Abstract Field trials to evaluate the performance of new varieties are an essential component potato breeding. Besides genetic differences, environmental factors can lead variation in a trial. In variety trials, observed differences amongst should reflect without large impact random or systematic field. One way reduce within-field is adjust plot size and its shape Two years field which individu...

Software vendors often provide software for free download but with restrictions (e.g., time and/or functionality restrictions). The question arises as to what extent the restrictions should be set to induce users to procure the full version. This study seeks to answer this question through two perspectives: expectation-disconfirmation and coping behavior. Based on these perspectives, a research...