Bataadi säilitushaigus fusarioos
Laen...
Kuupäev
2026
Kättesaadavus
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Eesti Maaülikool; Maaelu Teadmuskeskus
Abstrakt
The cultivation of sweet potato (Ipomoea batatas L.) under Estonian field conditions
has been studied at the Estonian University of Life Sciences since 2018. A cultivation
technology suitable for Nordic conditions has been developed under plastic mulch,
and experience has been gained with various cultivation technologies, cultivars, and
fertilization regimes. As sweet potato cultivation area expands in Estonia, postharvest
handling, storage management, and yield losses during storage are expected to pose
increasing challenges.
This study evaluated the susceptibility of sweet potato grown in Estonia to major
storage diseases, identified the most damaging pathogens, and assessed the effects of
cultivar and fertilisation regime on disease incidence. A total of seven orange-fleshed,
red-skinned cultivars were selected for the field trial in 2024: three bred in the USA
(‘Beauregard’, ‘Covington’ and ‘Evangeline’) and four in Europe (‘Erato Early Orange’,
‘Erato Orange’, ‘Erato Compact Orange’ and ‘Erato Deep Orange’; Lubera, Volmary
Ltd., Erato group). Two fertilization regimes were applied: unfertilized control
and fertilized (50 kg N ha-1) treatment.
The study revealed that the storability of sweet potato grown in Estonia was generally
good. However, occasional infections of storage roots by Fusarium root rot were observed,
with disease severity depending on cultivar and fertilisation regime. During
2024 growing season, no Fusarium root rot damage was detected at the harvest. Disease
spots appeared later during storage (approximately 1.5 months after harvest) on the
storage roots of cultivar ‘Erato Compact Orange’. Nearly five months after harvest, the
cultivars with the least damaged storage roots were ‘Beauregard’, ‘Erato Deep Orange’,
‘Covington’ and ‘Evangeline’.
Based on this field experiment, all tested cultivars can be recommended for field cultivation
under Nordic climate conditions. However, the storage roots of ‘Erato Compact
Orange’ might be more susceptible to Fusarium root rot during storage than those of the
other cultivars tested.
Kirjeldus
Märksõnad
sweet potato, storage roots, Fusarium root rot, plant health, articles
Viide
Runno-Paurson, E., Vester, L., Lääniste, P., & Niinemets, Ü. (2026). Bataadi säilitushaigus fusarioos. Eesti Maaülikool; Maaelu Teadmuskeskus. https://doi.org/10.15159/AGR.26.18