Poor farmers in marginal areas continue to grow old crop varieties that are often susceptible to pests and disease, and which are less suited to current constraints and opportunities experienced by farmers. These farmers have had little exposure to new varieties, whilst those that have been released are often not suitable for conditions on marginal lands. One means of addressing this problem is to place the seed of novel cultivars directly in the hands of the farmers. By facilitating collaboration between plant breeders and farmers, the poorest farmers gain the opportunity to benefit from new varieties. Methods used to achieve this are known as Participatory Varietal Selection (PVS) and client-oriented breeding. This record focuses on Participatory Varietal Selection in the Terai region of Nepal.