCOREA ROTUNDATA

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Mignouna, H.D. , Dansi, A. , Zok, S. , [Morphological and isozymic diversity of the cultivated yams (Dioscorea cayenensis/Dioscorea rotundata complex) of Cameroon] , Morphological and isozymic diversity of the cultivated yams (Dioscorea cayenensis/Dioscorea rotundata complex) of Cameroon

Journal Article 1983

Source of inoculum and development of bean web blight in Costa Rica

Autor: Galindo, J.J. Abawi, G.S. Thurston, HD Galvez, G

Epidemiology of bean (Phaseolus vulgaris) web blight (BWB) caused by Thanatephorus cucumeris (teleomorph of Rhizoctonia solani) was studied in a field with a history of severe incidence of the disease. Sclerotia and mycelium of T. cucumeris, either free in soil or in the form of colonized debris,...

Enlace original: https://cgspace.cgiar.org/handle/10568/44116

Investigación en Agricultura

PHASEOLUS VULGARIS

RHIZOCTONIA SOLANI

DISEASES AND PATHOGENS

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Galindo, J.J. , Abawi, G.S. , Thurston, HD , Galvez, G , [Source of inoculum and development of bean web blight in Costa Rica] , Source of inoculum and development of bean web blight in Costa Rica

Journal Article 1991

Sources and inheritance of earliness in tropically adapted indeterminate common beans

Autor: White, Jeffrey W. Singh, Shree P.

Nineteen early maturing, indeterminate common bean parents were crossed with a tester line of normal maturity. All parents, F1 hybrids, F2's, and backcross generations were evaluated at CIAT-Palmira, Colombia. All 19F1 populations flowered and matured almost as early as the respective early paren...

Enlace original: https://cgspace.cgiar.org/handle/10568/44117

Investigación en Agricultura

PHASEOLUS VULGARIS

CULTIVARS

INDETERMINATE CULTIVARS

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White, Jeffrey W. , Singh, Shree P. , [Sources and inheritance of earliness in tropically adapted indeterminate common beans] , Sources and inheritance of earliness in tropically adapted indeterminate common beans

Journal Article 1983

Potentials and limitations of mycorrhizal inoculation illustrated by experiments with field-grown cassava

Autor: Howeler, Reinhardt H. Sieverding, E

Field inoculation trials with cassava (Manihot esculenta Crantz) were conducted in Quilichao (typic Dystropept soil) and Carimagua (Haplustox soil). In Quilichao, with a large and effective native VA-mycorrhizal (VAM) population, inoculation withGlomus manihotis did not increase cassava yields si...

Enlace original: https://cgspace.cgiar.org/handle/10568/43969

Investigación en Agricultura

MANIHOT ESCULENTA

MYCORRHIZAE

INOCULATION

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Howeler, Reinhardt H. , Sieverding, E , [Potentials and limitations of mycorrhizal inoculation illustrated by experiments with field-grown cassava] , Potentials and limitations of mycorrhizal inoculation illustrated by experiments with field-grown cassava

Journal Article 1988

Reactions of selected bean accessions to infection by Macrophomina phaseolina

Autor: Pastor Corrales, Marcial A. Abawi, G.S.

Fifty-three bean (Phaseolus vulgaris) accessions were evaluated for their reactions to infection by Macrophomina phaseolina under field and greenhouse conditions. A field nursery was established on an experimental farm near Santander de Quilichao, Colombia. All accessions were evaluated in paired...

Enlace original: https://cgspace.cgiar.org/handle/10568/44008

Investigación en Agricultura

PHASEOLUS VULGARIS

CULTIVARS

RESISTANCE

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Pastor Corrales, Marcial A. , Abawi, G.S. , [Reactions of selected bean accessions to infection by Macrophomina phaseolina] , Reactions of selected bean accessions to infection by Macrophomina phaseolina

Journal Article 1987

Reactions of selected bean germ plasm to infection by Fusarium oxysporum f. sp. phaseoli

Autor: Pastor Corrales, Marcial A. Abawi, G.S.

A Brazilian isolate of Fusarium oxysporum f. sp. phaseoli (F. o. f. sp. phaseoli) was used to determine the reactions of 66 lines of beans to the Fusarium yellows pathogen in greenhouse tests. The distal 1 cm of root tips of 1-wk-old seedlings grown in sterilized sand were removed, roots were dip...

