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Now showing items 191-197 of 197

2012-02-27Zeitschriftenartikel

Crude protein, amino acid and alkaloid contents of annual sweet lupin (Lupinus spp. L.) forages and seeds grown in Ethiopia

Yeheyis, Likawent; Kijora, Claudia; van Santen, Edzard; Wink, Michael; Danier, Jürgen; Peters, Kurt J.

Though bitter white lupin (Lupinus albus L.) is a traditional crop in Ethiopia, sweet lupins are new to the country. As a result, the nutritional value of low-alkaloid lupins has not been evaluated under Ethiopian conditions. ...

2014-09-09Zeitschriftenartikel

Treatment comparisons in agricultural field trials accounting for spatial correlation

Richter, Christel; Kroschewski, Bärbel; Piepho, Hans-Peter; Spilke, Joachim

The classical analysis model for agricultural field trials is based on the principles of experimental design – randomization, replication and blocking – and it assumes independent residual effects. Accounting for any ...

2010-07-27Zeitschriftenartikel

A participatory approach to the evaluation of the efficiency of animal recording practices based on institutional analysis and development framework

Wasike, Chrilukovian; Kahi, A. K.; Peters, Kurt J.

Animal recording is an interactive process that involves several practices. The efficiency of the process is essential to ensure the utility of outcomes necessary for sustainable participation. Most evaluation approaches ...

2017-10-16Zeitschriftenartikel

Bioefficacy of enhanced diatomaceous earth and botanical powders on the mortality and progeny production of Acanthoscelides obtectus (Coleoptera: Chrysomelidae), Sitophilus granarius (Coleoptera: Dryophthoridae) and Tribolium castaneum (Coleoptera: Tenebrionidae) in stored grain cereals

Adarkwah, Charles; Obeng-Ofori, Daniel; Hörmann, Vanessa; Ulrichs, Christian; Schöller, Matthias

Food losses caused by insects during postharvest storage are of paramount economic importance worldwide, especially in Africa. Laboratory bioassays were conducted in stored grains to determine the toxicity of powders of ...

2003-08-05Zeitschriftenartikel

The impact of controlled breeding on milk production in pastoral goats in northern Kenya: an application of polynomial growth curve fitting

The paper investigates the effect of controlled seasonal breeding on milk production in a herd of Small East African (SEA) goats. Polynomial growth curve models were fitted to both daily and cumulative milk yield data ...

2023-08-25Zeitschriftenartikel

Effect of Ozone Stresses on Growth and Secondary Plant Metabolism of Brassica campestris L. ssp. chinensis

Han, Young Jong; Beck, Winston; Mewis, Inga; Förster, Nadja; Ulrichs, Christian

Determining plant responses to hazardous air pollutants is critical in predicting food security programs and challenges in the future. This study aimed to determine the effects of various ozone levels on plant growth ...

2023-05-22Zeitschriftenartikel

Analysis of the Spatial Dispersion of Tomato Brown Rugose Fruit Virus on Surfaces in a Commercial Tomato Production Site

Ehlers, Jens; Nourinejhad Zarghani, Shaheen; Liedtke, Stefanie; Kroschewski, Bärbel; Büttner, Carmen; Bandte, Martina

The tomato brown rugose fruit virus (ToBRFV) causes severe damage to tomato cultivars and has international economic importance. The harmful tobamovirus is easily mechanically transmissible and highly stable. An ongoing ...

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