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DNA was extracted from the mycelia of Colletotrichum gloeosporioides[Glomerella cingulata] isolates from yam, and amplification reactions using 11 random primers generated 116 DNA bands, 70 of them being informative. The electrophoretic patterns revealed by these primers allowed the identificatio...


Thottappilly, G.Mignouna, H.D.Onasanya, A.Abang, Mathew M.Oyelakin, O.Singh, N.K.[Identification and differentiation of isolates of Colletotrichum gloeosporioides from yam by random amplified polymorphic DNA markers]Identification and differentiation of isolates of Colletotrichum gloeosporioides from yam by random amplified polymorphic DNA markers

Anthracnose, caused by Colletotrichum gloeosporioides, is the most severe foliar disease of water yam (Dioscorea alata) worldwide. The tetraploid breeding line, TDa 95/00328, is a source of dominant genetic resistance to the moderately virulent fast growing salmon (FGS) strain of C. gloeosporioid...


Mignouna, H.D.Abang, Mathew M.Onasanya, A.Agindotan, A.Asiedu, Robert[Identification and potential application of RAPD markers for anthracnose resistance in water yam (Dioscorea alata)]Identification and potential application of RAPD markers for anthracnose resistance in water yam (Dioscorea alata)

Resistance to Yam mosaic virus (YMV) in tetraploid white yam (Dioscorea rotundata) is inherited differentially as a dominant and recessive character. Elite D. rotundata breeding lines with durable resistance to YMV can be developed by pyramiding major dominant and recessive genes using marker ass...


Mignouna, H.D.Abang, Mathew M.Onasanya, A.Agindotan, B.Asiedu, Robert[Identification and potential use of RAPD markers linked to yam mosaic virus resistance in white yam (Dioscorea rotundata)]Identification and potential use of RAPD markers linked to yam mosaic virus resistance in white yam (Dioscorea rotundata)

A morphological diversity study was conducted on African rice gall midge Orseolia oryzivora Harris & Gagné and two other African species, Orseolia bonzii Harris and Orseolia nwanzei Harris & Nwilene, sp. n. Morphological differences between adult and immature stages of the three species are sligh...

Une etude de la djversite morphologique a ete reaHsee sur la cecidomyie de la galle du riz africain, Orseolia oryzivora Harris & Gagne et sur deux autres especes africaines, O. bonzii Harris et O. nwallzei Harris & Nwilene, sp. n. Les difference morphologiques entre les stades adultes et immature...


Nwilene, F.E.Harris, K.M.Okhidievbie, O.Onasanya, A.Sere, Y.Ingelbrecht, I.L.[Morphological diversity and genomic DNA fingerprinting of the African rice gall midge Orseolia oryzivora (Diptera: Cecidomyiidae) and of two other species of African Orseolia]Morphological diversity and genomic DNA fingerprinting of the African rice gall midge Orseolia oryzivora (Diptera: Cecidomyiidae) and of two other species of African Orseolia

Upland rice is mostly at risk from soil insect pests, including termites which cause significant yield losses. Studies were conducted at Kasua-Mangani, Kaduna State, Northcentral Nigeria, to evaluate the resistance status of 18 upland NERICA rice varieties to termite attack. The percent plant att...


Agunbiade, T.A.Nwilene, F.E.Onasanya, A.Semon, M.Togola, A.Tamo, M.Falola, O.O.[Resistance status of upland NERICA rice varieties to termite damage in northcentral Nigeria]Resistance status of upland NERICA rice varieties to termite damage in northcentral Nigeria

Rice and maize intercrop is a common feature of traditional upland rice cultivation in Nigeria. Stemborer larvae cause significant yield loss in rice. The study aimed at identifying stemborer resistant status of upland NERICA rice varieties and evaluating the effectiveness of maize as a trap crop...


Nwilene, F.E.Onasanya, A.Togola, A.Oyetunji, O.Semon, M.Tamo, M.Bright, E.O.Ofodile, S.[Effect of intercropping maize and cassava with upland NERICA rice varieties on stemborer attack in southwest Nigeria]Effect of intercropping maize and cassava with upland NERICA rice varieties on stemborer attack in southwest Nigeria

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