Performance of offspring that is greater than the average of the performance of the parents. Usually the amount of superiority of the crossbred over the average of the parental breeds. Also referred to as hybrid vigor.
Sometimes called "hybrid vigor." It is a phenomenon with first generation crosses. Unfortunately, because hybrids do not reproduce true to form, the heterosis does not last. Seeds must be bought each year to maintain the same standard.
Refers to the phenomenon in which the Fl hybrid obtained by the crossing of two genetically dissimilar parents shows superiority over the best standard check prevailing at that time in one or a combination of characters.