Yield and quality of two hulless barley varieties after inoculation with Fusarium culmorum

Irena Sedláčková,Ivana Políšenská,Jan Frydrych,Kateřina Vaculová,Ondřej Jirsa

doi:10.18832/kp2019.65.17

Irena Sedláčková, Ivana Políšenská + Show 3 more

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https://doi.org/10.18832/kp2019.65.17

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Abstract

The effect of F. culmorum inoculation on the yield and quality of grain of AF Cesar and AF Lucius barley varieties was monitored. Field experiments were conducted between 2015-2017 at two locations. In grain harvested from plots grown under natural infection conditions, the deoxynivalenol content was very low. Inoculation caused a decline in germination, a certain reduction in yield and a change in some qualitative parameters (reduction in protein and fiber content, increase in starch content), but the effect of inoculation was weak and significantly influenced by the environment and the variety. The β-glucan content was not affected by inoculation. The varieties differed significantly from each other in β-glucan content (AF Cesar > AF Lucius). The deoxynivalenol content of both varieties was comparable after the inoculation while it differed under conditions of the natural infection (AF Cesar < AF Lucius).

Highlights

For thousands of years, barley was the dominant crop for feeding, production of fermented drinks and especially in its hulless form (Hordeum vulgare L. var. nudum Hook. f.), used as food
Quality and DON content of two varieties of hulless barley (AF Cesar, AF Lucius) after inoculation with Fusarium culmorum
The difference between varieties in DON content was inconclusive in the I variants (mean: AF Cesar (979 ± 1456) μg/kg, AF Lucius (412 ± 617) μg/kg), mean DON values were low and were around limit of quantification (LOQ): AF Cesar < LOQ, AF Lucius (27 ± 20) μ g/kg

Summary

Introduction

Barley was the dominant crop for feeding, production of fermented drinks and especially in its hulless form (Hordeum vulgare L. var. nudum Hook. f.), used as food. Fusarium spp. can produce enzymes capable of modifying and decomposing storage matter of grain, such as proteins and carbohydrates, in order to be more accessible for their utilization This was documented mainly for wheat (Eggert et al, 2010a; Kreuzberger et al, 2015), and for barley (Pekkarinen et al, 2000), including its hulless form (Eggert et al 2010b; Eggert and Pawelzik, 2011). Quality (germination, TKW, TW, content of crude protein, β -glucans, starch, fat and fiber) and DON content of two varieties of hulless barley (AF Cesar, AF Lucius) after inoculation with Fusarium culmorum These parameters in grain harvested from inoculated plots in the 3-year field trial at 2 locations were compared with those in grain from non-inoculated plots

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