Host-plant mediated influences on population development of Sitobion avenae (Stenorrhyncha: Aphididae)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F99%3A00000017" target="_blank" >RIV/00027006:_____/99:00000017 - 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

Host-plant mediated influences on population development of Sitobion avenae (Stenorrhyncha: Aphididae)

Popis výsledku v původním jazyce

We investigated the effects of genetic differences and host plant density on population development of Sitobion avenae in winter wheat stands. Aphid numbers on ears were recorded on 11 cultivars and on plots were crop density was varied by thinning. Crop density significantly affected whole plant, tiller and ear mass, number of tillers, and leaf area and chlorophyll content. The duration and rate of aphid population growth, and the maximum numbers of aphids were ascertained by weekly counts. Maximum abundances increased with the length of time available for the growth of aphid populations while the rate of population growth was less important. Variation of maximum numbers on different cultivars was not significant. By contrast, there was a significant variation in aphid performance associated with host plant density. Aphid populations on solitary plants persisted longer and became more abundant than in dense stands.

Název v anglickém jazyce

Host-plant mediated influences on population development of Sitobion avenae (Stenorrhyncha: Aphididae)

Popis výsledku anglicky

We investigated the effects of genetic differences and host plant density on population development of Sitobion avenae in winter wheat stands. Aphid numbers on ears were recorded on 11 cultivars and on plots were crop density was varied by thinning. Crop density significantly affected whole plant, tiller and ear mass, number of tillers, and leaf area and chlorophyll content. The duration and rate of aphid population growth, and the maximum numbers of aphids were ascertained by weekly counts. Maximum abundances increased with the length of time available for the growth of aphid populations while the rate of population growth was less important. Variation of maximum numbers on different cultivars was not significant. By contrast, there was a significant variation in aphid performance associated with host plant density. Aphid populations on solitary plants persisted longer and became more abundant than in dense stands.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

GF - Choroby, škůdci, plevely a ochrana rostlin

OECD FORD obor

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Projekt

<a href="/cs/project/GA522%2F97%2F0271" target="_blank" >GA522/97/0271: Tritrofické vztahy určující abundanci mšic na obilovinách a kukuřici</a><br>

Návaznosti

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

Rok uplatnění

1999

Kód důvěrnosti údajů

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

Název periodika

European Journal of Entomology

ISSN

1210-5759

e-ISSN

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Svazek periodika

96

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

7

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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