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Dwivedi, S.L.Britt, A.B.Tripathi, L.Sharma, S.Upadhyaya, Hari D.Ortiz, R.[Haploids: constraints and opportunities in plant breeding]Haploids: constraints and opportunities in plant breeding

Sequencing and analysing of the Arabidopsis thaliana genome, the first plant kingdom genome to be unraveled, will always remain a scientific landmark. International initiatives to sequence rice, the most important cereal in Asia, are underway. However as functional information piles up in Arabido...


Mahalakshmi, V.Ortiz, R.[Plant genomics and agriculture: from model crops to other crops, the role of data mining for gene discovery]Plant genomics and agriculture: from model crops to other crops, the role of data mining for gene discovery

Ortiz, R.Hartmann, P.[Beyond crop technology: the challenge for African rural development]Beyond crop technology: the challenge for African rural development

Bunch weight increase is one of the major objectives of banana improvement programs, but little is known about the loci controlling bunch weight and its component traits. Here we report for the first time some genomic loci associated with bunch weight and its component traits in banana as reveale...


Nyine, M.Uwimana, B.Akech, V.Brown, A.Ortiz, R.Doležel, JaroslavLorenzen, J.Swennen, R.[Association genetics of bunch weight and its component traits in East African highland banana (Musa spp. AAA group).]Association genetics of bunch weight and its component traits in East African highland banana (Musa spp. AAA group).

Thriteen years after the 1st international workshop on Sigatoka diseases of Banana held in San José, Costa Rica, in March 1989, the present proceedings offer an overview of the current situation regarding Mycosphaerella leaf spot diseases at the global level.


Jacome, L.Lepoivre, P.Martin, D.Ortiz, R.Escalant, J-V.[Mycosphaerella leaf spot diseases of bananas: present status and outlook: Proceedings of the 2nd international workshop on Mycosphaerella leaf spot diseases held in San José, Costa Rica, 20-23 may 2002]Mycosphaerella leaf spot diseases of bananas: present status and outlook: Proceedings of the 2nd international workshop on Mycosphaerella leaf spot diseases held in San José, Costa Rica, 20-23 may 2002

Despite considerable efforts of Musa improvement programmes, banana and plantain production still depends upon a limited number of landraces selected by man from the natural germplasm. Inability to replace land-races by cultivars obtained through cross-breeding creates the increased risk of epide...


Ortiz, R.Ferris, R.S.B.Vuylsteke, D.R.[Banana and plantain breeding]Banana and plantain breeding

Secondary triploids were produced by crossing primary tetraploids with selected diploid partners and the parthenocarpic banana (Galeo). Comparisons between secondary tetraploids and secondary triploids showed that the secondary tetraploids generally had lower yields than secondary triploids. The ...


Ortiz, R.Vuylsteke, D.R.[Preliminary evaluation of secondary Musa polyploids at IITA breeding station]Preliminary evaluation of secondary Musa polyploids at IITA breeding station

Leaf age effects on the leaf conductance to water vapour diffusion of the adaxial and abaxial leaf surfaces were measured in the morning and in the afternoon on 17 different plantain and banana (Musa spp.) genotypes. The irradiance levels increased three-fold while leaf to air vapour pressure def...


Ekanayake, I.J.Ortiz, R.Vuylsteke, D.R.[Influence of leaf age, soil moisture, VPD and time of day on leaf conductance of various Musa genotypes in a Humid Forest Moist Savanna transition site]Influence of leaf age, soil moisture, VPD and time of day on leaf conductance of various Musa genotypes in a Humid Forest Moist Savanna transition site
Autor: Ortiz, R.

The triploid nature of plantain and its pattern of inheritance should have represented a challenge and an incentive for geneticists. However, few genetic and cytological investigations have been done in Musa spp. Both banana and plantain have been ignored and neglected as material for basic genet...


Ortiz, R.[Musa genetics]Musa genetics

Diploid cultivated species, haploids derived from tetraploid cultivars, and their wildSolanum relatives were used to generate various diploid potato genetic stocks. These stocks have significant value in potato breeding because: 1) genetic diversity in the potato population can be kept variable w...


Watanabe, K.Orillo, M.Iwanaga, MasaruOrtiz, R.Freyre, R.Perez, S.[Diploid potato germplasm derived from wild and landrace genetic resources]Diploid potato germplasm derived from wild and landrace genetic resources

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