Browsing Naturwissenschaften, Mathematik und Informatik by Referee "Isselstein, Johannes Prof. Dr."
Now showing items 21-40 of 58
-
Seasonality and dynamics of the semi-deciduous transition forests of the Araguaia floodplain, Brazil
(2017-06-30)Araguaia floodplain is the large floodplain area in the Neotropics located in the transition zone of Amazon forest and cerrado. The region is characterized by seasonal flooding and pronounced dry seasons. We recorded all ... -
Application of molecular markers in selected breeding material and plant genetic resources of Lolium perenne L.
(2016-01-06)Out-crossing perennial ryegrass (Lolium perenne L.) is the most important forage grass species in temperate regions. It is also proposed as a sustainable source of biomass for energy production. However, the improvement ... -
Understanding potential yield in the context of the climate and resource constraint to sustainably intensify cropping systems in tropical and temperate regions
(2015-04-24)There is a general consensus that world food production has to be increased significantly to fulfill the growing demand until 2050. However, at the same time resource use efficiency has to be improved due to declining ... -
Students’ Interests in Agriculture: The Impact of School Farms Regarding Fifth and Sixth Graders
(2015-02-24)The present way of intensive agricultural production is closely connected to central issues of sustainable development such as the loss of biodiversity and climate change. The corresponding importance of agriculture stands ... -
Spatial scale, plant identity and management effects on the diversity-productivity relationship in a semi-natural grassland
(2014-12-18)Present study was aimed at examining the effects of spatial scale, plant identity and management on the relationship between diversity and productivity in an old semi-natural grassland in the Solling uplands, Germany. The ... -
Influence of grassland management on the abundance of the endophytic fungi Neotyphodium
(2014-11-26)The endophytic fungus Neotyphodium spec. Glenn, Bacon and Hanlin is common in many temperate grass species. This fungus is known to enhance the resistance of its host to adverse environmental conditions and to promote its ... -
Landscape change and impoverishment in North German grasslands since the 1950s
(2014-09-05)Landscape and agricultural management has changed in Central Europe dramatically since the large-scale intensification processes (e.g. meliorations, synthetic fertilizer and herbicide use) started in the 1950/60s. Today, ... -
Genetische Analysen für eine markergestützte Verbesserung der Trockenstresstoleranz von Winterackerbohnen
(2014-08-04)In this analysis, aiming to prepare for marker-assisted selection of drought tolerance in autumn sown faba bean (Vicia faba L.), 196 winter-type and four spring-type inbred lines were genotyped. Physiological traits such ... -
Genetic variation and inheritance of seed fibre content in winter oilseed rape (Brassica napus L.)
(2014-06-13)The meal from oilseed rape is a valuable product as substitution for soybean meal in animal diets due to its high protein content and its excellent balanced composition of essential amino acids. However, the presence of ... -
Effects of management on biodiversity and productivity of grazed grassland
(2014-04-30)Grazing is seen as a promising tool to maintain and enhance biodiversity due to the creation of structurally diverse pastures. So far, grassland biodiversity has been studied in relation to various grazing management ... -
Plant - Invertebrate Interactions in Agriculturally Managed Grasslands Under Functional Group Manipulation
(2013-12-12)Within the last few centuries the rapid growth of the human population, along with increasing economic development, has caused increasing demands for agricultural products such as food and fuel. This has led to an extension ... -
Response to disturbance and plant-animal interactions of grassland swards for chicken free-range husbandry
(2013-08-27)The aim of the present study was to evaluate the suitability of fourteen grassland plant species for establishing swards for free-range chicken husbandry. Nine grasses and five forbs which are known for their good performance ... -
Sustainable grassland herbage production under drought stress - the role of plant species number and functional group composition
(2013-06-14)Producing grassland herbage with high yield and good nutritive value is a prerequisite of an efficient ruminant livestock production. Due to climate change, precipitation patterns are expected to vary and the frequency of ... -
Performance of underutilized forage legumes as an alternative to Trifolium repens under drought stress: yield, water utilization and nutritive value
(2013-05-31)Grassland with a high productivity and fodder quality forms the basis for ruminant nutrition. In grassland swards with no or little input of nitrogen (N) from mineral fertiliser or manure, legumes are essential for ... -
A regional view of an impending invasion: western corn rootworm development in Northern Germany
(2013-05-10)We examined the immature development of the invasive maize pest western corn rootworm (Diabrotica virgifera virgifera LeConte; WCR) under Northern German temperature regimes. This research was part of the Climate impact ... -
Effects of rising air and soil temperatures on the life cycle of important pathogens in oilseed rape (Brassica napus L.) in Lower Saxony
(2013-04-16)Climate change is expected to cause a mean annual temperature increase in Germany of 2°C by 2050 and up to 4°C by 2100, which will have effects on both crop and fungal pathogen development. Within the research framework ... -
Strategien zur Verbesserung der N-Ausnutzung im ökologisch wirtschaftenden Futterbaubetrieb
(2012-12-18)Organic forage and mixed farms often do not utilize their grassland to its full potential. In mixed farms this affects the arable farming as well. By intensifying grassland production (more clover, more cuts), N leaching ... -
Tiergesundheit in der ökologischen Milchviehhaltung - Status quo sowie (Weiter-) Entwicklung, Anwendung und Beurteilung eines präventiven Konzeptes zur Herdengesundheitsplanung
(2012-08-09)The prevention of animal health problems is crucial in organic livestock farming: this may be achieved by choosing appropriate animal housing conditions as well as suitable breeds and, offering high quality feedstuffs, ... -
Tiergesundheit in der ökologischen Milchviehhaltung - Status quo sowie (Weiter-) Entwicklung, Anwendung und Beurteilung eines präventiven Konzeptes zur Herdengesundheitsplanung
(2012-08-09)The prevention of animal health problems is crucial in organic livestock farming: this may be achieved by choosing appropriate animal housing conditions as well as suitable breeds and, offering high quality feedstuffs, ... -
Effects of agricultural management and manipulated plant species composition of permanent grassland on productivity and sward structure
(2012-05-04)The relationship between biodiversity and ecosystem functions of grasslands has received increasing attention in recent years. Scientists have sought to disentangle this complex relationship by sown biodiversity experiments ...