Tolerance to fusarium verticillioides infection and fumonisin accumulation in maize F1 hybrids and subsequent F2 populations

Simple item page
dc.contributor.authorOuko, Abigaelen_ZA
dc.contributor.authorOkoth, Sheilaen_ZA
dc.contributor.authorNetshifhefhe, Nakisani E. l.en_ZA
dc.contributor.authorViljoen, Altusen_ZA
dc.contributor.authorRose, Lindy Joyen_ZA
dc.date.accessioned2022-04-25T12:12:26Z
dc.date.available2022-04-25T12:12:26Z
dc.date.issued2020-04-24
dc.descriptionCITATION: Ouko, Abigael et al. 2020. Tolerance to fusarium verticillioides infection and fumonisin accumulation in maize F 1 hybrids and subsequent F 2 populations. Agronomy Journal, 112:2432–2444, doi.org/10.1002/agj2.20145.en_ZA
dc.descriptionThe original publication is available at: https://www.researchgate.neten_ZA
dc.description.abstractFusarium verticillioides causes Fusarium ear rot (FER) in maize (Zea mays L.), thus reducing grain quality, yield, and contaminates grains with fumonisins. Grain infection by these fungi occurs before harvest and selection of parental lines resistant to fumonisin accumulation for breeding purposes is the most effective and environmentally friendly control strategy for F. verticillioides. This study intended to evaluate F1 hybrids and F2 breeding populations in Kenya for improved resistance to FER and fumonisin contamination. Trials were artificially inoculated and FER severity, F. verticillioides accumulation, and fumonisin contamination were determined. Inheritance of resistance was also determined in the F1 hybrids. CML444 × MIRTC5, R119W × CKL05015, and CML444 × CKL05015 exhibited little to no FER and had the least fungal and fumonisin contamination, respectively. Inbred lines CML495, CKL05015, and P502 had negative, significant general combining ability (GCA) estimates for F. verticillioides colonization and fumonisin contamination, but positive, significant GCA estimates for 1,000-kernel weight, respectively. The genotype × environment interaction was the main source of variation observed in the F2 populations with R119W × CKL05015 and CML444 × CKL05015 being the most tolerant to fungal and fumonisin contamination in Kiboko and MIRTC5 × CML495 the most tolerant in Katumani.en_ZA
dc.description.versionPublisher's versionen_ZA
dc.format.extent13 pagesen_ZA
dc.identifier.citationOuko, Abigael et al. 2020. Tolerance to fusarium verticillioides infection and fumonisin accumulation in maize F 1 hybrids and subsequent F 2 populations. Agronomy Journal, 112:2432–2444, doi.org/10.1002/agj2.20145en_ZA
dc.identifier.otherdoi.org/10.1002/agj2.20145
dc.identifier.urihttp://hdl.handle.net/10019.1/124473
dc.language.isoen_ZAen_ZA
dc.publisherWiley Periodicalsen_ZA
dc.rights.holderAuthors retain copyrighten_ZA
dc.subjectFusarium verticillioides infectionsen_ZA
dc.subjectGrain infectionen_ZA
dc.subjectF1 hybridsen_ZA
dc.subjectF2 breeding populationsen_ZA
dc.subjectFumonisins -- Toxicologyen_ZA
dc.subjectFeeds -- Contaminationen_ZA
dc.subjectMaize farming -- Keniaen_ZA
dc.titleTolerance to fusarium verticillioides infection and fumonisin accumulation in maize F1 hybrids and subsequent F2 populationsen_ZA
dc.typeArticleen_ZA
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
ouko_tolerance_2020.pdf
Size:
273.26 KB
Format:
Adobe Portable Document Format
Description:
Main article
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Research Articles (Plant Pathology)