Plantains and bananas are economically important crops in many African countries where they are cultivated in compound gardens by small holders primarily for domestic consumption. These subsistence farmers generally believe that the cultural practice of removing the male buds from bearing banana ...
Okoro, J.
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Vuylsteke, D.R.
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Ortiz, R.
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[Effect of male bud removal on the yield of Musa genotypes in a humid forest zone of West Africa]
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Effect of male bud removal on the yield of Musa genotypes in a humid forest zone of West Africa
The root system development of 11 genotypes from six diverse Musa groups was studied in detail at IITA High Rainfall Station (Onne, southeastern Nigeria). Plantain hybrids (TMPx 548-9, TMPx 1658-4) were compared with their maternal French plantain landrace (Obino l' Ewai) and their paternal diplo...
Ortiz, R.
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[Genetic and phenotypic correlations in plantainbanana euploid hybrids]
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Genetic and phenotypic correlations in plantainbanana euploid hybrids
Traditional approaches to the breeding of Musa crops are highly demanding in terms of both time and space. However, the application of molecular genetic analysis may dramatically improve breeding efficiency. The objectives of the present study were to compare pedigree and DNA marker methods of es...
Tenkouano, A.
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Crouch, J.
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Crouch, H.
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Vuylsteke, D.R.
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Ortiz, R.
,
[Comparison of DNA marker and pedigree-based methods of genetic analysis of plantain and banana (Musa spp.) clones; I: estimation of genetic relationships]
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Comparison of DNA marker and pedigree-based methods of genetic analysis of plantain and banana (Musa spp.) clones; I: estimation of genetic relationships
Pedigree and DNA marker-based methods were used to predict the performance of triploid progeny from tetraploid-diploid crosses, based on parental heterozygosity, genetic relatedness, and expected contribution to their progeny. There was no significant correlation between parental and progeny perf...
Tenkouano, A.
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Crouch, J.
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Crouch, H.
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Vuylsteke, D.R.
,
Ortiz, R.
,
[Comparison of DNA marker and pedigreebased methods of genetic analysis in plantain and banana (Musa spp.) clones; II: predicting hybrid performance]
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Comparison of DNA marker and pedigreebased methods of genetic analysis in plantain and banana (Musa spp.) clones; II: predicting hybrid performance
Vuylsteke, D.R.
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Ortiz, R.
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Ferris, S.
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Swennen, R.
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[PITA9': a blacksigatokaresistant hybrid from the false Horn plantain gene pool]
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PITA9': a blacksigatokaresistant hybrid from the false Horn plantain gene pool
Blomme, Guy
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Swennen, R.
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Tenkouano, A.
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Ortiz, R.
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Vuylsteke, D.R.
,
[Estimation of root development from shoot traits in plantain and banana (Musa spp.)]
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Estimation of root development from shoot traits in plantain and banana (Musa spp.)
Phenotypic diversity for agronomic characteristics was determined in an experiment without fertilizer in 1998 in 41 two-row and 21 six-row winter barley accessions, provided by the Nordic Gene Bank, at Højbakkegård (Denmark). There were significant differences among these 62 accessions for spring...
Ortiz, R.
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Mohamed, S.F.
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Madsen, S.
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Weibull, J.
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Christiansen, J.L.
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[Assessment of phenotypic variation of winter barley in Scandinavia]
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Assessment of phenotypic variation of winter barley in Scandinavia
Progress in the breeding of plantain and banana has been restricted by the complex genetic structure and behaviour of cultivated polyploid Musa. Genetic improvement has been hindered due to the large amount of space required for growth and maintenance of plant populations, in addition to the long...
Crouch, J.H.
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Crouch, H.K.
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Constandt, H.
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Gysel, A. van
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Breyne, P.
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Montagu, M. van
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Jarret, Robert L.
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Ortiz, R.
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[Comparison of PCRbased molecular marker analyses of Musa breeding populations]
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Comparison of PCRbased molecular marker analyses of Musa breeding populations
Potato cybrids result from the fusion between cytoplasm and nuclear gene donors. Such genetic materials are an alternative means to broaden the breeding pool by non-sexual gene transfer. Tetrad pollen sterility provides also another source of male sterility with some potential for true potato see...
Golmirzaie, A.M.
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Tenorio, J.
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Serquén, F.
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Ortiz, R.
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[Cybrids and tetrad sterility for developing true potato seed hybrids]
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Cybrids and tetrad sterility for developing true potato seed hybrids