Common sunflower (Helianthus annuus var. anuus) ? potential threat to coexistence of sunflower crops in Central Europe

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F05%3A12423" target="_blank" >RIV/60460709:41210/05:12423 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Common sunflower (Helianthus annuus var. anuus) ? potential threat to coexistence of sunflower crops in Central Europe

Original language description

Common sunflower (Helianthus annuus var. annuus) has been found in the Czech Republic since the 1960?s. This species exists as a ruderal on railways and at river ports. It has been reported twice on arable land but its presence was only temporary. In 2004, we have found a dense population of sunflower on arable land. The infested crop was sunflower with common sunflower plants dispersed mainly in the field margins, however some plants were in the mainpart of the field. Common sunflower was also growingin ruderal habitats near the field. We predict the following consequences of common sunflower spread through the country: it could become a problem weed in sunflower crops due to the non-availability of a selective herbicide; as a weed, this species could infest other crops, which currently suffer from volunteer sunflower occurrence, such as maize, beet or soybeans. Gene flow can occur between this weedy form and the crop, and this must be considered during the risk assessment of transge

Czech name

Planá forma slunečnice (Helianthus annuus var. anuus) - potenciální riziko koexistence pěstování slunečnice ve střední Evropě

Czech description

Common sunflower (Helianthus annuus var. annuus) has been found in the Czech Republic since the 1960?s. This species exists as a ruderal on railways and at river ports. It has been reported twice on arable land but its presence was only temporary. In 2004, we have found a dense population of sunflower on arable land. The infested crop was sunflower with common sunflower plants dispersed mainly in the field margins, however some plants were in the mainpart of the field. Common sunflower was also growingin ruderal habitats near the field. We predict the following consequences of common sunflower spread through the country: it could become a problem weed in sunflower crops due to the non-availability of a selective herbicide; as a weed, this species could infest other crops, which currently suffer from volunteer sunflower occurrence, such as maize, beet or soybeans. Gene flow can occur between this weedy form and the crop, and this must be considered during the risk assessment of transge

Type

D - Article in proceedings

CEP classification

GF - Diseases, pests, weeds and plant protection

OECD FORD branch

—

Project

—

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2005

Confidentiality

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

Article name in the collection

GMCC 05 - Proceedings. Second International Conference on Co-existence between GM and non-GM based agricultural supply chains

ISBN

87-984996-5-3

ISSN

—

e-ISSN

—

Number of pages

2

Pages from-to

271-272

Publisher name

Agropolis Productions

Place of publication

Montpellier

Event location

Montpellier

Event date

Nov 14, 2005

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

—