Výsledky vyhledávání - "Kirchner, Wolfgang"

Akademický článek

Frequency and intensity of guttation events in different crops in Germany

Autor: Joachimsmeier, Ina, Pistorius, Jens, Heimbach, Udo, Schenke, Detlef, Kirchner, Wolfgang, Zwerger, Peter

Publikováno v: Julius-Kühn-Archiv, Iss 437, Pp 87-90 (2012)

Background: In crops of economic relevance and some common weeds in Germany, several glasshouse and field trials were conducted at the JKI and cooperating research partners (DWD, IfZ, BDP and UFOP) from 2009 to 2011. Aim of the investigations was to

Externí odkaz: https://doaj.org/article/85981c12b1224782a66d79eda526d87e

Zobrazit plný text záznamu

Akademický článek

Water collection by honey bees – How far will foragers fly to use water sources like guttation drops? A first distance trial using cereals and oilseed rape

Autor: Joachimsmeier, Ina, Pistorius, Jens, Heimbach, Udo, Schenke, Detlef, Kirchner, Wolfgang

Publikováno v: Julius-Kühn-Archiv, Iss 437, Pp 82-86 (2012)

Background: Depending on the location, various water sources may be available for bee colonies. These sources can be permanent, such as ponds, or incidental like dew or guttation droplets. The aim of the experiment was to investigate whether bees pre

Externí odkaz: https://doaj.org/article/c5c8e6ad36994a879dbf07298b8ff74a

Zobrazit plný text záznamu

Akademický článek

Guttation and risk for honey bee colonies (Apis mellifera L.): Use of guttation drops by honey bees after migration of colonies - a field study

Autor: Joachimsmeier, Ina, Pistorius, Jens, Schenke, Detlef, Kirchner, Wolfgang

Publikováno v: Julius-Kühn-Archiv, Iss 437, Pp 76-79 (2012)

Background: The aim of this experiment was to investigate whether honeybees from colonies that are not familiar with their surrounding landscape, due to short-distance migration to a new location, are more at risk by guttation drops from seed-treated

Externí odkaz: https://doaj.org/article/74ee582a78e34c2eb8adca95f5ac8d5f

Zobrazit plný text záznamu