The effect of couch grass (Elytrigia repens L.) infestation on lucerne (Medicago sativa L.) yield formation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F06%3A16368" target="_blank" >RIV/60460709:41210/06:16368 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

The effect of couch grass (Elytrigia repens L.) infestation on lucerne (Medicago sativa L.) yield formation

Original language description

The aim of this study was to investigate the effect of Elytrigia repens (L.) infestation on yield formation of lucerne (Medicago sativa L.). The experiment with six lucerne germplasms was arranged in completely randomised blocks in 2003. In 2004 ? 2005,the measurement and sampling were repeatedly realized from the late vegetative to the early flowering stage in the first cut. The compressed height (CH) of stand by rising-plate meter and number of plants (P m-2) per each sampling point were measured. The number of most mature (mmS) and other stems (oS), total number of stems (sumS), stems number per plant (SpP), weight of stem (FMwS or DMwS), total dry matter yield (total DMY), weight of couch grass (calculated as weed ratio from total yield), lucernedry matter yield (DMY), and fresh matter yield (FMY) was assessed by each sample. The increase of infestation caused slow reduction of CH, FMwS, DMwS and SpP, strong reduction of mmS and sumS, significant (&#945;=0.05) reduction of P m-2.

Czech name

Vliv zaplevelení pýrem plazivým na tvorbu výnosu vojtěšky seté

Czech description

The aim of this study was to investigate the effect of Elytrigia repens (L.) infestation on yield formation of lucerne (Medicago sativa L.). The experiment with six lucerne germplasms was arranged in completely randomised blocks in 2003. In 2004 ? 2005,the measurement and sampling were repeatedly realized from the late vegetative to the early flowering stage in the first cut. The compressed height (CH) of stand by rising-plate meter and number of plants (P m-2) per each sampling point were measured. The number of most mature (mmS) and other stems (oS), total number of stems (sumS), stems number per plant (SpP), weight of stem (FMwS or DMwS), total dry matter yield (total DMY), weight of couch grass (calculated as weed ratio from total yield), lucernedry matter yield (DMY), and fresh matter yield (FMY) was assessed by each sample. The increase of infestation caused slow reduction of CH, FMwS, DMwS and SpP, strong reduction of mmS and sumS, significant (&#945;=0.05) reduction of P m-2.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

GC - Plant growing, crop rotation

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2006

Confidentiality

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

Name of the periodical

Zeitschrift für Pflanzenkrank.und Pflanzenschutz

ISSN

0340-8159

e-ISSN

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Volume of the periodical

20

Issue of the periodical within the volume

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Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

7

Pages from-to

853-859

UT code for WoS article

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EID of the result in the Scopus database

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