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Postharvest Storage Losses Associated with Rhizomania in Sugar Beet

Permanent URL:
http://handle.nal.usda.gov/10113/16938
Abstract:
During storage of sugar beet, respiration and rots consume sucrose and produce invert sugar. Diseases that occur in the field can affect the magnitude of these losses. This research examines the storage of roots with rhizomania (caused by Beet necrotic yellow vein virus) and the effectiveness of rhizomania-resistant hybrids in reducing postharvest losses. Roots of susceptible hybrids from sites with rhizomania had respiration rates 30 days after harvest (DAH) that ranged from 0.68 to 2.79 mg of CO2 kg1 h1 higher than roots of the resistant hybrids. This difference ranged from 2.60 to 13.88 mg of CO2 kg1 h1 120 DAH. Roots of resistant hybrids from sites with rhizomania had 18 kg more sucrose per ton than roots from susceptible hybrids 30 DAH, with this difference increasing to 55 kg Mg1 120 DAH. The invert sugar concentration of susceptible hybrids from sites with rhizomania ranged from 8.38 to 287 g per 100 g of sucrose higher than that for resistant hybrids 120 DAH. In contrast, differences between susceptible and resistant hybrids in respiration rate, sucrose loss, and invert sugar concentration in the absence of rhizomania were relatively small. Storage losses due to rhizomania can be minimized by planting resistant hybrids and processing roots from fields with rhizomania soon after harvest.
Author(s):
Campbell, L.G. , Klotz, K.L. , Smith, L.J.
Subject(s):
Beta vulgaris , sugar beet , postharvest losses , Beet necrotic yellow vein virus , plant diseases and disorders , plant viruses , root rot , glucose , fructose , sucrose , disease resistance , cell respiration , postharvest physiology , carbon dioxide
Format:
p. 575-580.
Note:
Includes references
Source:
Plant disease: an international journal of applied plant pathology 2008 Apr., v. 92, no. 4
Language:
English
Year:
2008
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
File:
Download [PDF File]
Rights:
Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.