Experience in general practical applied research with flowering and green pot plants, ornamentals, vegetables and ingredient plants like vanilla, black pepper, papaya, passionfruit, herbs, medicinal plants, perfume plants (former) specialist on growth and development on various pot plants especially on flowering of for instance Begonia, Hydrangea, Kalanchoë. Also involved in experiments with crop health (botrytis), substrates, fertilization (effects of low phosphate), (diffuse) light.