This Test Guideline is designed to assess the toxicity of substances to freshwater aquatic plants of the genus Lemna (duckweed). Exponentially growing plant cultures of the genus Lemna (Lemna gibba and Lemna minor usually) are allowed to grow as monocultures in, at least, five concentrations of...

What can further market integration contribute to growth and employment? A series of hypothetical trade reform scenarios explores what countries at different levels of development can expect to gain from reforming tariffs, non-tariff barriers, trade facilitation and domestic support to...