Competitive relationship Sclerotinia sclerotiorum and damage of Ceutorhynchus spp. larvae in stems of winter oil seed rape

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26784246%3A_____%2F18%3AN0000030" target="_blank" >RIV/26784246:_____/18:N0000030 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Competitive relationship Sclerotinia sclerotiorum and damage of Ceutorhynchus spp. larvae in stems of winter oil seed rape

Popis výsledku v původním jazyce

This study was conducted in commercial winter oilseed rape fields (21 different localities included) placed in north-eastern part of the Czech Republic (northern Moravia) in 2017. Some significant relationships between the development of sclerocia of Sclerotinia sclerotiorum (Bayer code: SCLESC) in infested stems and the levels of damage induced by cabbage stem resp. rape weevils (Ceutorhynchus pallidactylus resp. C. napi) were recorded. There was significant negative correlation between the level of damage induced by Ceutorhynchus larvae (expressed as percentage damage of stem tissues per plant) and the total number resp. weight of sclerotia in stems. It means that with increasing level of damage of tissues SCLESC in stems induced by Ceutorhynchus larvae, the number and total weight of sclerotia was decreasing in rape plants (only rape plants infested by SCLESC were included in the assessment). These results indicate some competitive relations between the two harmful organisms in rape crops. Contrary to that the number of sclerotia and their total weights in plants were correlated positively. At the same time total number of sclerotia produced in rape crops tended to be positively correlated with increasing portion of infested plants by SCLESC in crops.

Název v anglickém jazyce

Competitive relationship Sclerotinia sclerotiorum and damage of Ceutorhynchus spp. larvae in stems of winter oil seed rape

Popis výsledku anglicky

This study was conducted in commercial winter oilseed rape fields (21 different localities included) placed in north-eastern part of the Czech Republic (northern Moravia) in 2017. Some significant relationships between the development of sclerocia of Sclerotinia sclerotiorum (Bayer code: SCLESC) in infested stems and the levels of damage induced by cabbage stem resp. rape weevils (Ceutorhynchus pallidactylus resp. C. napi) were recorded. There was significant negative correlation between the level of damage induced by Ceutorhynchus larvae (expressed as percentage damage of stem tissues per plant) and the total number resp. weight of sclerotia in stems. It means that with increasing level of damage of tissues SCLESC in stems induced by Ceutorhynchus larvae, the number and total weight of sclerotia was decreasing in rape plants (only rape plants infested by SCLESC were included in the assessment). These results indicate some competitive relations between the two harmful organisms in rape crops. Contrary to that the number of sclerotia and their total weights in plants were correlated positively. At the same time total number of sclerotia produced in rape crops tended to be positively correlated with increasing portion of infested plants by SCLESC in crops.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

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

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

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