Buscar

Mostrando ítems 1-10 de 41

Performance and grain yield stability of maize populations developed using marker-assisted recurrent selection and pedigree selection procedures

Beyene, Y.; Gakunga, J.; Sehabiague, P.; Meisel, B.; Oikeh, S.O.; Crossa, J.; Mugo, S.N.; Fentaye Kassa Semagn; Amsal Tesfaye Tarekegne; Prasanna, B.M.; Olsen, M. (Springer, 2016)

A marker-assisted recurrent selection (MARS) program was undertaken in sub-Saharan Africa to improve grain yield under drought-stress in 10 biparental tropical maize populations. The objectives of the present study were ...

Correction to : genotype by environment interactions and agronomic performance of doubled haploids testcross maize (Zea mays L.) hybrids

Julius Pyton Sserumaga; Oikeh, S.O.; Mugo, S.N.; Asea, G.; Otim, M.; Beyene, Y.; Abalo, G.; Kikafunda, J. (Springer, 2018)

Combining ability of maize (Zea mays L.) inbred lines resistant to stem borers

Beyene, Y.; Mugo, S.; Gakunga, J.; Karaya, H.; Mutinda. C.; Tadele Tefera; Njoka, S.; Chepkesis, D.; Shuma, J.M.; Tende, R. (2011)

Ten inbred parents with varying resistance levels to Chilo partellus and Busseola fusca were crossed in a half diallel mating scheme to generate 45 F1 hybrids. The hybrids and five commercial checks were evaluated across ...

Molecular characterization of diverse CIMMYT maize inbred lines from eastern and southern Africa using single nucleotide polymorphic markers

Semagn, K.; Magorokosho, C.; Vivek, B.; Makumbi, D.; Beyene, Y.; Mugo, S.; Prasanna, B.M.; Warburton, M.L. (2012)

Knowledge of germplasm diversity and relationships among elite breeding materials is fundamentally important in crop improvement. We genotyped 450 maize inbred lines developed and/or widely used by CIMMYT breeding programs ...

Genotype by environment interactions and yield stability of stem borer resistant maize hybrids in Kenya

Beyene, Y.; Mugo, S.; Mutinda, C.; Tadele Tefera; Karaya, H.; Ajanga, S.; Shuma, J.; Tende, R.; Kega, V. (2011)

In a maize breeding program, potential genotypes are usually evaluated in different environments before desirable ones are selected. Genotype x environment (G x E) interaction is associated with the differential performance ...

Grain yield, stem borer and disease resistance of new maize hybrids in Kenya

Tadele Tefera; Mugo, S.; Beyene, Y.; Karaya, H.; Tende, R. (2011)

Evaluation of 30 maize hybrids for yield and resistance to stem borers and foliar diseases in four agro-ecologies in Kenya was conducted in 2009. There were significant differences among the hybrids in leaf damage, number ...

Resistance of Bt-maize (MON810) against the stem borers Busseola fusca (Fuller) and Chilo partellus (Swinhoe) and its yield performance in Kenya

Tadele Tefera; Mugo, S.N.; Mwimali, M.; Anani, B.; Tende, R.; Beyene, Y.; Gichuki, S.; Oikeh, S.O; Nang’ayo, F.; Okeno, J.; Njeru, E.; Pillay, K.; Meisel, B.; Boddupalli, P.M. (Elsevier, 2016)

A study was conducted to assess the performance of maize hybrids with Bt event MON810 (Bt-hybrids) against the maize stem borer Busseola fusca (Fuller) in a biosafety greenhouse (BGH) and against the spotted stem borer ...

Genetic distance among doubled haploid maize lines and their testcross performance under drought stress and non-stress conditions

Beyene, Y.; Mugo, S.; Fentaye Kassa Semagn; Asea, G.; Trevisan, W.; Amsal Tesfaye Tarekegne; Tadele Tefera; Gethi, J.; Kiula, B.; Gakunga, J.; Haraya, H.; Chavangi, A. (2013)

In contrast to conventional inbreeding that takes up to seven generations to develop inbred lines, the doubled haploid (DH) technology allows production of inbred lines in two generations. The objectives of the present ...

Genomic prediction in maize breeding populations with genotyping-by sequencing

Crossa, J.; Beyene, Y.; Semagn, K.; Perez, P.; Hickey, J.M.; Chen Charles; Campos, G. de los; Burgueño, J.; Windhausen, V.S.; Buckler, E.S.; Jannink, J.L.; Lopez Cruz, M.A.; Babu, R. (2013)

Genotyping-by-sequencing (GBS) technologies have proven capacity for delivering large numbers of marker genotypes with potentially less ascertainment bias than standard single nucleotide polymorphism (SNP) arrays. Therefore, ...

Effectiveness of Genomic Prediction of Maize Hybrid Performance in Different Breeding Populations and Environments

Windhausen, V.S.; Atlin, G.N.; Hickey, J.M.; Crossa, J.; Jannink, J-L; Sorrells, M.E.; Babu, R.; Cairns, J.E.; Amsal Tesfaye Tarekegne; Fentaye Kassa Semagn; Beyene, Y.; Grudloyma, P.; Technow, F.; Riedelsheimer, C.; Melchinger, A.E. (2012)

Genomic prediction is expected to considerably increase genetic gains by increasing selection intensity and accelerating the breeding cycle. In this study, marker effects estimated in 255 diverse maize (Zea mays L.) hybrids ...

1
2
3
4
. . .
5