Managing the interactions between soil abiotic factors to alleviate the effect of Fusarium wilt in bananas

R.A. Segura, Jetse Stoorvogel, J.Z. Samuels, J.A. Sandoval

Research output: Chapter in Book/Report/Conference proceedingConference Article in proceedingAcademicpeer-review

Abstract

Soil management offers various options to alleviate the effects of Fusarium wilt caused by Fusarium oxysporum f. sp. cubense (Foc) in bananas. Nevertheless, it receives little attention as a strategy in Fusarium wilt management. Literature provides ample evidence linking soil conditions such as soil texture and fertility to the spread and severity of plant diseases. However, the inconsistency of results between case studies limits the attention of soil management in crop disease management. The present study aimed at unravelling the role of soil abiotic factors on nutrient concentrations in plant tissue, biomass production and the incidence of Fusarium wilt (Foc race 1) in bananas (‘Gros Michel’, AAA) under field conditions. A large field trial was established in which the effects of soil pH and nutrients (N, Ca, Mg and Mn) were studied. Around 30% of the plants showed symptoms of Fusarium wilt at flowering in the first season. However, Fusarium wilt incidence did not vary between treatments. Soil pH showed significant interactions with soil N and Mn concentrations resulting in a lower bunch weight and increased micronutrient concentrations in the pseudostem. With a higher pH, bunch weight increased, although higher Mn concentrations suppressed this positive effect. Interactions between a high soil pH and Ca and Mg resulted in a higher bunch weight and lower micronutrient concentrations in the pseudostem. The results can be used to develop soil management strategies for improving banana productivity in infected plantations.
Original languageEnglish
Title of host publicationProceedings of the X International Symposium on Banana
Subtitle of host publicationISHS - ProMusa Symposium on Agroecological Approaches to Promote Innovative Banana Production Systems
EditorsI. Van den Bergh, J.M. Risède, V. Johnson
Place of PublicationMontepellier
PublisherInternational Society for Horticultural Science
Pages163-168
Number of pages6
Volume1
ISBN (Print)9789462611924
DOIs
Publication statusPublished - 31 Mar 2018
Externally publishedYes
EventX International Symposium on Banana: ISHS-ProMusa Symposium on Agroecological Approaches to Promote Innovative Banana Production Systems - Montepellier, France
Duration: 10 Oct 201614 Oct 2016
https://ishs-promusa2016.cirad.fr/

Symposium

SymposiumX International Symposium on Banana
Country/TerritoryFrance
CityMontepellier
Period10/10/1614/10/16
Internet address

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