Stability of Solanum aethiopicum Shum accessions under varied water deficit stress levels and identification of pertinent breeding traits for resistance to water shortage

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dc.contributor.authorSseremba, Godfrey
dc.contributor.authorTongoona, Pangirayi
dc.contributor.authorYaw Eleblu, John Savior
dc.contributor.authorDanquah, Eric Yirenkyi
dc.contributor.authorKaweesi, Tadeo
dc.contributor.authorBaguma, Yona
dc.contributor.authorMasanza, Michael
dc.contributor.authorBalyejusa Kizito, Elizabeth
dc.date.accessioned2022-12-29T21:49:45Z
dc.date.available2022-12-29T21:49:45Z
dc.date.issued2018
dc.description.abstractDrought is a major constraint to productivity of Solanum aethiopicum ‘Shum’ group due to loss in market and nutrient value of stressed plants. This study evaluated S. aethiopicum Shum group accessions to identify genotypes (G) that excel across moisture deficit stress levels (WLs). A split-plot arrangement composed of four WLs and twenty accessions of S. aethiopicum as main plot and subplot factors, respectively, was implemented in a screenhouse, and repeated for two experiments. In each experiment, there was a highly significant effect of at least two WLs on mean performance among at least two accessions for most of the traits at p\0.05. Further, very highly significant WL 9 G interactions were obtained for leaf relative water content (LRWC), leaves per plant (LPP) and plant height (PH), and nonsignificant for leaf blade length and leaf blade width. The order of priority as breeding traits for stability superiority across WLs was suggested as LRWC[PH[LPP. Consequently, based on LRWC, the most superiorly stable accessions were identified as accession 160 followed by accessions 145, 137, 108P and 184G while the least stable ones were identified as accessions 163G, 141, 163 and 108. The broad sense heritability (H2) for each of the three recommended traits for drought resistance breeding was above 0.9 thus supportive for a good response to selection. Drought stress negatively affected the performance of S. aethiopicum Shum group but the exhibited variation allowed for selection of superiorly stable genotypes.en_US
dc.identifier.citationSseremba, G., Tongoona, P., Eleblu, J. S. Y., Danquah, E. Y., Kaweesi, T., Baguma, Y., ... & Kizito, E. B. (2018). Stability of Solanum aethiopicum Shum accessions under varied water deficit stress levels and identification of pertinent breeding traits for resistance to water shortage. Euphytica, 214(1), 1-11. https://doi.org/10.1007/s10681-017-2097-8en_US
dc.identifier.urihttps://doi.org/10.1007/s10681-017-2097-8
dc.identifier.urihttps://nru.uncst.go.ug/handle/123456789/6767
dc.language.isoenen_US
dc.publisherEuphyticaen_US
dc.subjectDrought stressen_US
dc.subjectLeafy vegetablesen_US
dc.subjectLeaf relative water contenten_US
dc.subjectPlant heighten_US
dc.subjectStability superiorityen_US
dc.titleStability of Solanum aethiopicum Shum accessions under varied water deficit stress levels and identification of pertinent breeding traits for resistance to water shortageen_US
dc.typeArticleen_US
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