Results 21 to 30 of about 685 (163)
Postharvest application of growth regulators on Dioscorea alata (L.) and Dioscorea rotundata (Poir.)
Revista Colombiana de Ciencias Hortícolas, 2021 Yam is a tuber that sees high demand and consumption in Colombia, whose post-harvest quality losses during storage have been a challenge for farmers. At the Universidad de Cordoba-Colombia, Agronomy Engineering program, between March and August of 2019, a trial was established to estimate the effect of two growth regulators on the variables: tuber ...
Carlos Enrique Cardona-Ayala +2 more
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Somatic polyploidization and characterization of induced polyploids of Dioscorea rotundata and Dioscorea cayenensis [PDF]
African Journal of Biotechnology, 2016 Genetic improvement of major food yams is constrained by a number of factors, such as the scarcity of flowers and lack of synchronization between male and female flowering. Consequently, somaclonal variation including somatic polyploidization has been considered as a useful tool in yam breeding.
Babil, Pachakkil +6 more
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Agronomía Costarricense, 2018 El objetivo de esta investigación fue aislar y caracterizar rizobacterias promotoras de crecimiento vegetal (PGPRs, por sus siglas en inglés) nativas de la rizosfera en cultivos de Dioscorea rotundata de zonas productoras representativas del Caribe ...
Diana Beatriz Sánchez López +1 more
doaj +1 more source
MODELADO DE LAS ISOTERMAS DE DESORCIÓN DEL ÑAME (Dioscorea rotundata)
Dyna, 2009 Se determinaron experimentalmente los valores de contenido de humedad de equilibrio para ñame (Dioscorea rotundata variedades 9811-089 y 9811-091) a las temperaturas de 45, 55 y 70 °C y humedades relativas entre 10 y 67%. Las muestras se adecuaron en rodajas de 6.38 cm de diámetro y 0.5 cm de espesor.
MONTES, EVERALDO +5 more
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Temas Agrarios, 2014 In Colombia, yams (Dioscorea spp.) are grown in the Caribbean region, with Dioscorea alata L. and Dioscorea rotundata Poir. most cultivated species. One of the limiting factors in these crops are diseases caused by viruses, especially by Potyvirus that ...
Iris R. Payares +2 more
doaj +1 more source
Ploidy level studies on the Dioscorea cayenensis/Dioscorea rotundata complex core set
Euphytica, 2009 The Guinea yams, Dioscorea cayenensis Lam. and D. rotundata Poir. (D. cayenensis–D. rotundata complex), represent a highly important crop, widely distributed in the humid and semi-humid tropics. The ploidy levels of 170 accessions of the core set of Guinea yams from West African countries was determined using flow cytometry with
Obidiegwu, J.E. +7 more
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Stomatal complex types, stomatal density, and the stomatal index in some species of dioscorea [PDF]
Archives of Biological Sciences, 2009 Dioscorea alata L. has three stomatal complex types, namely, paracytic, anisocytic, and tetracytic stomata, with percentage frequency values of 50, 18, and 32, respectively.
Abdulrahaman A.A. +2 more
doaj +1 more source
Plant Sex Prediction Using Genetic Markers in Cultivated Yams (Dioscorea rotundata Poir.) in Benin
Agronomy, 2020 Dioscorea rotundata Poir. is mainly dioecious but it also produces monoecious individuals. Recently two genetic markers were proposed to determine the sex in this species.
Narcisse Denadi +4 more
doaj +1 more source
Origine et diversité des ignames Dioscorea rotundata Poir
Cahiers Agricultures, 2010 La production mondiale des ignames est tres majoritairement basee sur l'espece Dioscorea rotundata, dont l'Afrique de l'Ouest est l'aire de culture principale. Cette espece se diviseen trois ensembles agronomiques et genetiques, chacun d'eux compose de nombreux cultivars polyclonaux. Les D.
Roland Dumont +2 more
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The effects of calcium fertilizer on anthracnose and Rhizopus tuber rot of yam
Annals of Tropical Research, 2021 Yam (Dioscorea spp) production is beset in the field and in storage by major fungal pathogens, namely Colletotrichum gloeosporioides that causes anthracnose in the field, and Rhizopus stolonifer that causes tuber rot in storage.
Osijo Adedeji Taiwo +3 more
doaj +1 more source