The present elaboration has a form of concise information on positive effects of research collaboration between breeders from Agricultural University and scientists from the Institute of Agrophysics PAS in Lublin. This idea was very fruitful as already in 1973 evaluation of individual plants of hop according to its suitability to mechanical harvesting was started. The results were used to select components for crossing. Thanks to comp1ex evaluation of usable features of recombinants it was possible to select optimal ideotypes for further formative breeding. Two original varieties of hop came from this valuable material. Common investigations comprised also winter and spring wheat, lentil and everlasting pea.