Enlace original: https://cgspace.cgiar.org/handle/10568/44009

Investigación en Agricultura

PHASEOLUS VULGARIS

GERMPLASM

RESISTANCE

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Pastor Corrales, Marcial A. , Abawi, G.S. , [Reactions of selected bean germ plasm to infection by Fusarium oxysporum f. sp. phaseoli] , Reactions of selected bean germ plasm to infection by Fusarium oxysporum f. sp. phaseoli

Journal Article 1991

Reactions of selected bean pure lines and accessions to Meloidogyne species

Autor: Mullin, BA Abawi, G.S. Pastor Corrales, Marcial A. Kornegay, Julia L.

Over 150 bean (Phaseolus vulgaris) pure lines and accessions were evaluated in growth chamber and greenhouse trials for reactions to one or more populations of root-knot nematodes (Meloidogyne spp.) collected from Colombia or the United States. Bean pure lines and accessions were evaluated for ro...

Enlace original: https://cgspace.cgiar.org/handle/10568/44010

Investigación en Agricultura

PHASEOLUS VULGARIS

MELOIDOGYNE INCOGNITA

MELOIDOGYNE JAVANICA

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Mullin, BA , Abawi, G.S. , Pastor Corrales, Marcial A. , Kornegay, Julia L. , [Reactions of selected bean pure lines and accessions to Meloidogyne species] , Reactions of selected bean pure lines and accessions to Meloidogyne species

Journal Article 1992

Restriction of nodulation by the broad host range Rhizobium tropici strain CIAT899 in wild accessions of Phaseolus vulgaris L.

Autor: Kipe-Nolt, Judith A. Montealegre, CM Tohme, Joseph M.

Common bean (Phaseolus vulgaris L.) is nodulated by a heterogeneous group of Rhizobium strains. In a search for host plant restriction of nodulation by some of these strains, 50 wild and cultivated bean accessions were evaluated for the length of time taken to form effective nodules with three di...

Enlace original: https://cgspace.cgiar.org/handle/10568/44053

Investigación en Agricultura

PHASEOLUS VULGARIS

CULTIVARS

RHIZOBIUM PHASEOLI

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Kipe-Nolt, Judith A. , Montealegre, CM , Tohme, Joseph M. , [Restriction of nodulation by the broad host range Rhizobium tropici strain CIAT899 in wild accessions of Phaseolus vulgaris L.] , Restriction of nodulation by the broad host range Rhizobium tropici strain CIAT899 in wild accessions of Phaseolus vulgaris L.

Journal Article 1987

Response of cassava to water stress

Autor: El-Sharkawy, Mabrouk A. Cock, James H.

Cassava (Manihot esculenta Crantz) is a staple food for a large sector of human population in the tropics. It is widely produced for its starchy roots by small farmers over a range of environments on poor infertile soils with virtually no inputs. It is highly productive under favorable conditions...

Enlace original: https://cgspace.cgiar.org/handle/10568/44051

Investigación en Agricultura

MANIHOT ESCULENTA

CULTIVARS

WATER STRESS

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El-Sharkawy, Mabrouk A. , Cock, James H. , [Response of cassava to water stress] , Response of cassava to water stress

Journal Article 1991

Root-knot nematodes associated with beans in Colombia and Peru and related yield loss

Autor: Mullin, BA Abawi, G.S. Pastor Corrales, Marcial A. Kornegay, Julia L.

A survey of root-knot nematodes associated with bean (Phaseolus vulgaris) roots and soils in the major bean production regions of Colombia and Peru was conducted during 1988 1989. Over 150 samples were processed for these parasites, and specimens from more than 100 of the collections were identif...

Enlace original: https://cgspace.cgiar.org/handle/10568/44064

Investigación en Agricultura

PHASEOLUS VULGARIS

CULTIVARS

MELOIDOGYNE INCOGNITA

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Mullin, BA , Abawi, G.S. , Pastor Corrales, Marcial A. , Kornegay, Julia L. , [Root-knot nematodes associated with beans in Colombia and Peru and related yield loss] , Root-knot nematodes associated with beans in Colombia and Peru and related yield loss

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