Efficacy of visual evaluation of insect- damaged kernels of malting barley by Sitophilus granarius from various observation perspectives

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F20%3A10149303" target="_blank" >RIV/00027006:_____/20:10149303 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0022474X20303970" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0022474X20303970</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jspr.2020.101711" target="_blank" >10.1016/j.jspr.2020.101711</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Efficacy of visual evaluation of insect- damaged kernels of malting barley by Sitophilus granarius from various observation perspectives

Popis výsledku v původním jazyce

Although there is growing evidence that arthropod detection methods are not sensitive enough to meet current quality demands, few adequate validations are available for the detection of insect-damaged kernels (IDK- quality parameter). Therefore the aims of this work were to (i) describe categories of exit holes of Sitophilus granarius (L.) in terms of their location on the grain surface; (ii) analyse spatial distribution of exit holes on kernels of three varieties of malting barley; (iii) analyse the sensitivity of visual laboratory methods for IDK detection, and (iv) test if the turning effect of automatic shaking can increase damage visibility from the upper-view perspective of an inspector. Six topological categorises of exit holes were described and photo-documented. It was found that the relative distribution of exit holes on the kernel surface was in decreasing order from lateral, brush, ventral or dorsal (depending on variety), subapical, to germ area. The ventral and dorsal exit holes were significantly bigger than the apical exit holes. It was found that distribution patterns of exit holes on kernels affected their proportional visibility from various observation perspectives. Only 50% of lateral or dorsal exit holes was visible from top or crease views, respectively. The most effective was the side (brush end) view perspective, with visibility of up to 90% of exit holes. Although the shaking effect was statistically significant, it only increased the efficacy of upper view detection perspective from 54% to 58%. This is the first study showing that the inspector upper view of inspected grain samples (without grain rotation) poses a risk of underestimating actual insect-damaged kernels by 50%. Thus, advanced methods that are independent of observation perspectives (X-ray, NIRS, etc.) should be promoted for routine use in commercial laboratories, despite higher cost. (C) 2020 Elsevier Ltd. All rights reserved.

Název v anglickém jazyce

Efficacy of visual evaluation of insect- damaged kernels of malting barley by Sitophilus granarius from various observation perspectives

Popis výsledku anglicky

Although there is growing evidence that arthropod detection methods are not sensitive enough to meet current quality demands, few adequate validations are available for the detection of insect-damaged kernels (IDK- quality parameter). Therefore the aims of this work were to (i) describe categories of exit holes of Sitophilus granarius (L.) in terms of their location on the grain surface; (ii) analyse spatial distribution of exit holes on kernels of three varieties of malting barley; (iii) analyse the sensitivity of visual laboratory methods for IDK detection, and (iv) test if the turning effect of automatic shaking can increase damage visibility from the upper-view perspective of an inspector. Six topological categorises of exit holes were described and photo-documented. It was found that the relative distribution of exit holes on the kernel surface was in decreasing order from lateral, brush, ventral or dorsal (depending on variety), subapical, to germ area. The ventral and dorsal exit holes were significantly bigger than the apical exit holes. It was found that distribution patterns of exit holes on kernels affected their proportional visibility from various observation perspectives. Only 50% of lateral or dorsal exit holes was visible from top or crease views, respectively. The most effective was the side (brush end) view perspective, with visibility of up to 90% of exit holes. Although the shaking effect was statistically significant, it only increased the efficacy of upper view detection perspective from 54% to 58%. This is the first study showing that the inspector upper view of inspected grain samples (without grain rotation) poses a risk of underestimating actual insect-damaged kernels by 50%. Thus, advanced methods that are independent of observation perspectives (X-ray, NIRS, etc.) should be promoted for routine use in commercial laboratories, despite higher cost. (C) 2020 Elsevier Ltd. All rights reserved.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Projekt

<a href="/cs/project/LTACH19029" target="_blank" >LTACH19029: Invazivní mechanismy hospodářsky významných skladištních hmyzích škůdců ohrožujících čínský a evropský mezinárodní obchod a systémy fytosanitární techniky pro jejich omezování</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

JOURNAL OF STORED PRODUCTS RESEARCH

ISSN

0022-474X

e-ISSN

—

Svazek periodika

89

Číslo periodika v rámci svazku

DEC 2020

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

101711

Kód UT WoS článku

000591857300027

EID výsledku v databázi Scopus

2-s2.0-85090739184