Optimal Plot Dimensions for Performance Testing of Hybrid Potato in the Field

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 individual plants 90-plant plots both diploid hybrid tetraploid were measured provided data derive relationships between LSD% shape. We provide method estimate equations calculate expected when using different dimensions relatively homogeneous trial for tuber yield, volume, count, standard deviations volume Compared with yield traits, was small. The effect minor. With these equations, breeders determine what needed reach desired precision each trait.