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Canopy cover evolution, diurnal patterns and leaf area index relationships in a Mchare and Cavendish banana cultivar under different soil moisture regimes

dc.contributor.authorStevens, B.
dc.contributor.authorDiels, J.
dc.contributor.authorVanuytrecht, E.
dc.contributor.authorBrown, A.
dc.contributor.authorBayo, S.
dc.contributor.authorRujweka, A.
dc.contributor.authorRichard, E.
dc.contributor.authorNdakidemi, P.A.
dc.contributor.authorSwennen, R.
dc.date.accessioned2020-09-28T15:34:37Z
dc.date.available2020-09-28T15:34:37Z
dc.date.issued2020-10
dc.identifier.citationStevens, B., Diels, J., Vanuytrecht, E., Brown, A., Bayo, S., Rujweka, A., ... & Swennen, R. (2020). Canopy cover evolution, diurnal patterns and leaf area index relationships in a Mchare and Cavendish banana cultivar under different soil moisture regimes. Scientia Horticulturae, 272, 109328: 1-10.
dc.identifier.issn0304-4238
dc.identifier.urihttps://hdl.handle.net/20.500.12478/6951
dc.description.abstractThe biggest abiotic threat to banana (Musa spp.) production is water deficit, but physiological indicators in plantations are lacking. Canopy Cover (CC) seems to be a relevant parameter, but so far not used in banana fields. Field experiments were conducted to determine the effect of optimal irrigation (FI) versus rainfed (RF) on CC and Leaf Area Indices (LAI) in two experiments with different cultivars (Mchare ‘Huti Green’ [HG, AA] and Cavendish ‘Grand Naine’[GN, AAA]) (n = 3 for HG, n = 4 for GN) until harvest of cycle 1 (C1), studying C1 and C2 plants. Soil moisture was followed using Time Domain reflectometry. CC and LAI were reduced 8–9 weeks after the start of soil moisture divergence between RF and FI treatments in both experiments (p < 0.05), leading to a reduction in CC growth rate (r) and maximum CC (CCmax) in RF plots (p < 0.05). On a daily timescale, CC varied diurnally (i.e. was reduced) under high evaporative demands, whereby soil moisture depletion increased the CC reduction. Cultivar specific CC-LAI curves were created following the Lambert-Beer equation, whereby HG had a lower extinction coefficient than GN (0.52 vs. 0.67). CC growth over time seems a promising indicator for water deficit in the field. Diurnally, CC is more affected by evaporative demand than soil moisture depletion, although soil moisture depletion increases CC diurnal drops under high ET0.
dc.format.extent1-10
dc.language.isoen
dc.subjectBananas
dc.subjectCanopy
dc.subjectLeaf Area Index
dc.subjectSoil Moisture
dc.subjectIrrigation
dc.subjectDrones (Insects)
dc.subjectAbiotic Stress
dc.subjectClimate Change
dc.titleCanopy cover evolution, diurnal patterns and leaf area index relationships in a Mchare and Cavendish banana cultivar under different soil moisture regimes
dc.typeJournal Article
cg.contributor.crpAgriculture for Nutrition and Health
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.affiliationKatholieke Universiteit, Leuven
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationNelson Mandela African Institution of Science and Technology, Tanzania
cg.contributor.affiliationBioversity International
cg.contributor.affiliationFlemish Institute for Technological Research, Belgium
cg.coverage.regionAfrica
cg.coverage.regionEast Africa
cg.coverage.countryTanzania
cg.coverage.hubEastern Africa Hub
cg.researchthemeBiotech and Plant Breeding
cg.identifier.bibtexciteidSTEVENS:2020
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectAgronomy
cg.iitasubjectBanana
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Production
cg.journalScientia Horticulturae
cg.notesPublished online: 9 Jun 2020
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.1016/j.scienta.2020.109328
cg.iitaauthor.identifierAllen Brown: 0000-0002-4468-5932
cg.iitaauthor.identifierRony Swennen: 0000-0002-5258-9043
cg.futureupdate.requiredNo


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