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Seed health in potatoes (Liveseed Practice Abstract)

{Tool} Seed health in potatoes (Liveseed Practice Abstract). Creator(s): de Buck, A.J.. Issuing Organisation(s): LBI - Louis Bolk Institute. Liveseed Practice Abstract, no. 28. (2020)

[thumbnail of Seed health in potatoes] PDF - English (Seed health in potatoes)
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Document available online at: https://www.liveseed.eu/wp-content/uploads/2020/04/PA28_Seed-health-in-potatoes.pdf


Summary

Organic seed potatoes A typical variety for organic farming allows for moderate fertilization levels, has a stable product quality under stress conditions, is broad resistant against Late Blight and virus and has a short field period.
Virus Potato virus X and Y are spread by aphids or by cross-contamination. They can show symptoms, like ‘squeezed’ or rolled leaf growth, yellowing or mosaic patterns, mostly on top of the plant. However, the expression is dependent on variety, crop maturity and growing conditions. Rogueing basic seed lots is key, which takes experience. A diseased plant can be missed, particularly in varieties that show no symptoms; causing ‘secondary disease’ next season. Bacterial soft rot or blackleg Pectobacterium and Dickeya (Erwinia): plants fall due to stem rot or wilting, with creamy tuber spots and a fishy smell. Virus rogueing is a notorious path for Erwinia spread. Like virus, infested tubers may be symptomless, enabling ‘invisible’ spread through a seed lot. Farm hygiene is the only control measure.


EPrint Type:Practice tool
What problem does the tool address?:The potato crop is susceptible to many pathogens. Potato virus and bacterial soft rot are most actual -but definitely not the only- problems in seed production. Yield losses can go up to 50-70% or complete crop failure.
What solution does the tool offer?:A typical variety for organic farming allows for moderate fertilization levels, has a stable product quality under stress conditions, is broad resistant against Late Blight and virus and has a short field period.
Country:Netherlands
Type of Practice Tool:Practice abstracts
Keywords:seeds, seed health, seed quality, potato, potatoes, root crops
Agrovoc keywords:
Language
Value
URI
English
seeds
http://aims.fao.org/aos/agrovoc/c_6946
English
seed quality
http://aims.fao.org/aos/agrovoc/c_14172
English
root crops
http://aims.fao.org/aos/agrovoc/c_6641
Subjects: Crop husbandry > Breeding, genetics and propagation
Crop husbandry > Production systems > Root crops
Research affiliation: Netherlands > Louis Bolk Institute
European Union > Horizon 2020 > Liveseed
European Union > Horizon 2020 > Liveseed > Liveseed tools
H2020 or FP7 Grant Agreement Number:727230
Related Links:https://organic-farmknowledge.org/tool/37870, https://orgprints.org/37870, http://www.louisbolk.org/nl/home
Project ID:oknet
Deposited By: Ortolani, Dr. Livia
ID Code:37870
Deposited On:14 Apr 2020 07:14
Last Modified:24 Nov 2020 13:21
Document Language:English
Status:Published

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